MMM DEF 14A Report ended May 13, 2014

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UNITED STATES
SECURITIES AND EXCHANGE COMMISSION
Washington, D.C. 20549

SCHEDULE 14A

Proxy Statement Pursuant to Section 14(a) of
the Securities Exchange Act of 1934

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Inge G. Thulin
Chairman of the Board, President and
Chief Executive Officer

		March 26, 2014

Dear Stockholder:

We are pleased to invite you to attend 3M's Annual Meeting of Stockholders, which will be held on Tuesday, May 13, 2014, at 10:00 a.m., Central Daylight Time at a new location at the Austin Convention Center , 500 E. Cesar Chavez Street, Austin, Texas 78701. Our Electronics and Energy Business Group is headquartered in Austin, Texas and we are excited about having our Annual Meeting in Austin for the first time. We will also provide a live webcast of the meeting.

Details regarding admission to the meeting and the business to be conducted are provided in the accompanying Notice of Annual Meeting and Proxy Statement. We will report on Company operations and discuss our future plans. There will also be time for your questions and comments.

We sincerely hope you will be able to join us at the Annual Meeting. The fine attendance of our stockholders at annual meetings over the years has been very helpful in maintaining good communication. For information on how to attend the Annual Meeting, or listen to the live webcast, please read "Annual Meeting Admission" on page 1 of the accompanying Proxy Statement. Your vote is important. Whether or not you plan to attend the Annual Meeting, please vote as soon as possible. You may vote your proxy on the Internet, by telephone, or, if this Proxy Statement was mailed to you, by completing and mailing the enclosed traditional proxy card. Please review the instructions on the proxy card or the electronic proxy material delivery notice regarding each of these voting options.

Thank you for your ongoing support of 3M.

Sincerely,

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2014 ANNUAL MEETING OF STOCKHOLDERS

NOTICE OF 2014 ANNUAL MEETING AND PROXY STATEMENT

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3M COMPANY

3M Center, St. Paul, Minnesota 55144

NOTICE OF 2014 ANNUAL MEETING OF STOCKHOLDERS

		By Order of the Board of Directors,
		GREGG M. LARSON Vice President, Deputy General Counsel and Secretary

IMPORTANT NOTICE REGARDING THE AVAILABILITY OF PROXY MATERIALS FOR THE ANNUAL MEETING OF STOCKHOLDERS TO BE HELD ON MAY 13, 2014: The Notice of Annual Meeting, Proxy Statement, and the 2013 Annual Report are available at www.proxyvote.com . Enter the 12-digit control number located in the box next to the arrow on the Notice of Internet Availability of Proxy Materials or proxy card to view these materials.

THIS PROXY STATEMENT AND PROXY CARD, OR THE NOTICE OF INTERNET AVAILABILITY OF PROXY MATERIALS, ARE BEING DISTRIBUTED TO STOCKHOLDERS ON OR ABOUT MARCH 26, 2014.

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PROXY STATEMENT

The Board of Directors (the "Board") of 3M Company, a Delaware corporation ("3M" or the "Company") is soliciting proxies for the Company's Annual Meeting of Stockholders. You are receiving a Proxy Statement because you own shares of 3M common stock that entitle you to vote at the meeting. By use of a proxy you can vote, whether or not you attend the meeting. The Proxy Statement describes the matters we would like you to vote on and provides information on those matters so you can make an informed decision.

The information included in this Proxy Statement relates to proposals to be voted on at the meeting (if properly presented), the voting process, 3M's Board and Board committees, the compensation of directors and certain executive officers, and other required information.

Purpose of the Annual Meeting

The purpose of the Annual Meeting is to elect the directors identified in this Proxy Statement and to conduct the business described in the Notice of Annual Meeting.

Annual Meeting Admission

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How do I attend the 2014 Annual Meeting? What do I need to bring?

Only stockholders who held shares of 3M common stock as of the close of business on March 14, 2014, the record date, are invited to attend the Annual Meeting. To attend the meeting, you will need to bring an admission ticket and photo identification. You will need to print an admission ticket in advance by visiting www.proxyvote.com and following the instructions there. You will need the 12-digit control number to access www.proxyvote.com . You can find your control number on:

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your proxy card included in this Proxy Statement if it was mailed to you;



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your Notice of Internet Availability of Proxy Materials if you received proxy materials via electronic delivery; or



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your voting instruction card if you hold your shares in street name through a broker or other nominee.

If you are not a record date stockholder, you may be admitted to the meeting only if you have a valid legal proxy from a record date stockholder who has obtained an admission ticket. You must present that proxy and admission ticket, as well as a valid photo identification, at the entrance to the meeting.

On the day of the meeting, an admission ticket, along with a valid photo identification such as a driver's license or passport, must be presented in order to be admitted to the Annual Meeting. Please note that seating is limited, and admission is on a first-come, first-served basis.

For questions about admission to the Annual Meeting, please contact us at 1-800-3M HELPS (1-800-364-3577).

If you do not provide photo identification or comply with the other procedures outlined above, you will not be admitted to the Annual Meeting.

No cameras, recording equipment, electronic devices, large bags, briefcases, or packages will be permitted in the Annual Meeting.

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How do I listen to the live webcast?

If you are unable to attend the Annual Meeting, you can listen to the live webcast of the business portion of the meeting by visiting http://investor.3M.com , or www.3M.com under Investor Relations — Annual Meeting Live Webcast.

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Information about the Notice of Internet Availability of Proxy Materials

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Why did I receive a Notice of Internet Availability of the proxy materials and not the printed proxy materials?

The U.S. Securities and Exchange Commission (the "SEC") allows companies to furnish their proxy materials to stockholders over the Internet. As a result, we are mailing to many of our stockholders a Notice of Internet Availability of Proxy Materials instead of a paper copy of the proxy materials. In addition, we are providing the notice and proxy materials by e-mail to some of our stockholders who previously consented to electronic delivery of proxy materials. Those stockholders should have received an e-mail containing a link to the Web site where the proxy materials are available, as well as a link to the proxy voting Web site. All stockholders receiving the Notice of Internet Availability of Proxy Materials will have the ability to access the proxy materials over the Internet and to request to receive a paper copy of the proxy materials by mail. Instructions on how to access the proxy materials over the Internet or to request a paper copy may be found in the notice. In addition, the notice contains instructions on how you may request to receive proxy materials in printed form by mail or to access them electronically in connection with future distributions of proxy materials. Distributing proxy materials electronically conserves natural resources and reduces the costs of printing and distributing our proxy materials.

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Why did I receive a printed copy of the proxy materials and not the Notice of Internet Availability of Proxy Materials?

We are providing some of our stockholders, including stockholders who have previously requested to receive paper copies of the proxy materials, with paper copies of the proxy materials instead of the Notice of Internet Availability of Proxy Materials.

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How do I view the proxy materials online?

Go to www.proxyvote.com and follow the instructions to view the materials. You will need to provide the control number printed in the box marked by the arrow located on your Notice of Internet Availability of Proxy Materials (see example below — the information in the box is an example only — your number will be different and is unique to you).



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What if I prefer to receive a paper copy of the proxy materials?

You can easily request a paper copy at no cost by using one of the three methods below. You will need to provide the control number printed in the box marked by the arrow located on your Notice of Internet Availability of Proxy Materials (see example above — the information in the box is an example only — your number will be different and is unique to you) .

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By INTERNET at www.proxyvote.com ;



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By TELEPHONE , toll-free at 1-800-579-1639; or



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By sending an E-MAIL to sendmaterial@proxyvote.com (simply provide in the subject line the control number printed in the box marked by the arrow from your Notice of Internet Availability of Proxy Materials; no other information is necessary).



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Can I request to receive my Notice of Internet Availability of Proxy Materials by e-mail rather than by mail?

You may request to receive proxy materials for all future meetings by e-mail by going to www.proxyvote.com or www.investordelivery.com and follow the electronic delivery enrollment instructions. If you choose to access future proxy materials electronically, you will receive an e-mail with instructions containing a link to the Web site where those materials are available and a link to the proxy voting Web site. Your election to access proxy materials by e-mail will remain in effect until you terminate it.

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Please note that you MAY NOT USE your Notice of Internet Availability of Proxy Materials to vote your shares; it is NOT a form for voting. If you return the Notice of Internet Availability of Proxy Materials in an attempt to vote your shares, that vote will not count.

For more information about the Notice of Internet Availability of Proxy Materials, please visit: www.sec.gov/spotlight/proxymatters/e-proxy.shtml

Stockholders Entitled to Vote

Each share of our common stock outstanding as of the close of business on March 14, 2014, the record date, is entitled to one vote at the Annual Meeting on each matter properly brought before the meeting. As of that date, there were 657,808,387 shares of common stock issued and outstanding.

Most 3M stockholders hold their shares through a broker, bank, trustee, or other nominee (which for simplicity we refer to as a "broker or other nominee") rather than directly in their own name. As summarized below, there are some distinctions between shares held of record and those owned beneficially:

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STOCKHOLDER OF RECORD — If your shares are registered directly in your name with 3M's transfer agent, Wells Fargo Bank, N.A., you are considered the stockholder of record of those shares and the Notice of Internet Availability of Proxy Materials, or if you requested paper delivery, a copy of these proxy materials are being sent directly to you by 3M. As the stockholder of record, you have the right to grant your voting proxy directly to 3M or to vote in person at the meeting. You may also vote on the Internet or by telephone, as described in the Notice of Internet Availability of Proxy Materials and below under the heading "Voting Methods."



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BENEFICIAL OWNER — If your shares are held by a broker or other nominee, you are considered the beneficial owner of shares held in street name and these proxy materials are being forwarded to you by your broker or other nominee who is considered the stockholder of record of those shares. As the beneficial owner, you have the right to direct your broker or other nominee on how to vote and are also invited to attend the meeting. However, since you are not the stockholder of record, you may not vote these shares in person at the meeting, unless you obtain a legal proxy from the broker or other nominee. Your broker or other nominee is obligated to provide you with a voting instruction card for you to use. You may also vote on the Internet or by telephone, as described in the Notice of Internet Availability of Proxy Materials and below under the heading "Voting Methods." If you fail to provide voting instructions to your broker or other nominee, it will have discretion to vote your shares with respect to Proposal 2, but not with respect to Proposals 1, 3, or 4, as described below under "Voting Requirements to Elect Directors and Approve Each of the Proposals Described in this Proxy Statement."



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PLAN ACCOUNTS — If your shares are held in your account in the 3M Voluntary Investment Plan and Employee Stock Ownership Plan or the 3M Savings Plan, you are considered the beneficial owner of these shares and the trustee of the plans is considered the stockholder of record. Participants in 3M's Voluntary Investment Plan and Employee Stock Ownership Plan or the 3M Savings Plan may direct the trustee on how to vote the shares allocated to their account via the Internet, by telephone, or by signing and submitting the proxy card as described in the Notice of Internet Availability of Proxy Materials and below under the heading "Voting Methods." Participants in 3M's Voluntary Investment Plan and Employee Stock Ownership Plan may also direct the trustee how to vote a proportionate number of allocated shares of common stock for which it has not received direction by following the same voting instructions. If you fail to direct the trustee how to vote your shares by following these instructions, the trustee will vote your shares as described in the proxy card.

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Proposals You Are Asked to Vote On and the Board's Voting Recommendations

The following proposals are included in this Proxy Statement and are scheduled to be voted on at the meeting. 3M's Board recommends that you vote your shares as indicated below.

Other than the proposals described in this Proxy Statement, the Board is not aware of any other matters to be presented for a vote at the Annual Meeting. If you grant a proxy by telephone, Internet, or by signing and returning your proxy card, any of the persons appointed by the Board as proxy holders — Gregg M. Larson, David W. Meline, and Inge G. Thulin — will have the discretion to vote your shares on any additional matters properly presented for a vote at the meeting. If any of our nominees is unavailable as a candidate for director, the above-named proxy holders will vote your proxy for another candidate or candidates as may be nominated by the Board of Directors.

Voting Requirements to Elect Directors and Approve Each of the Proposals Described in this Proxy Statement

Quorum — The presence of the holders of a majority of the outstanding shares of common stock entitled to vote at the Annual Meeting, present in person or represented by proxy, is necessary to constitute a quorum. Abstentions and "broker non-votes" are counted as present for purposes of determining a quorum. As discussed below, a "broker non-vote" occurs when a broker or other nominee holding shares for a beneficial owner does not vote on a particular proposal because the broker or other nominee does not have discretionary voting power for that proposal and has not received instructions from the beneficial owner.

Broker Voting — Under New York Stock Exchange ("NYSE") rules, brokers have discretionary authority to vote their clients' shares in "routine" matters (such as ratification of auditors) so long as the beneficial owner of those shares did not provide voting instructions to the broker at least ten days before the stockholder meeting. Director elections, stockholder proposals, and executive compensation matters, including say-on-pay, say-on-frequency of say-on-pay, and say-on golden parachutes proposals, are not considered "routine" matters for these purposes. As a result, if you do not provide your broker with instructions as to how to vote your shares, your broker will be prohibited from voting on Proposals 1, 3, and 4, resulting in a "broker non-vote" with respect to those proposals.

If you are a beneficial owner (other than as a participant in the 3M Voluntary Investment Plan and Employee Stock Ownership Plan or the 3M Savings Plan), your broker or other nominee is permitted to vote your shares on the ratification of PricewaterhouseCoopers LLP as our independent registered public accounting firm for 2014, even if it does not receive voting instructions from you.

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Election of Directors — In accordance with 3M's Bylaws, each director is elected by the vote of the majority of votes cast (which means the number of votes cast "for" a director's election exceeds the number of votes cast "against" that director's election, with "abstentions" and "broker non-votes" not counted as a vote cast either "for" or "against" that director's election) with respect to that director's election at any meeting for the election of directors at which a quorum is present. However, if the number of nominees exceeds the number of directors to be elected (a "Contested Election") as of the tenth (10th) day preceding the date the Company first mails its notice of the meeting to its stockholders, the directors shall be elected by the vote of a plurality of the votes cast (which means that the nominees who receive the most affirmative votes will be elected to serve as directors).

For an election where the majority vote standard applies, the Nominating and Governance Committee has established procedures under which any incumbent director who is not elected shall offer to tender his or her resignation to the Board. In the event an incumbent director fails to receive a majority of the votes cast in an election that is not a Contested Election, the Nominating and Governance Committee, or such other committee designated by the Board of Directors, shall make a recommendation to the Board of Directors as to whether to accept or reject the resignation of such incumbent director, or whether other action should be taken. The Board of Directors shall act on the resignation, taking into account the Committee's recommendation, and publicly disclose (by issuing a press release and filing appropriate disclosure with the Securities and Exchange Commission) its decision regarding the resignation and, if such resignation is rejected, the rationale behind the decision within ninety (90) days following certification of the election results. The Nominating and Governance Committee in making its recommendation and the Board of Directors in making its decision each may consider any factors and other information that they consider appropriate and relevant.

An incumbent director who fails to receive a majority of the votes cast in an election that is not a Contested Election (as defined above) and who tenders his or her resignation pursuant to the procedures described above shall remain active and engaged in Board activities while the Nominating and Governance Committee and the Board decide whether to accept or reject such resignation, or whether other action should be taken. However, it is expected that such incumbent director shall not participate in any proceedings by the Nominating and Governance Committee or the Board regarding whether to accept or reject such director's resignation, or whether to take other action with respect to such director.

If the Board of Directors accepts a director's resignation, or if a nominee for director is not elected and the nominee is not an incumbent director, then the Board of Directors may fill the resulting vacancy pursuant to the Bylaws.

All Other Proposals — The affirmative "FOR" vote of a majority of those shares present in person or represented by proxy at the meeting and entitled to vote on the matter is required to approve Proposals 2 through 4. In tabulating the voting result for any particular proposal, abstentions and, if applicable, "broker non-votes" are not counted as votes "FOR" or "AGAINST" the proposal. An abstention will, however, be counted as entitled to vote on a proposal and will, therefore, have the effect of a vote "AGAINST." The stockholder proposal is presented as a request to the Board to take action.

Voting Methods

If you hold shares directly as the stockholder of record, you may vote by granting a proxy or by voting in person at the Annual Meeting by requesting a ballot. If you hold shares beneficially in street name, you may vote by submitting voting instructions to your broker or other nominee or in person at the Annual Meeting by requesting a legal proxy from your broker or other nominee. If you own shares beneficially as a participant in the 3M Voluntary Investment Plan and Employee Stock Ownership Plan or the 3M Savings Plan, you may vote by submitting voting instructions to the trustee. In most instances, you will be able to do this over the Internet, by telephone, or by mail. Even if you plan to attend the Annual

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Meeting, we recommend that you vote your shares in advance as described below so that your vote will be counted if you later decide not to attend the Annual Meeting. Please refer to the summary instructions below and those included on your Notice of Internet Availability of Proxy Materials or proxy card or, for shares held in street name, the voting instruction card provided by your broker or other nominee.

The Internet and telephone voting procedures are designed to authenticate stockholders by use of a control number and to allow you to confirm that your instructions have been properly recorded. If you vote by telephone or on the Internet, you do not need to return your proxy card. Telephone and Internet voting for stockholders of record will be available 24 hours a day, up until 10:59 p.m., Central Daylight Time, on May 12, 2014. Participants in 3M's Voluntary Investment Plan and Employee Stock Ownership Plan and the 3M Savings Plan may instruct the trustee how to vote their shares via the Internet, by telephone, or by signing and returning the proxy card by 10:59 p.m., Central Daylight Time, on May 8, 2014.

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VOTE BY INTERNET — www.proxyvote.com — If you have Internet access, you may submit your proxy from any location in the world 24 hours a day, 7 days a week. Have your proxy card or the Notice of Internet Availability of Proxy Materials in hand when you access the Web site and follow the instructions to obtain your records and to create an electronic voting instruction form.



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VOTE BY TELEPHONE — 1-800-690-6903 — If you live in the United States, you may use any touch-tone telephone to vote your proxy toll-free 24 hours a day, 7 days a week. Have your proxy card or the Notice of Internet Availability of Proxy Materials in hand when you call and follow the instructions.



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VOTE BY MAIL — You may vote by signing and submitting your proxy card to the Company. If you provide specific voting instructions in your proxy card, your shares will be voted as you instruct. If you sign your proxy card, but do not provide voting instructions, your shares will be voted as the Board recommends. Mark, sign, and date your proxy card and return it in the postage-paid envelope provided so that it is received by May 12, 2014 (or by May 8, 2014 for participants in the 3M Voluntary Investment Plan and Employee Stock Ownership Plan and the 3M Savings Plan), to 3M Company, c/o Broadridge, 51 Mercedes Way, Edgewood, NY 11717. For shares held in street name, you may direct your broker or other nominee on how to vote your shares by following the instructions set forth in the voting instruction card that your broker or other nominee has provided.



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VOTE IN PERSON — If you are a stockholder of record, you may grant your proxy to 3M or vote in person at the Annual Meeting by requesting a ballot at the meeting. If you are a street name holder, you may vote in person at the Annual Meeting only if you obtain a legal proxy from your broker or other nominee.

All shares that have been properly voted and not revoked will be voted at the Annual Meeting.

Changing Your Vote

You may change your proxy voting instructions at any time prior to the vote at the Annual Meeting. You may enter a new vote by using the Internet or the telephone or by mailing a new proxy card or new voting instruction card bearing a later date (which will automatically revoke your earlier voting instructions), so long as the new vote is received before the deadlines described above under the heading "Voting Methods." You may also change your vote by granting a new proxy or by voting in person at the Annual Meeting.

Counting the Vote

In the election of directors, you may vote "FOR" or "AGAINST" one or more of the nominees or you may "ABSTAIN." Abstentions will have no effect on the outcome of the election of directors. For Proposals 2 through 4, you may vote "FOR," "AGAINST," or "ABSTAIN," but please note that

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abstentions will have the same effect as a vote "AGAINST." If you sign your proxy card or broker voting instruction card but provide no voting instructions, your shares will be voted in accordance with the recommendations of the Board. Shares held in your account in the 3M Voluntary Investment Plan and Employee Stock Ownership Plan or the 3M Savings Plan will be voted by the trustee as described in "Stockholders Entitled to Vote" beginning on page 3.

Representatives of Broadridge Financial Solutions, Inc. will tabulate the votes and act as the inspectors of election.

Confidentiality

The Company's Board of Directors has a policy that all stockholder proxies, ballots, and tabulations that identify stockholders are to be maintained in confidence. No such document will be available for examination, and the identity and vote of any stockholder will not be disclosed, except as necessary to meet legal requirements and allow the inspectors of election to certify the results of the stockholder vote. The policy also provides that inspectors of election for stockholder votes must be independent and cannot be employees of the Company. Occasionally, stockholders provide written comments on their proxy card that may be forwarded to 3M management.

Results of the Vote

We will issue a press release announcing the preliminary voting results for items of business properly presented at the meeting and will disclose the preliminary results for those items (or final results if available) in a Current Report on Form 8-K filed with the Securities and Exchange Commission within four business days of the Annual Meeting date. The press release with voting results will also be available on our Web site at www.3M.com/profile/pressbox/index.jhtml .

Delivery of Documents to Stockholders Sharing an Address

Securities and Exchange Commission rules allow us to deliver a single copy of an annual report and proxy statement to any household not participating in electronic proxy material delivery at which two or more stockholders reside, if we believe the stockholders are members of the same family (a practice called "householding"). We believe that householding benefits both you and the Company by eliminating duplicate mailings to stockholders living at the same address and by reducing our printing and mailing costs. Each stockholder will continue to receive a separate proxy card or voting instruction card.

Your household may have received a single set of proxy materials this year. If you prefer to receive your own copy now or in future years, please request a duplicate set by calling 1-800-579-1639, by going to www.proxyvote.com , by e-mailing sendmaterial@proxyvote.com , or by writing to 3M Company, c/o Broadridge, 51 Mercedes Way, Edgewood, NY 11717. Alternatively, if your household received multiple sets of proxy materials this year, and members of your household who are entitled to receive proxy materials would all prefer to receive only a single set of proxy materials, you may submit such a request as specified in the preceding sentence.

If a broker or other nominee holds your shares, you may continue to receive some duplicate mailings. Certain brokers will eliminate duplicate account mailings by allowing stockholders to consent to such elimination, or through implied consent if a stockholder does not request continuation of duplicate mailings. Since not all brokers and nominees may offer stockholders the opportunity this year to eliminate duplicate mailings, you may need to contact your broker or other nominee directly to discontinue duplicate mailings to your household.

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List of Stockholders

A list of the stockholders of record entitled to vote at the Annual Meeting will be available for inspection at the Annual Meeting for any purpose germane to the meeting. The list also will be available for ten days prior to the meeting between the hours of 7:45 a.m. and 4:30 p.m., Central Daylight Time, at our offices at 3M Austin Center, 6801 River Place Blvd., Austin, Texas 78726, by contacting the Secretary of the Company.

Cost of Proxy Solicitation

3M will pay for the cost of preparing, assembling, printing, mailing, and distributing these proxy materials. You will need to obtain your own Internet access if you choose to access the proxy materials and/or vote over the Internet. In addition to mailing these proxy materials, the solicitation of proxies or votes may be made in person, by telephone, or by electronic communication by our directors, officers, and employees, who will not receive any additional compensation for these solicitation activities. We have hired Georgeson Shareholder Communications, Inc. to assist us in the distribution of proxy materials and the solicitation of votes. We will pay Georgeson Shareholder Communications, Inc. a fee of $20,000 plus expenses for these services. We will also reimburse brokerage houses and other custodians, nominees, and fiduciaries for their reasonable out-of-pocket expenses for forwarding proxy and solicitation materials to beneficial owners of stock.

Transfer Agent

Our transfer agent is Wells Fargo Bank, N.A. All communications concerning stockholders of record accounts, including address changes, name changes, common stock transfer requirements, and similar issues can be handled by contacting Wells Fargo Bank, N.A. at 1-800-401-1952 (U.S.), 651-450-4064 (outside the U.S.), www.shareowneronline.com , or in writing, P.O. Box 64854, St. Paul, MN 55164-0854.

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GOVERNANCE OF THE COMPANY

Corporate Governance Overview

The Company believes that good corporate governance practices serve the long-term interests of stockholders, strengthen the Board and management, and further enhance the public trust 3M has earned from more than a century of operating with uncompromising integrity and doing business the right way. The following sections provide an overview of 3M's corporate governance practices, including the Corporate Governance Guidelines, the Board's leadership structure and the responsibilities of the lead director, communication with directors, director independence, the director nomination process, the Board's role in risk oversight, the Codes of Conduct for directors and employees, public policy engagement, and the Company's commitment to the environment and sustainability. The following table provides an overview of our corporate governance practices:

Corporate Governance Guidelines

The Board has adopted Corporate Governance Guidelines which provide a framework for the effective governance of the Company. The guidelines address matters such as the respective roles and responsibilities of the Board and management, the Board's leadership structure, the responsibilities of the lead director, director independence, the Board Membership Criteria, Board committees, and Board and management evaluation. The Board's Nominating and Governance Committee is responsible for overseeing and reviewing the Guidelines at least annually, and recommending any proposed changes to the Board for approval. The Corporate Governance Guidelines, the Certificate of Incorporation and

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Bylaws, the charters of the Board committees, the Director Independence Guidelines, and the Codes of Conduct provide the framework for the governance of the Company and are available on our Web site at www.3M.com , under Investor Relations — Corporate Governance.

Executive Sessions

Independent directors regularly meet in executive sessions without the Chairman and CEO or other members of management present to review the criteria upon which the performance of the Chairman and CEO is based, to review the performance of the Chairman and CEO against those criteria, to ratify the compensation of the Chairman and CEO as approved by the Compensation Committee, and to discuss any other relevant matters.

Board's Leadership Structure

The Board's leadership structure is characterized by:

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a combined Chairman of the Board and CEO;



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a strong, independent, and highly experienced Lead Director with well-defined responsibilities that support the Board's oversight responsibilities;



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a robust committee structure consisting entirely of independent directors with oversight of various types of risks; and



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an engaged and independent Board.

The Board of Directors believes that this leadership structure provides independent board leadership and engagement while deriving the benefit of having our CEO also serve as Chairman of the Board. As the individual with primary responsibility for managing the Company's day-to-day operations and with in-depth knowledge and understanding of the Company, our CEO is best positioned to chair regular Board meetings as the directors discuss key business and strategic issues. Coupled with an independent Lead Director, this combined structure provides independent oversight while avoiding unnecessary confusion regarding the Board's oversight responsibilities and the day-to-day management of business operations.

The Board believes that adopting a rigid policy on whether to separate or combine the positions of Chairman of the Board and CEO would inhibit the Board's ability to provide for a leadership structure that would best serve stockholders. As a result, the Board has rejected adopting a policy permanently separating or combining the positions of Chairman and CEO in its Corporate Governance Guidelines, which are reviewed at least annually and available on our Web site at www.3M.com , under Investor Relations — Corporate Governance. Instead, the Board adopted an approach that allows it, in representing the stockholders' best interests, to decide who should serve as Chairman or CEO, or both, under present or anticipated future circumstances.

The Board believes that combining the roles of CEO and Chairman contributes to an efficient and effective Board. The Board believes that to drive change and continuous improvement within the Company, tempered by respect for 3M's traditions and values, the CEO must have maximum authority. The CEO is primarily responsible for effectively leading significant change, improving operational efficiency, driving growth, managing the Company's day-to-day business, managing the various risks facing the Company, and reinforcing the expectation for all employees of continuing to build on 3M's century-old tradition of uncompromising integrity and doing business the right way.

The Board believes that the Company's corporate governance measures ensure that strong, independent directors continue to effectively oversee the Company's management and key issues

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related to executive compensation, CEO evaluation and succession planning, strategy, risk, and integrity. The Corporate Governance Guidelines provide, in part, that:

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independent directors comprise a substantial majority of the Board;



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directors are elected annually by a majority vote in uncontested director elections;



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only independent directors serve on the Audit, Compensation, Finance, and Nominating and Governance Committees;



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the committee chairs establish their respective agendas;



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the Board and committees may retain their own advisors;



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the independent directors have complete access to management and employees;



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the independent directors meet in executive session without the CEO or other employees during each regular Board meeting; and



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the Board and each committee regularly conduct a self-evaluation to determine whether it and its committees function effectively.

The Board has also designated one of its members to serve as Lead Director, with responsibilities (described in the next section) that are similar to those typically performed by an independent chairman.

Lead Independent Director

The Board has designated one of its members to serve as a Lead Director, with responsibilities that are similar to those typically performed by an independent chairman ("Lead Director"). Michael L. Eskew was appointed Lead Director by the independent directors effective November 12, 2012, succeeding Dr. Vance Coffman who had served as Lead Director since 2006. Michael Eskew is a highly experienced director, currently serving on the boards of United Parcel Service, Inc., International Business Machines Corporation, and Eli Lilly and Company, and was the former Chairman and CEO of United Parcel Service, Inc. His responsibilities include, but are not limited to, the following:

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Presides at all meetings of the Board at which the Chairman is not present, including executive sessions of the independent directors;



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Acts as a key liaison between the Chairman/CEO and the independent directors;



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Approves the meeting agendas for the Board, and approves the meeting schedules to assure that there is sufficient time for discussion of all agenda items;



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Has the authority to approve the materials to be delivered to the directors in advance of each Board meeting and provides feedback regarding the quality, quantity, and timeliness of those materials (this duty not only gives the Lead Director approval authority with respect to materials to be delivered to the directors in advance of each Board meeting but also provides a feedback mechanism so that the materials may be improved for future meetings);



•

Has the authority to call meetings of the independent directors;



•

Communicates Board member feedback to the Chairman/CEO (except that the chair of the Compensation Committee leads the discussion of the Chairman/CEO's performance and communicates the Board's evaluation of that performance to the Chairman/CEO);



•

If requested by major stockholders, ensures that he is available, when appropriate, for consultation and direct communication; and



•

Performs such other duties as requested by the independent directors.

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Communication with Directors

The Board of Directors has adopted the following process for stockholders and other interested parties to send communications to members of the Board. Stockholders and other interested parties may communicate with the Lead Director, the chairs of the Audit, Compensation, Finance, and Nominating and Governance Committees of the Board, or with any of our other independent directors, or all of them as a group, by sending a letter to the following address: Corporate Secretary, 3M Company, 3M Center, Building 220-14W-06, St. Paul, MN 55144-1000.

Director Independence

The Board has adopted a formal set of Director Independence Guidelines with respect to the determination of director independence, which either conform to or are more exacting than the independence requirements of the NYSE listing standards, and the full text of which is available on our Web site at www.3M.com , under Investor Relations — Corporate Governance. In accordance with these Guidelines, a director or nominee for director must be determined to have no material relationship with the Company other than as a director. The Guidelines specify the criteria by which the independence of our directors will be determined, including strict guidelines for directors and their immediate family members with respect to past employment or affiliation with the Company or its independent registered public accounting firm. The Guidelines also prohibit Audit and Compensation Committee members from having any direct or indirect financial relationship with the Company, and restrict both commercial and not-for-profit relationships of all directors with the Company. Directors may not be given personal loans or extensions of credit by the Company, and all directors are required to deal at arm's length with the Company and its subsidiaries, and to disclose any circumstance that might be perceived as a conflict of interest.

In accordance with these Guidelines, the Board undertook its annual review of director independence. During this review, the Board considered transactions and relationships between each director, or any member of his or her immediate family and the Company and its subsidiaries and affiliates in each of the most recent three completed fiscal years. The Board also considered whether there were any transactions or relationships between the Company and a director or any member of a director's immediate family (or any entity of which a director or an immediate family member is an executive officer, general partner, or significant equity holder). The Board considered that in the ordinary course of business, transactions may occur between the Company and its subsidiaries and companies at which some of our directors are or have been officers. In particular, the Board considered the annual amount of sales to 3M for each of the most recent three completed fiscal years by the company where director Muhtar Kent serves and the company where director Thomas "Tony" K. Brown served as an executive officer, as well as purchases by those companies from 3M. The Board determined that the amount of sales and purchases in each fiscal year was below one percent of the annual revenues of each of those companies, the threshold set forth in the Director Independence Guidelines. The Board also considered charitable contributions to not-for-profit organizations with which our directors or immediate family members are affiliated, none of which approached the threshold set forth in our Director Independence Guidelines.

As a result of this review, the Board affirmatively determined that the following directors are independent under these Guidelines: Linda G. Alvarado, Thomas "Tony" K. Brown, Vance D. Coffman, Michael L. Eskew, W. James Farrell, Herbert L. Henkel, Muhtar Kent, Edward M. Liddy, Robert S. Morrison, Aulana L. Peters, and Robert J. Ulrich. The Board has also determined that no members of the Audit Committee or Compensation Committee received any compensation from the Company other than directors' fees. Inge G. Thulin, Chairman of the Board, President and Chief Executive Officer, is considered to not be independent because of his employment by the Company.

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Director Nomination Process

Role of the Nominating and Governance Committee

The Nominating and Governance Committee identifies individuals who the Committee believes are qualified to become Board members in accordance with the Board Membership Criteria set forth below, and recommends selected individuals to the Board for nomination to stand for election at the next meeting of stockholders of the Company in which directors will be elected. In the event there is a vacancy on the Board between meetings of stockholders, the Committee seeks to identify individuals who the Committee believes are qualified to become Board members in accordance with the Board Membership Criteria set forth below, and may recommend one or more of such individuals for appointment to the Board.

Nominees Proposed by Stockholders for Consideration by the Committee

The Committee has a policy to consider properly submitted stockholder recommendations for candidates for membership on the Board of Directors. Stockholders proposing individuals for consideration by the Committee must include at least the following information about the proposed nominee: the proposed nominee's name, age, business or residence address, principal occupation or employment, and whether such person has given written consent to being named in the Proxy Statement as a nominee and to serving as a director if elected. Stockholders should send the required information about the proposed nominee to:

Corporate Secretary
3M Company
3M Center
Building 220-14W-06
St. Paul, MN 55144-1000.

In order for an individual proposed by a stockholder to be considered by the Committee for recommendation as a Board nominee for the 2015 Annual Meeting, the Corporate Secretary must receive the proposal by November 26, 2014. Such proposals must be sent via registered, certified, or express mail (or other means that allows the stockholder to determine when the proposal was received by the Company). The Corporate Secretary will send properly submitted stockholder proposed nominations to the Committee Chair for consideration at a future Committee meeting. Individuals proposed by stockholders in accordance with these procedures will receive the same consideration received by individuals identified to the Committee through other means.

Stockholder Nominations

In addition, 3M's Bylaws permit stockholders to nominate directors at an annual meeting of stockholders or at a special meeting at which directors are to be elected in accordance with the notice of meeting. Stockholders intending to nominate a person for election as a director must comply with the requirements set forth in the Company's Bylaws. With respect to nominations to be acted upon at our 2015 Annual Meeting, our Bylaws would require, among other things, that the Corporate Secretary receive written notice from the record stockholder no earlier than January 13, 2015, and no later than February 12, 2015. The notice must contain the information required by the Bylaws, a copy of which is available on our Web site at www.3M.com , under Investor Relations — Corporate Governance. Nominations received after February 12, 2015, will not be acted upon at the 2015 Annual Meeting.

Board Membership Criteria

3M's Corporate Governance Guidelines contain Board Membership Criteria which include a list of skills and characteristics expected to be represented on 3M's Board. The Committee periodically

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reviews with the Board the appropriate skills and characteristics required of Board members given the current Board composition. It is the intent of the Board that the Board, itself, will be a high performance organization creating competitive advantage for the Company. To perform as such, the Board will be composed of individuals who have distinguished records of leadership and success in their arena of activity and who will make substantial contributions to Board operations and effectively represent the interests of all stockholders. The Committee's and the Board's assessment of Board candidates includes, but is not limited to, consideration of:

•

Roles in and contributions valuable to the business community;



•

Personal qualities of leadership, character, judgment, and whether the candidate possesses and maintains throughout service on the Board a reputation in the community at large of integrity, trust, respect, competence, and adherence to the highest ethical standards;



•

Relevant knowledge and diversity of background and experience in business, manufacturing, technology, finance and accounting, marketing, international business, government, and other areas; and



•

Whether the candidate is free of conflicts and has the time required for preparation, participation, and attendance at all meetings.

In addition to these minimum requirements, the Committee will also evaluate whether the nominee's skills are complementary to the existing Board members' skills, the Board's needs for particular expertise in business, manufacturing, technology, finance and accounting, marketing, international business, government, or other areas, and will assess the nominee's impact on Board dynamics and effectiveness.

Diversity

The Board of Directors values diversity as a factor in selecting nominees to serve on the Board because its experience is that diversity provides significant benefit to the Board and the Company. Although there is no specific policy on diversity, the Committee considers the Board Membership Criteria in selecting nominees for directors, including diversity of background and experience. Such considerations may include gender, race, national origin, functional background, executive or professional experience, and international experience.

Identification, Evaluation, and Selection of Nominees

The Committee periodically reviews the appropriate size and composition of the Board and anticipates future vacancies and needs of the Board. In the event the Committee recommends an increase in the size of the Board or a vacancy occurs, the Committee considers qualified nominees from several sources, including current Board members and nominees recommended by stockholders and other persons.

The Committee may from time to time retain a director search firm to help the Committee identify qualified director nominees for consideration by the Committee. The Committee retained SpencerStuart in 2013 to help identify future board candidates.

The Committee evaluates qualified director nominees at regular or special Committee meetings against the Board Membership Criteria described above then in effect and reviews qualified director nominees with the Board. The Committee and the Chairman of the Board interview candidates that meet the Board Membership Criteria and the Committee selects nominees that best suit the Board's current needs and recommends one or more of such individuals for election to the Board.

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Board's Role in Risk Oversight

The Board has delegated to the Audit Committee through its charter the primary responsibility for the oversight of risks facing the Company. The Audit Committee's charter provides that the Audit Committee shall "discuss policies and procedures with respect to risk assessment and risk management, the Company's major risk exposures and the steps management has taken to monitor and mitigate such exposures."

The Vice President and General Auditor, Corporate Auditing (the "Auditor"), whose appointment and performance is reviewed and evaluated by the Audit Committee and who has direct reporting obligations to the Committee, is responsible for leading the formal risk assessment and management process within the Company. The Auditor, through consultation with the Company's senior management, periodically assesses the major risks facing the Company and works with those executives responsible for managing each specific risk. The Auditor periodically reviews with the Audit Committee the major risks facing the Company and the steps management has taken to monitor and mitigate those risks. The Auditor's risk management report, which is provided in advance of the meeting, is reviewed with the entire Board by either the chair of the Audit Committee or the Auditor. The executive responsible for managing a particular risk may also report to the full Board on how the risk is being managed and mitigated.

While the Board's oversight of risk primarily is performed by the Audit Committee, the Board has delegated to other committees the oversight of risks within their areas of responsibility and expertise. For example, the Compensation Committee oversees risks associated with the Company's compensation practices, including by performing an annual review of the Company's risk assessment of its compensation policies and practices for its employees. The Finance Committee oversees risks associated with the Company's capital structure, credit ratings and cost of capital, long-term benefit obligations, and use of or investment in financial products, such as derivatives to manage risk related to foreign currencies, commodities, and interest rates. The Nominating and Governance Committee oversees risks associated with the Company's overall governance and its succession planning process to ensure that the Company has a slate of future, qualified candidates for key management positions.

The Board believes that its oversight of risks, primarily through delegation to the Audit Committee, but also through delegation to other committees to oversee specific risks within their areas of responsibility and expertise, and the sharing of information with the full Board, is appropriate for a diversified technology and manufacturing company like 3M. The chair of each committee that oversees risk provides a summary of the matters discussed with the committee to the full Board following each committee meeting. The minutes of each committee meeting are also provided to all Board members. The Board also believes its oversight of risk is enhanced by its current leadership structure (discussed above) because the CEO, who is ultimately responsible for the Company's management of risk, also chairs regular Board meetings. Given his in-depth knowledge and understanding of the Company, the CEO is best able to bring key business issues and risks to the Board's attention.

3M's Codes of Conduct

More than a century of operating with uncompromising integrity has earned 3M trust from our customers, credibility with our communities, and dedication from our employees. All of our employees, including our Chief Executive Officer, Chief Financial Officer, and Chief Accounting Officer, are required to abide by 3M's Code of Conduct to ensure that our business is conducted in a consistently legal and ethical manner. These policies form the foundation of a comprehensive process that includes compliance with corporate policies and procedures and a company-wide focus on uncompromising integrity in every aspect of our operations. Our Code of Conduct covers many topics, including antitrust and competition law, conflicts of interest, financial reporting, protection of confidential information, and compliance with all laws and regulations applicable to the conduct of our business.

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Employees are required to report any conduct that they believe in good faith to be an actual or apparent violation of the Code of Conduct. The Audit Committee has adopted procedures to receive, retain, and treat complaints received regarding accounting, internal accounting controls, or auditing matters, and to allow for the confidential and anonymous submission by employees or others of concerns regarding questionable accounting or auditing matters. Information on how to submit any such communications can be found on 3M's Web site at https://secure.ethicspoint.com/domain/media/en/gui/8897/index.html .

The Board also has adopted a Code of Business Conduct and Ethics for directors of the Company. This Code incorporates long-standing principles of conduct the Company and the Board follow to ensure the Company's business and the activities of the Board are conducted with integrity and adherence to the highest ethical standards, and in compliance with the law.

The Company's Code of Conduct for employees and the Code of Business Conduct and Ethics for Directors are available on our Web site at www.3M.com under Investor Relations — Corporate Governance.

Hedging and Pledging Policies

The Company's stock trading policies prohibit directors and the Company's executive officers from (i) purchasing any financial instrument that is designed to hedge or offset any decrease in the market value of the Company's common stock, including prepaid variable forward contracts, equity swaps, collars and exchange funds; (ii) engaging in short sales related to the Company's common stock; (iii) placing standing orders; (iv) maintaining margin accounts; and (v) pledging 3M securities as collateral for a loan. All transactions in 3M securities by directors and executive officers must be pre-cleared with the Deputy General Counsel.

Public Policy Engagement

The Company believes that transparency with respect to the consideration, processes, and oversight of our engagement with lawmakers is important to our stockholders, and continuously makes efforts to give our stockholders useful information about our public policy engagement. Since 2007 (and updated several times since then), the Company has voluntarily published a detailed explanation of the Company's political activities which is available on our Web site at www.3M.com under Investor Relations — Corporate Governance — "Political Activities and Issue Advocacy." There, the Company sets out in detail its positions on important public policy issues, the factors we consider when making political contributions, and the processes we use for legal, financial, executive, and Board oversight of our political activities and contributions. We also provide links to the reports the 3M PAC files monthly with the Federal Election Commission and the Company's quarterly Lobbying Disclosure reports, as well as a detailed list of our contributions to state candidates and political parties, and contributions to "527" political organizations. The Company also discloses on its Web site the trade associations the Company joined where $25,000 or more of the dues are allocated for lobbying purposes by the trade association. The Company believes that these disclosures on our Web site, which exceed the disclosures required by law, offer transparency respecting the Company's public policy engagement and political activities.

Commitment to the Environment and Sustainability

At 3M, we are working hard to help create a better world for people everywhere. We apply our ingenuity, our expertise and our technology to solve problems innovatively, and with a focus on solutions for the longer term. Sustainability is fundamental to our business philosophy — from product development and manufacturing to how customers use our products.

For more than 40 years, 3M has been a leader among global corporations in sustainability actions and measures, beginning with the creation of its groundbreaking Pollution Prevention Pays (3P)

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Program in 1975 to a broad portfolio of sustainable products today. As a global corporation, we believe that we have a significant responsibility to society in general, and especially to the communities in which we live and work. Fulfilling our responsibility is important both from an environmental stewardship perspective and as a key competitive strategy. Our corporate vision states: " 3M technology advancing every company... 3M products enhancing every home... and 3M innovation improving every life ." It is that vision — that focuses on our customers' needs and well-being — that guides our sustainability strategies and goals, and the respect we demonstrate for our social and physical environments.

We have created hundreds of sustainable solutions and product platforms to help our customers manage their environmental footprint — from paint systems that reduce the need for cleaning solvents and window films that ease energy consumption to a greener tape that is made with plant-based adhesive and film.

In January 2013, our CEO formed the Sustainability Center of Excellence by appointing two Vice Presidents to the Center. One of the Vice Presidents focuses on developing and commercializing products which help our customers solve their sustainability challenges and the other focuses on ensuring sustainability within 3M operations and supply chain. Both Vice Presidents report to the Executive Vice President of 3M Supply Chain, who reports to the CEO. The formation of the Sustainability Center of Excellence demonstrates the Company's commitment to integrate innovation and sustainability into our products and operations for the benefit of our customers and our communities. The primary role of the Center is to develop strategy, set significant goals to track progress and drive sustainable actions throughout 3M. Sustainability will continue to be a vital focus as we work to truly advance every company, enhance every home, and improve every life.

As part of our sustainability efforts, we have joined the United Nations Global Compact on Human Rights — a policy initiative for businesses to demonstrate their commitment to ten principles in the areas of human rights, labor, environment, and anti-corruption. We will report annually on these corporate responsibility efforts in our Sustainability Report.

To learn more about our sustainability efforts, please view our 2013 Sustainability Report which is available on our Web site at www.3M.com under Investor Relations — Corporate Governance — "Social Responsibility."

Related Person Transaction Policy and Procedures

The Board of Directors has adopted a written Related Person Transaction Policy which is administered by the Nominating and Governance Committee. This Policy applies to any transaction or series of transactions in which the Company or a subsidiary is a participant, the amount involved exceeds $120,000, and a Related Person (as that term is defined in the Policy) has a direct or indirect material interest. Transactions that fall within this definition are referred to the Committee for approval, ratification, or other action. Based on its consideration of all of the relevant facts and circumstances, the Committee decides whether or not to approve a transaction and approves only those transactions that are in the best interests of the Company. In the course of its review and approval or ratification of a transaction, the Committee considers:

•

the nature of the Related Person's interest in the transaction;



•

the material terms of the transaction, including whether the transaction is on terms no less favorable than terms generally available to an unaffiliated third party under the same or similar circumstances;



•

the significance of the transaction to the Related Person;



•

the significance of the transaction to the Company;

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•

whether the transaction would impair the judgment of a director or executive officer to act in the best interest of the Company; and



•

any other matters the Committee deems appropriate.

Any Committee member who is a Related Person with respect to a transaction under review may not participate in the deliberations or vote respecting such approval or ratification, except that such a director may be counted in determining the presence of a quorum at a meeting at which the Committee considers the transaction.

Policy on Adoption of a Rights Plan

In 2002 and 2003, a 3M stockholder submitted a shareholder proposal to 3M regarding the approval process for adopting a stockholders' rights plan (also known as a "poison pill"). 3M does not have a rights plan and is not currently considering adopting one. The Board continues to believe, however, that there may be circumstances under which adoption of a rights plan would give the Board the negotiating power and leverage necessary to obtain the best result for 3M stockholders in the context of a takeover effort.

Following consideration of the favorable vote the stockholder proposal received and in light of this belief, the Board adopted and has reaffirmed a statement of policy on this topic. The Board's policy is that it will only adopt a rights plan if either (1) stockholders have approved adoption of the rights plan or (2) the Board (including a majority of the independent members of the Board), in its exercise of its fiduciary responsibilities, makes a determination that, under the circumstances existing at the time, it is in the best interests of 3M's stockholders to adopt a rights plan without the delay in adoption resulting from seeking stockholder approval.

The Board has directed the Nominating and Governance Committee to review this policy statement on an annual basis and to report to the Board on any recommendations it may have concerning the policy. The terms of the policy, as in effect, are included in 3M's published Corporate Governance Guidelines and its Proxy Statement.

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BOARD AND COMMITTEE INFORMATION

The Board currently has twelve directors and the following four committees: Audit, Compensation, Finance, and Nominating and Governance. On August 12, 2013, the Board of Directors elected Thomas "Tony" K. Brown as a director and appointed him as a member of the Audit and Finance Committees effective August 12, 2013. The membership during 2013 and the function of each committee are described below.

During 2013, the Board of Directors held six regularly scheduled meetings and one telephonic meeting. Overall attendance at Board and committee meetings was 98 percent. Eight directors attended 100 percent and four directors attended an average of approximately 93 percent of the meetings of the Board and Board committees on which they served in 2013.

The Company has a long-standing policy that directors are expected to attend the Annual Meeting of Stockholders unless extenuating circumstances prevent them from attending. All directors attended last year's Annual Meeting of Stockholders.

The Board and each committee conducted an evaluation of its performance in 2013.

X = Committee Member; * = Chair

Audit Committee

In 2013, the Audit Committee met eight times. The Committee assists the Board in its oversight of the integrity of the Company's financial statements, compliance with legal and regulatory requirements, the qualifications, independence, and performance of the Company's independent registered public accounting firm (the "Independent Accounting Firm"), the performance of the Company's internal auditing department, and furnishes a report for inclusion in the Company's Proxy Statement. In addition, the Committee:

•

Reviews the Company's annual audited and quarterly consolidated financial statements;



•

Reviews the Company's financial reporting process and disclosure and internal controls and procedures, including any major issues regarding accounting principles and financial statement presentation, and critical accounting policies to be used in the consolidated financial statements;



•

Reviews and discusses with management and the Independent Accounting Firm the Company's internal controls report and the Independent Accounting Firm's audit of internal controls over financial reporting;

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•

By delegation to the chair, reviews earnings press releases prior to issuance;



•

Appoints, oversees, and approves compensation of the Independent Accounting Firm;



•

Reviews with the Independent Accounting Firm the scope of the annual audit, including fees and staffing, and approves all audit and permissible non-audit services provided by the Independent Accounting Firm;



•

Reviews findings and recommendations of the Independent Accounting Firm and management's response to the recommendations of the Independent Accounting Firm;



•

Discusses policies with respect to risk assessment and risk management, the Company's major risk exposures, and the steps management has taken to monitor and mitigate such exposures;



•

Periodically obtains reports from the Company's senior internal auditing executive, who has direct reporting obligations to the Committee, on the annual audit plan, scope of work, and the results of internal audits;



•

Periodically obtains reports from the Company's Chief Compliance Officer, who has direct reporting obligations to the Committee, on compliance with the Company's Code of Conduct, and at least annually, on the implementation and effectiveness of the Company's compliance and ethics program;



•

Reviews with the Company's General Counsel legal matters that may have a material impact on the consolidated financial statements and any material reports or inquiries received from regulators or government agencies regarding compliance; and



•

Establishes procedures for (i) the receipt, retention, and treatment of complaints received by the Company regarding accounting, internal accounting controls, or auditing matters; and (ii) the confidential, anonymous submission by Company employees of concerns regarding questionable accounting or auditing matters and periodically review with the Chief Compliance Officer and Internal Audit these procedures and any significant complaints received.

The Board of Directors has determined that all of the Audit Committee members are "independent" and "financially literate" under the NYSE listing standards. The Board has also determined that the following Audit Committee members — Herbert L. Henkel (chair), Linda G. Alvarado, W. James Farrell, and Muhtar Kent — have "accounting or related financial management expertise" under the NYSE listing standards and are "audit committee financial experts" as that term is defined by applicable Securities and Exchange Commission regulations. The Audit Committee has adopted, and annually reviews, its charter setting forth its roles and responsibilities. The charter of the Audit Committee is available at www.3M.com under Investor Relations — Corporate Governance — Committee Charters.

Audit Committee Policy on Pre-Approval of Audit and Permissible Non-Audit Services of the Independent Accounting Firm

The Audit Committee is responsible for appointing and overseeing the work of the Independent Accounting Firm. The Audit Committee has established the following procedures for the pre-approval of all audit and permissible non-audit services provided by the Independent Accounting Firm.

Before engagement of the Independent Accounting Firm for the next year's audit, the Independent Accounting Firm will submit to the Audit Committee for approval a detailed description of services it expects to render to the Company during that year for each of the following categories of services:

•

Audit services include audit work performed in the preparation of consolidated financial statements, as well as work that generally only the Independent Accounting Firm can reasonably be expected to provide, including comfort letters, statutory audits, attest services, and consultation regarding financial accounting and/or reporting standards.

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•

Audit-related services are for assurance and related services that are traditionally performed by the Independent Accounting Firm, including due diligence related to mergers and acquisitions or dispositions, employee benefit plan audits, and special procedures required to meet certain regulatory requirements.



•

Tax services include all services performed by the Independent Accounting Firm's tax personnel except those services specifically related to the audit of the financial statements, and include fees in the areas of tax compliance, tax planning, and tax advice.



•

Other services are those services not captured in the other categories.

Before engagement, the Audit Committee pre-approves these services by category of service. The fees are budgeted and the Audit Committee requires the Independent Accounting Firm to report actual fees in comparison to the budget periodically throughout the year by category of service. During the year, circumstances may arise when it may become necessary to engage the Independent Accounting Firm for additional services not contemplated in the original pre-approval. In those instances, the Audit Committee requires specific pre-approval before engaging the Independent Accounting Firm.

The Audit Committee has delegated pre-approval authority to the chair of the Committee. The chair must report, for informational purposes only, any pre-approval decisions to the Audit Committee at its next scheduled meeting.

Fees of the Independent Accounting Firm

The following table represents fees for professional services rendered by PricewaterhouseCoopers LLP ("PwC") for the audit of the Company's consolidated financial statements for the years ended December 31, 2012 and 2013, and fees billed for other services rendered by PricewaterhouseCoopers LLP during those periods.

Audit and Non-Audit Fees ($ in millions)

In the above table, in accordance with SEC rules, "Audit" fees are fees that 3M paid to PwC for (i) the audit of 3M's annual financial statements included in the Annual Report on Form 10-K and review of financial statements included in the Quarterly Reports on Form 10-Q, (ii) the audit of 3M's internal control over financial reporting with the objective of obtaining reasonable assurance about whether effective internal control over financial reporting was maintained in all material respects, and (iii) work generally only the Independent Accounting Firm can reasonably be expected to provide, such as statutory audits, comfort letters, consents, and assistance with and review of documents filed with the Securities and Exchange Commission. The increase in audit fees is primarily due to incremental audit procedures performed in connection with the Company's implementation of an enterprise resource planning system and incremental foreign statutory audits. "Audit-related" fees principally related to employee benefit plan audits, internal control and system audits, agreed-upon procedures, financial due diligence, and other attest services. The increase in audit-related fees is primarily due to financial due diligence procedures. "Tax" fees consisted principally of tax compliance services and "All other" fees consisted of permissible services and licenses for accounting research software. The decrease in tax fees is primarily due to the timing of when certain international tax compliance services were incurred.

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Audit Committee Restrictions on Hiring Employees of the Independent Accounting Firm

The Audit Committee has adopted restrictions on the hiring by the Company of any PwC partner, director, manager, staff, reviewing actuary, reviewing tax professional, and any other persons having responsibility for providing audit assurance on any aspect of PwC's certification of the Company's financial statements. Audit assurance includes all work that results in the expression of an opinion on financial statements, including audits of statutory accounts.

AUDIT COMMITTEE REPORT

The Audit Committee oversees the Company's financial reporting process on behalf of the Board of Directors. The management of the Company is responsible for (i) the preparation of complete and accurate annual and quarterly consolidated financial statements ("financial statements") in accordance with generally accepted accounting principles in the United States, (ii) maintaining appropriate accounting and financial reporting principles and policies and internal controls designed to assure compliance with accounting standards and laws and regulations, and (iii) an assessment of the effectiveness of internal control over financial reporting. The Independent Accounting Firm is responsible for planning and conducting in accordance with the standards of the Public Company Accounting Oversight Board ("PCAOB") an audit of the Company's annual consolidated financial statements and a review of the Company's quarterly financial statements and expressing opinions on the Company's financial statements and internal control over financial reporting based on the integrated audits.

In this context, the Audit Committee has met and held discussions with management and the Independent Accounting Firm regarding the fair and complete presentation of the Company's results and the assessment of the Company's internal control over financial reporting. The Audit Committee has discussed significant accounting policies applied by the Company in its financial statements, as well as alternative treatments. Management has represented to the Audit Committee that the Company's consolidated financial statements were prepared in accordance with accounting principles generally accepted in the United States, and the Audit Committee has reviewed and discussed the consolidated financial statements with management and the Independent Accounting Firm. The Audit Committee has discussed with the Independent Accounting Firm matters required to be discussed pursuant to the PCAOB's Auditing Standards on Communications with Audit Committees, as currently in effect.

In addition, the Audit Committee has reviewed and discussed with the Independent Accounting Firm the auditor's independence from the Company and its management. As part of that review, the Audit Committee has received the written disclosures and the letter required by applicable requirements of the PCAOB regarding the Independent Accounting Firm's communications with the Audit Committee concerning independence, and the Audit Committee has discussed the Independent Accounting Firm's independence from the Company.

The Audit Committee also has considered whether the Independent Accounting Firm's provision of non-audit services to the Company is compatible with the auditor's independence. The Audit Committee has concluded that the Independent Accounting Firm is independent from the Company and its management.

The Audit Committee has discussed with the Company's Internal Audit Department and Independent Accounting Firm the overall scope of and plans for their respective audits. The Audit Committee meets with the Internal Auditor, Chief Compliance Officer, the General Counsel, and representatives of the Independent Accounting Firm in regular and executive sessions, to discuss the results of their examinations, the evaluations of the Company's internal controls, and the overall quality of the Company's financial reporting and compliance programs.

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In reliance on the reviews and discussions referred to above, the Audit Committee has recommended to the Board of Directors, and the Board has approved, that the audited financial statements be included in the Company's Annual Report on Form 10-K for the year ended December 31, 2013, for filing with the SEC.

Submitted by the Audit Committee

Herbert L. Henkel, Chair
Linda G. Alvarado
Thomas "Tony" K. Brown
W. James Farrell
Muhtar Kent

Compensation Committee

In 2013, the Compensation Committee met six times. The Committee reviews the Company's compensation practices and policies, annually reviews and approves (subject to ratification by the independent directors of the Board) the compensation for the CEO, annually reviews and approves the compensation for the other senior executives, evaluates CEO performance, reviews and discusses with management of the Company the Compensation Discussion and Analysis prepared in accordance with the Securities and Exchange Commission's disclosure rules for executive compensation, and furnishes a report for inclusion in the Company's Proxy Statement. In addition, the Committee:

•

Reviews disclosures in the Company's Proxy Statement regarding advisory votes on executive compensation and the frequency of such votes;



•

Approves the adoption, amendment, and termination of incentive compensation and deferred compensation programs for employees of the Company;



•

Approves, subject to ratification by the independent directors of the Board, employment agreements and severance arrangements for the CEO, as appropriate;



•

Approves employment agreements and severance arrangements for the senior executives of the Company (other than the CEO), as appropriate;



•

Interprets and supervises the administration of the Company's stock and long-term incentive compensation programs, and determines the employees who receive awards and the size of their awards under such programs;



•

Approves the adoption and amendment of Company guidelines covering ownership of Company common stock by executives, and annually reviews compliance with these guidelines;



•

Reviews and makes recommendations to the Board of Directors concerning the design of the pension and other postretirement benefit plans that have a material financial impact upon the Company;



•

Annually reviews a risk assessment of the Company's compensation policies and practices for its employees; and



•

Periodically reviews human resource issues relating to the Company's policies and practices with respect to workforce diversity and equal employment opportunities.

The Board of Directors has determined that all Compensation Committee members are "independent" under the NYSE listing standards, including the listing standards applicable to compensation committee members. The Board has also determined that each Compensation Committee member qualifies as a "Non-Employee Director" under Rule 16b-3 of the Securities Exchange Act of 1934 and that each member (except Robert S. Morrison due to his service in 2005 as

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interim CEO), qualifies as an "outside director" under Section 162(m) of the Internal Revenue Code. As a result, Mr. Morrison may participate in the discussion, but cannot vote on the Committee's decisions involving performance-based compensation. The charter of the Compensation Committee is available at www.3M.com under Investor Relations — Corporate Governance — Committee Charters. In compliance with the NYSE listing standards, the charter provides that the Compensation Committee has the authority to retain compensation consultants, counsel or other advisors as it deems appropriate, including the authority to approve such advisors' fees and retention terms. As discussed below under the heading "Compensation Discussion and Analysis," the Compensation Committee directly engaged and retained a compensation consultant in 2013 and determined, in accordance with the listing standards of the NYSE, that the consultant was independent of management under the NYSE's independence criteria.

Finance Committee

In 2013, the Finance Committee met five times. The Committee assists the Board with its oversight of the Company's financial structure, including its overall capital structure, sources and uses of funds, the Company's financial condition and capital strategy, and financial risk management. In addition, the Committee:

•

Reviews and recommends for approval by the Board the dividend policy and the declaration of dividends or other forms of distributions on the Company's stock, such as stock splits in the form of a stock dividend;



•

Reviews and recommends for approval by the Board the repurchase of the Company's stock;



•

Reviews and recommends for approval by the Board the Company's authorization limit for cumulative short- and long-term borrowings;



•

Reviews and recommends for approval by the Board the registration and issuance of the Company's debt or equity securities, except in the case of the issuance of debt or equity securities in connection with a merger or acquisition transaction which is presented to the Board;



•

Periodically reviews the Company's ratings and key credit metrics from the credit rating agencies;



•

Reviews and recommends for approval by the Board an annual capital expenditure budget and revisions to that budget;



•

Reviews and recommends for approval by the Board capital expenditures in excess of $75,000,000;



•

Periodically reviews the Company's global treasury and tax planning activities.



•

Reviews and evaluates any risks associated with the Company's use of or investment in financial products, including derivatives used to manage risk related to foreign currencies, commodity prices, and interest rates;



•

Periodically reviews and approves the Company's decision to enter into derivative swaps, including swaps exempt from an otherwise applicable clearing or trading mandate, and other governance matters related to derivatives trading;



•

Periodically reviews the Company's insurance coverage; and



•

Periodically reviews the funding, asset performance and strategies for the Company's pension and other benefit plans.

The Board of Directors has determined that all Finance Committee members are "independent" under the NYSE listing standards. The charter of the Finance Committee is available at www.3M.com under Investor Relations — Corporate Governance — Committee Charters.

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Nominating and Governance Committee

In 2013, the Nominating and Governance Committee met five times. The Committee establishes the Board Membership Criteria, assists the Board by identifying individuals qualified to become Board members, recommends to the Board matters of corporate governance, facilitates the annual review of the performance of the Board and its committees, and periodically reviews CEO and management succession plans. In 2013, the Committee recommended, and the Board approved, the addition of two new directors — Thomas "Tony" K. Brown and Muhtar Kent. In addition, the Committee:

•

Selects and recommends director candidates to the Board of Directors, in light of the Board Membership Criteria adopted by the Board, either to be submitted for election at the Annual Meeting or to fill any vacancies on the Board, including consideration of any stockholder nominees for director (submitted in accordance with the Company's Bylaws);



•

Reviews and makes recommendations to the Board of Directors concerning the composition and size of the Board and its committees, the board membership criteria, frequency of meetings, and recommends to the Board changes in compensation for nonemployee directors;



•

Reviews the Company's Corporate Governance Guidelines at least annually, and recommends any proposed changes to the Board for approval;



•

Develops and recommends to the Board standards to be applied in making determinations on the types of relationships that constitute material relationships between the Company and a director for purposes of determining director independence;



•

Reviews and approves or ratifies any transaction between the Company and any related person, which is required to be disclosed under the rules of the Securities and Exchange Commission;



•

Develops and recommends to the Board for its approval an annual self-assessment process of the Board and its committees and oversees the process;



•

Reviews periodically with the Chairman/CEO succession plans relating to positions held by elected corporate officers, and makes recommendations to the Board with respect to the selection of individuals to occupy these positions;



•

Periodically reviews the corporate contribution program (3Mgives) and the contribution activities of the 3M Foundation, which is funded by the Company; and



•

Periodically reviews the Company's positions and engagement on important public policy issues affecting its business, including the political contributions of 3M and its Political Action Committee.

The Board of Directors has determined that all Nominating and Governance Committee members are "independent" under the NYSE listing standards. The charter of the Nominating and Governance Committee is available at www.3M.com under Investor Relations — Corporate Governance — Committee Charters.

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DIRECTOR COMPENSATION AND STOCK OWNERSHIP GUIDELINES

The Nominating and Governance Committee periodically receives reports on the status of Board compensation in relation to other large U.S. companies and is responsible for recommending to the Board changes in compensation for nonemployee directors. In developing its recommendations, the Committee is guided by the following goals:

•

Compensation should fairly pay directors for work required in a company of 3M's size and scope;



•

A significant portion of the total compensation should be paid in common stock to align directors' interests with the long-term interests of stockholders; and



•

The structure of the compensation should be simple and transparent.

Periodically, at the request of the Committee, Frederic W. Cook & Co., Inc. conducts a survey of director compensation at other large U.S. companies and provides expert advisory support to the Committee on the compensation of nonemployee directors. Neither the Company nor the Nominating and Governance Committee has any arrangement with any other compensation consultant who has a role in determining or recommending the amount or form of director compensation. Nonemployee directors' compensation includes the following compensation elements:

Annual Compensation — In May 2013, the Nominating and Governance Committee considered a board compensation study prepared by Frederic W. Cook & Co., Inc. As a result of that study, the Committee recommended and the Board approved an increase of $15,000 in the annual compensation for nonemployee directors from $245,000 to $260,000, effective January 1, 2013. Of the $15,000 increase, $5,000 was allocated to an increase in the annual cash retainer (from $115,000 to $120,000) and $10,000 was allocated to an increase in the annual stock retainer (from $130,000 to $140,000). Approximately 46 percent of the annual compensation (or $120,000) is payable in cash in four quarterly installments and approximately 54 percent of the annual compensation (or $140,000) is payable in common stock after the Annual Meeting. In addition, the chairs of the Finance and Nominating and Governance Committees each receive an additional annual fee of $15,000, and the chairs of the Audit and Compensation Committees each receive an additional annual fee of $20,000. The additional annual fee payable to the Lead Director was increased from $25,000 to $30,000, effective January 1, 2013. There are no meeting fees. In lieu of the cash fees, a director may elect to receive common stock of the Company. Nonemployee directors may also voluntarily defer all or part of their annual cash fees or stock awards until they cease to be members of the Board.

Deferred Stock — For directors who have elected to defer their annual stock awards or annual cash fees into a common stock equivalents account ("Deferred Stock"), the Company credits their accounts with a number of 3M common stock equivalents (including fractional share equivalents) equal to the number of actual shares of 3M common stock which could have been purchased with such deferred amounts on the first day of the calendar quarter, using the closing price of 3M common stock on the NYSE on the last business day immediately preceding such date. In addition, on each payment date for dividends on 3M common stock, the Company credits to the directors' accounts a number of 3M common stock equivalents having a value equal to the dividend, determined by using the closing price of 3M common stock on the NYSE on the sixth business day preceding the dividend record date. The Deferred Stock is fully vested upon grant but does not have voting rights. Appropriate adjustments to the amount of Deferred Stock shall be made to the accounts for stock splits, stock dividends, merger, consolidation, payment of dividends other than in cash, and similar circumstances affecting 3M common stock. The Deferred Stock will be distributed in 3M common stock to nonemployee directors beginning on January 1 of the year following the year in which they leave the Board, either in a lump sum or in up to ten annual installments pursuant to their deferral elections.

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All Other Compensation — The column below showing "All Other Compensation" includes matching gifts. The nonemployee directors are eligible to participate in the Company's matching gift program on the same terms as 3M employees. Under this program, the 3M Foundation will match up to a total of $10,000 a year in contributions by the director to eligible institutions of higher education.

The total 2013 compensation of our nonemployee directors is shown in the following table:

Stock Ownership Guidelines — The Board requires that each director retain the stock portion (currently valued at $140,000) of the annual compensation issued on or after October 1, 2007, until the director leaves the Board. Information regarding accumulated stock and deferred stock units is set forth in the section entitled "Information on Stock Ownership of Directors and Executive Officers."

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PROPOSALS TO BE VOTED ON

PROPOSAL NO. 1

ELECTION OF THE NINE DIRECTORS IDENTIFIED IN THIS PROXY STATEMENT

At the 2014 Annual Meeting, nine directors are to be elected to hold office until the 2015 Annual Meeting of Stockholders and until their successors have been elected and qualified. All nominees are presently 3M directors who were elected by stockholders at the 2013 Annual Meeting, except for Thomas "Tony" K. Brown, who was elected to the Board in August 2013 and who is standing for election for the first time. The Nominating and Governance Committee, working with a third-party search firm, identified Mr. Brown and recommended him to the Board. We expect each nominee for election as a director to be able to serve if elected. If any nominee is not able to serve, proxies will be voted in favor of the remainder of those nominated and may be voted for substitute nominees, unless the Board chooses to reduce the number of directors serving on the Board. Each nominee elected as a director will continue in office until his or her successor has been elected and qualified, or until his or her earlier death, resignation, or retirement. W. James Farrell, Robert S. Morrison, and Aulana L. Peters are no longer eligible to stand for reelection as they have reached the mandatory retirement age under the Board's Corporate Governance Guidelines.

The Nominating and Governance Committee reviewed the Board Membership Criteria (described in the section of the Proxy Statement entitled "Director Nomination Process") and the specific experience, qualifications, attributes, and skills of each nominee, including membership(s) on the boards of directors of other public companies. The following pages contain biographical and other information about the nominees. Following each nominee's biographical information, we have provided information concerning the particular experience, qualifications, attributes, and skills that led the Nominating and Governance Committee and the Board to determine that each nominee should serve as a director. In addition, all of our directors serve or have served on boards and board committees (including as committee chairs) of other public companies, which the Board believes provides them with additional board leadership and governance experience, exposure to best practices, and substantial knowledge and skills that further enhance the functioning of our Board.

Nominees for Director:

		Linda G. Alvarado, 62, President and Chief Executive Officer, Alvarado Construction, Inc., a Denver-based commercial general contractor, construction management and development company. In 1976, Ms. Alvarado founded Alvarado Construction, Inc. and has overseen the growth of that enterprise as a commercial general contracting and design/build development firm conducting business across the United States and internationally. Director since : 2000 Other current directorships : Pitney Bowes, Inc. Other directorships in the past five years : Lennox International Inc., QWEST Communications International, Inc., and The Pepsi Bottling Group, Inc. Ms. Alvarado's leadership role and experiences in establishing and building successful businesses, including founding and serving as President and Chief Executive Officer of Alvarado Construction, Inc., President of Palo Alto, Inc., which owns and operates numerous YUM! Brands restaurants in several states, and co-owner of the Colorado Rockies Major League Baseball Club, her skills in operations, financial and audit matters, and her experiences as a director at the public companies listed above, qualify her to serve as a director of 3M.

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		Thomas "Tony" K. Brown , 57, Retired Group Vice President, Global Purchasing, Ford Motor Company, a global automotive industry leader . Mr. Brown served in various leadership capacities in global purchasing since joining Ford in 1999. In 2008, he became Ford's Group Vice President, Global Purchasing, with responsibility for approximately $90 billion of production and non-production procurement for Ford operations worldwide. He retired from Ford on August 1, 2013. From 1997 to 1999 he served in leadership positions at United Technologies Corporation, including its Vice President, Supply Management. From 1991 to 1997 he served as Executive Director, Purchasing and Transportation at QMS Inc. From 1976 to 1991 he served in various managerial roles at Digital Equipment Corporation. Director since : 2013 Other current directorships : ConAgra Foods, Inc. Mr. Brown's Bachelor of Business Administration from American International College in Springfield, Massachusetts, his leadership roles, and his knowledge of and extensive experiences in global purchasing, management, and supply chain at Ford Motor Company and other companies, qualify him to serve as a director of 3M.
		Vance D. Coffman, 69, Retired Chairman of the Board and Chief Executive Officer, Lockheed Martin Corporation, a high technology aerospace and defense company. Dr. Coffman served in various executive capacities at Lockheed Martin Corporation before becoming Chairman and Chief Executive Officer in 1998. He retired as Chief Executive Officer in 2004 and as Chairman of the Board in 2005. Director since : 2002 Other current directorships : Amgen Inc. (Lead Director) and Deere & Company Dr. Coffman's Bachelor of Science degree in Aerospace Engineering from Iowa State University, his Masters and Doctoral degrees in Aeronautics and Astronautics from Stanford University and his various leadership roles and experiences at Lockheed Martin, including serving as Chairman of the Board and Chief Executive Officer, his role in the integration of Lockheed and Martin Marietta Corporations, his understanding of the challenges of managing a complex global organization, the breadth of his experiences and skills in business and financial matters, and his experiences as a director at the public companies listed above, qualify him to serve as a director of 3M.
		Michael L. Eskew, 64, Retired Chairman of the Board and Chief Executive Officer, United Parcel Service, Inc., a provider of specialized transportation and logistics services. Mr. Eskew was appointed Executive Vice President in 1999 and Vice Chairman in 2000 before becoming Chairman and Chief Executive Officer of UPS in January 2002. He retired as Chairman of the Board and Chief Executive Officer at the end of 2007 but remained as a director of UPS. Director since : 2003 Other current directorships : United Parcel Service,  Inc., International Business Machines Corporation, and Eli Lilly and Company Mr. Eskew's degree in Industrial Engineering from Purdue University, his leadership roles and experiences at United Parcel Service, including serving as Chairman of the Board and Chief Executive Officer, his knowledge of and extensive experiences in global logistics, his skills in financial and audit matters, and his experiences as a director at the public companies listed above, qualify him to serve as a director of 3M.

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		Herbert L. Henkel, 65, Retired Chairman and Chief Executive Officer, Ingersoll-Rand plc, a manufacturer of industrial products and components. Mr. Henkel retired as Ingersoll-Rand's Chief Executive Officer, a position he held since October 1999, on February 4, 2010, and retired as Chairman of the Board on June 3, 2010. Mr. Henkel served as President and Chief Operating Officer of Ingersoll-Rand from April 1999 to October 1999. Mr. Henkel served in various leadership roles at Textron, Inc., including its President and Chief Operating Officer from 1998-1999. Director since : 2007 Other current directorships : The Allstate Corporation and C. R. Bard, Inc. (Lead Director) Other directorships in the past five years : Visteon Corporation Mr. Henkel's Bachelor's and Master's degrees in Engineering from Polytechnic University of New York and Masters of Business Administration from the Lubin School at Pace University, his leadership roles and experiences at Textron, Inc. and Ingersoll-Rand, including serving as Chairman of the Board and Chief Executive Officer, his knowledge of and extensive experiences in engineering, manufacturing, management, sales and marketing in a variety of industries, his skills in financial and audit matters, and his experiences as a director at the public companies listed above, qualify him to serve as a director of 3M.
		Muhtar Kent, 61, Chairman of the Board and Chief Executive Officer, The Coca-Cola Company, the world's largest beverage company. Mr. Kent has held the position of Chairman of the Board of The Coca-Cola Company since April 23, 2009, and the position of Chief Executive Officer since July 1, 2008. From December 2006 through June 2008, Mr. Kent served as President and Chief Operating Officer of The Coca-Cola Company. From January 2006 through December 2006, Mr. Kent served as President of Coca-Cola International and was elected Executive Vice President of The Coca-Cola Company in February 2006. From May 2005 through January 2006, he was President and Chief Operating Officer of The Coca-Cola Company's North Asia, Eurasia and Middle East Group, an organization serving a broad and diverse region that included China, Japan, and Russia. Mr. Kent is co-chair of The Consumer Goods Forum, a fellow of the Foreign Policy Association, a member of the Business Roundtable, a past Chairman of the U.S.-China Business Council, and Chairman Emeritus of the U.S. ASEAN Business Council. He was also appointed as a member of the Eminent Persons Group for ASEAN by President Obama and former Secretary of State Clinton. Director since: 2013 Mr. Kent's Bachelor of Science in Economics from Hull University, England, and Master of Science in Administrative Sciences from City University London, his extensive leadership roles and experiences at The Coca-Cola Company across multiple geographies, and his extensive international experience not only at The Coca-Cola Company but also in the organizations mentioned above, qualify him to serve as a director of 3M.
		Edward M. Liddy, 68, Partner, Clayton, Dubilier & Rice, LLC, a private equity investment firm . Mr. Liddy served as a partner of Clayton, Dubilier & Rice, LLC from April to September 2008 and rejoined the firm in January 2010. At the request of the Secretary of the U.S. Department of the Treasury, Mr. Liddy served as Interim Chairman and Chief Executive Officer of American International Group, Inc. (AIG), a global insurance and financial services holding company, from September 2008 until August 2009. Mr. Liddy served as Chairman of the Board of The Allstate Corporation, a personal lines insurer, from January 1999 to April 2008 and as its Chief Executive Officer from January 1999 to December 2006. Director since : 2000 Other current directorships : Abbott Laboratories, AbbVie, Inc., and The Boeing Company Mr. Liddy's undergraduate degree from Catholic University and his Masters of Business Administration from George Washington University, his leadership roles and experiences at Sears, Roebuck and Co. as Chief Financial Officer from 1992-1994 and at Allstate as Chairman of the Board and Chief Executive Officer, his knowledge of and extensive experiences in insurance, his expertise and knowledge of financial and audit matters, and his experiences as a director at the public companies listed above, qualify him to serve as a director of 3M.

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		Inge G. Thulin, 60 , Chairman of the Board, President and Chief Executive Officer of 3M Company. Mr. Thulin served as President and Chief Executive Officer of 3M Company from February 24, 2012, to May 8, 2012. Mr. Thulin served as the Company's Executive Vice President and Chief Operating Officer from May 2011 to February 2012, with responsibility for 3M's six business segments and International Operations. Prior to that, he was Executive Vice President of International Operations from 2004 to 2011. Under his leadership, international sales grew to nearly $20 billion and today represent two-thirds of 3M's sales. Mr. Thulin also has held numerous leadership positions in Asia Pacific, Europe and Middle East, and across multiple businesses. Director since: 2012 Other directorships in the past five years: The Toro Company Mr. Thulin's degrees in Marketing and Economics from Gothenburg University, his distinguished 3M career spanning more than three decades with leadership roles across multiple geographies and businesses, his in-depth understanding of 3M's global businesses, his expertise and knowledge of managing a large global corporation across multiple industries and markets, his skills in business and financial matters, and his experiences as a director at the public company listed above, qualify him to serve as a director of 3M.
		Robert J. Ulrich, 70 , Retired Chairman of the Board and Chief Executive Officer of Target Corporation, an operator of large-format general merchandise and food discount stores . Mr. Ulrich began his retailing career as a merchandising trainee in Target's department store division (Dayton Hudson) in 1967 and advanced through various management positions. He became Chairman and Chief Executive Officer of Target Stores in 1987 and was elected Chairman and Chief Executive Officer of Target Corporation in 1994. Mr. Ulrich retired as Target's Chief Executive Officer on May 1, 2008, and retired as Chairman of the Board on January 31, 2009. Director since: 2008 Mr. Ulrich's Bachelor of Arts degree from the University of Minnesota, his leadership roles and experiences at Dayton Hudson and Target Corporation, his knowledge of and extensive experiences in retailing and in building Target into the second-largest retailer in the United States, and his skills in business and financial matters, qualify him to serve as a director of 3M.

Recommendation of the Board

The Board of Directors unanimously recommends a vote "FOR" the election of these nominees as directors. Proxies solicited by the Board of Directors will be voted "FOR" these nominees unless a stockholder indicates otherwise in voting the proxy.

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PROPOSAL NO. 2

RATIFICATION OF THE APPOINTMENT OF

INDEPENDENT REGISTERED PUBLIC ACCOUNTING FIRM FOR 2014

The Audit Committee is directly responsible for the appointment, compensation (including approval of all fees), retention, and oversight of the Company's independent registered public accounting firm ("Independent Accounting Firm") retained to perform the audit of our financial statements and our internal control over financial reporting.

The Audit Committee has appointed PricewaterhouseCoopers LLP ("PwC") to serve as 3M's Independent Accounting Firm for 2014. PwC has been 3M's Independent Accounting Firm since 1998. Prior to that, 3M's Independent Accounting Firm was Coopers & Lybrand (until its merger with Price Waterhouse in 1998). In accordance with SEC rules and PwC policy, audit partners are subject to rotation requirements to limit the number of consecutive years an individual partner may provide service to our Company. For lead and concurring audit partners, the maximum number of consecutive years of service in that capacity is five years. The process for selection of the Company's lead audit partner pursuant to this rotation policy involves a meeting between the Chair of the Audit Committee and the candidate for the role, as well as discussion by the full Committee and with management.

The Audit Committee annually reviews PwC's independence and performance in connection with the Audit Committee's determination of whether to retain PwC or engage another firm as our Independent Accounting Firm. In the course of these reviews, the Audit Committee considers, among other things:

•

PwC's historical and recent performance on the 3M audit, including the results of a survey of those 3M employees with substantial contact with PwC throughout the year. The survey seeks input about PwC's quality of service provided, and the independence, objectivity, and professional skepticism demonstrated throughout the engagement by PwC and its audit team;



•

an analysis of PwC's known legal risks and significant proceedings;



•

external data relating to audit quality and performance, including recent Public Company Accounting Oversight Board ("PCAOB") reports on PwC and its peer firms;



•

PwC's independence;



•

the appropriateness of PwC's fees, on both an absolute basis and as compared to its peer firms;



•

PwC's tenure as our independent auditor and its familiarity with our global operations and businesses, accounting policies and practices and internal control over financial reporting; and



•

PwC's capability and expertise in handling the breadth and complexity of our global operations, including the Company's phased implementation of an enterprise resource planning system on a worldwide basis over the next several years.

Based on this evaluation, the Audit Committee believes that PwC is independent and that it is in the best interests of the Company and our stockholders to retain PwC to serve as our Independent Accounting Firm for 2014.

We are asking our stockholders to ratify the selection of PwC as our Independent Accounting Firm for 2014. Although ratification is not required by our Bylaws or otherwise, the Board is submitting the selection of PwC to our stockholders for ratification as a matter of good corporate governance. If the selection of PwC is not ratified, the Audit Committee will consider whether it is appropriate to select another Independent Accounting Firm. Even if the selection is ratified, the Audit Committee may in its discretion select a different Independent Accounting Firm at any time during the year if it determines that such a change would be in the best interests of the Company and our stockholders.

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PwC representatives are expected to attend the Annual Meeting where they will be available to respond to questions and, if they desire, to make a statement.

Recommendation of the Audit Committee

The Audit Committee of the Board of Directors unanimously recommends a vote "FOR" the ratification of the appointment of PricewaterhouseCoopers LLP as the Company's independent registered public accounting firm for 2014. Proxies solicited by the Board of Directors will be voted "FOR" ratification unless a stockholder indicates otherwise in voting the proxy.

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PROPOSAL NO. 3

ADVISORY APPROVAL OF EXECUTIVE COMPENSATION

As required by Section 14A of the Securities Exchange Act, the Company is providing its stockholders with the opportunity to approve, on an advisory basis, the compensation of its executives as described in this Proxy Statement. This is the fourth year that the Company is asking stockholders to vote on this type of proposal, known as a "say-on-pay" proposal. At the Annual Meeting of Stockholders held on May 14, 2013, approximately 96 percent of the shares that were voted on this issue voted to approve the compensation of the Company's Named Executive Officers as disclosed in last year's Proxy Statement.

Thus, the Company is submitting to stockholders the following resolution for their consideration and approval:

"RESOLVED, that the stockholders approve, on an advisory basis, the compensation of the Company's Named Executive Officers as disclosed in this Proxy Statement pursuant to the compensation disclosure rules of the Securities and Exchange Commission (including in the Compensation Discussion and Analysis, the accompanying compensation tables and related narrative)."

As described in the Compensation Discussion and Analysis portion of this Proxy Statement, 2013 was a very successful year for 3M. The Company delivered a strong financial performance, which impacted the annual and long-term incentive compensation earned by 3M's executives, including the Named Executive Officers. Three strategic levers enabled this strong financial performance. They are portfolio management, investing in innovation, and business transformation. The Company recently demonstrated its confidence in the continuation of this improved performance when it announced a 35 percent increase in its first-quarter 2014 dividend, the 56 ^th consecutive year of dividend increases. Both the strategic levers and the increased dividend are intended to enable even higher returns for the Company's stockholders, after 3M's common stock provided a total shareholder return (stock price appreciation plus dividends) of 54.4 percent during 2013.

While the Board of Directors and the Compensation Committee intend to carefully consider the results of the voting on this proposal when making future decisions regarding executive compensation, the vote is not binding on the Company or the Board and is advisory in nature.

Recommendation of the Board

The Board of Directors unanimously recommends a vote "FOR" this proposal for the reasons discussed above. Proxies solicited by the Board of Directors will be voted "FOR" this proposal unless a stockholder indicates otherwise in voting the proxy.

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PROPOSAL NO. 4

STOCKHOLDER PROPOSAL ON RIGHT TO ACT BY WRITTEN CONSENT

3M has received a stockholder proposal from James McRitchie, 9295 Yorkship Court, Elk Grove, California 95758, owner of 50 shares of 3M common stock (the "Proponent"). The Proponent has requested that the Company include the following proposal and supporting statement in its Proxy Statement for the Annual Meeting of Stockholders. The proposal may be voted on at the Annual Meeting only if properly presented by the Proponent or the Proponent's representative.

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Board's Statement Opposing the Proposal

After careful consideration, and for the following reasons, the Board believes that the proposal is not in the best interests of the Company or its stockholders, and the Board recommends voting "AGAINST" this proposal.

1.

The Board believes matters that are sufficiently important to be subject to a stockholder vote should be communicated to all stockholders who should be given the opportunity to discuss the proposed action and vote on it at an annual or special meeting. 3M's governing documents require actions subject to a stockholder vote be considered at a meeting of stockholders. This requirement assures that all stockholders receive advance notice of and have an opportunity to discuss the proposed action. This process helps ensure that all stockholders have time to consider the proposed action and all points of view before a vote. In contrast, the proposed action by written consent would allow critical actions to be approved without advance notice to all stockholders or the Company and without benefit of a discussion at a meeting of stockholders. We believe this proposal, if adopted, could disenfranchise many stockholders — particularly smaller stockholders — and may deprive them of these rights and protections while enabling other short-term or special interest investors to advance proposals that are not in the best interests of all stockholders. Further, actions by written consent could result in duplicative or contradictory written consents being circulated at the same time, disrupting management and confusing stockholders.



2.

The Company's stockholders have channels outside the Annual Meeting cycle to raise important matters. The Company's amended Bylaws already give stockholders holding at least 25 percent of the outstanding common shares the ability to call a special meeting. This ability to call a special meeting allows stockholders to initiate action without waiting for the Company's next Annual Meeting, making action by written consent unnecessary to facilitate prompt action by stockholders. A special meeting is preferable to action by written consent because a special meeting allows all stockholders to participate in the proposed action and allows the Board to make a considered recommendation regarding the action. Further, our senior executives periodically discuss stockholder proposals and other governance matters with major institutional stockholders. These mechanisms for stockholders to initiate action and express their views and concerns to the Company make the proposed written consent procedure unnecessary.



3.

The Company's current governance structure, as revised in recent years to incorporate best practices, already makes the Board responsive to stockholder concerns. 3M's Board of Directors has taken numerous actions (including those proposed by stockholders) to promote effective corporate governance and accountability to stockholders, including the following:



•

Declassifying the board — In 2006, the Board recommended and stockholders approved amendments to the Certificate of Incorporation to eliminate the classified board and provide for the annual election of all directors.



•

Lead Director — Since 2006, the Board has appointed a lead independent director, with responsibilities similar to those typically performed by an independent chairman, including the authority to call and preside over meetings of independent directors, act as a key liaison between the Chairman/CEO and the independent directors, approve schedules and agendas for Board meetings, and approve meeting materials for distribution to the Board.

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•

No supermajority voting — In 2007, the Board recommended and the stockholders approved amendments to the Certificate of Incorporation to eliminate the supermajority vote requirements.



•

Stockholders may call special meetings — In 2008, the Board amended the Bylaws to provide stockholders holding at least 25 percent of the outstanding common shares the ability to call a special meeting of stockholders.



•

Majority voting — In 2009, the Board amended the Bylaws to provide for majority voting for directors in uncontested elections.



•

3M's Board is primarily composed of independent directors — All but one member of 3M's Board are independent directors.

The Board believes in policies and governance practices that serve the interests of the Company and its stockholders as a whole. Adoption of this proposal would not serve those purposes.

Recommendation of the Board

The Board of Directors unanimously recommends a vote "AGAINST" this proposal for the reasons discussed above. Proxies solicited by the Board of Directors will be voted "AGAINST" this proposal unless a stockholder indicates otherwise in voting the proxy.

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SECURITY OWNERSHIP OF MANAGEMENT

The following table includes all 3M stock-based holdings, as of February 28, 2014, of the directors and the Named Executive Officers set forth in the Summary Compensation Table, and the directors and executive officers as a group.

Common Stock and Total Stock-Based Holdings

FOOTNOTES TO COMMON STOCK AND TOTAL STOCK-BASED HOLDINGS TABLE

(1) This column lists beneficial ownership of 3M common stock as calculated under Securities and Exchange Commission rules. Unless otherwise noted, voting power and investment power in the shares are exercisable solely by the named person, and none of the shares are pledged as security by the named person. In accordance with Securities and Exchange Commission rules, this column also includes shares that may be acquired pursuant to stock options that are or will be exercisable within 60 days of February 28, 2014, as follows: Mr. Thulin (574,686), Mr. Meline (118,180), Mr. Sauer (331,702), Mr. Shin (369,657), Mr. Fong (9,754), and Mr. Morrison (92,632). Mr. Morrison's options were granted

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during his service as interim CEO from June 30 to December 6, 2005. This column includes the following shares over which the identified director has shared voting and investment power through family trusts or joint accounts: Mr. Morrison (3,934) and Mrs. Peters (5,370).

(2) This column reflects restricted stock units that generally vest over a three- to five-year period, assuming continued employment until each vesting date (or until the individual retires from the Company, in some cases). The executive officers do not have voting power with respect to the shares listed in this column.

(3) This column reflects shares earned by the directors as a result of their service on the Board of Directors, the payout of which has been deferred until following the termination of their membership on the Board of Directors. This column also includes the following shares of the Company's common stock which the executive officers are entitled to receive following their retirement from the Company as a result of their election to defer the payout of their 2010 and/or 2011 performance share awards under the 2008 Long-Term Incentive Plan: Mr. Meline (19,912) and All Directors and Executive Officers as a Group (32,730). Neither the directors nor the executive officers have voting power with respect to the shares listed in this column.

(4) This column shows the individual's total 3M stock-based holdings, including the securities shown in the "Stock" column (as described in note 1), in the "Restricted Stock Units" column (as described in note 2), and in the "Deferred Stock" column (as described in note 3).

(5) Each director and executive officer individually, and All Directors and Executive Officers as a Group, beneficially owned less than one percent of the outstanding common stock of the Company.

SECURITY OWNERSHIP OF CERTAIN BENEFICIAL OWNERS

The following table sets forth information regarding beneficial owners of more than 5 percent of the outstanding shares of 3M common stock.

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SECTION 16(a) BENEFICIAL OWNERSHIP REPORTING COMPLIANCE

Section 16(a) of the Securities Exchange Act of 1934 requires our directors and executive officers, and any person owning more than 10 percent of the outstanding shares of 3M common stock, to file with the Securities and Exchange Commission reports regarding their ownership and changes in their ownership of our stock. As a practical matter, 3M assists its directors and executive officers by monitoring transactions and completing and filing Section 16 reports on their behalf. 3M believes that during 2013, its directors and executive officers complied with all Section 16(a) filing requirements. In making this statement, 3M has relied upon examination of copies of Forms 3, 4, and 5 and the written representations of its directors and executive officers.

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EXECUTIVE COMPENSATION

Compensation Discussion and Analysis

Executive Summary

This Compensation Discussion and Analysis describes 3M's executive compensation program, explains how 3M's Compensation Committee oversees and implements this program, and reviews the 2013 compensation of the Named Executive Officers whose compensation is disclosed in the tables that follow this portion of the Proxy Statement. For 2013, 3M's Named Executive Officers (as determined according to the applicable regulations of the Securities and Exchange Commission) were:

For 3M, 2013 was a very successful year. The Company delivered a strong financial performance, which impacted the annual and long-term incentive compensation earned by 3M's executives, including the Named Executive Officers. Highlights of the year included:

•

Sales of nearly $31 billion, an increase of 3.2 percent from 2012. Organic Sales Volume Growth, which compares 3M's growth to the growth of the worldwide Industrial Production Index (one of three metrics applied in determining the payout on performance shares awarded to 3M executives as part of their long-term incentive compensation), was 0.6 percent, up from -0.6 percent in 2012.



•

Earnings of $6.72 per share, an increase of 6.3 percent from 2012. 3M's Economic Profit, a key metric in determining the amount of annual incentive compensation earned by the Company's executives, increased by 2.3 percent from 2012, to a total of $2.407 billion.



•

Sales from new products, as measured by the New Product Vitality Index (the second of three metrics applied in determining the payout on performance shares awarded to 3M executives as part of their long-term incentive compensation), remained at 33 percent, the same as in 2012.



•

Return on Invested Capital (the third of three metrics applied in determining the payout on performance shares awarded to 3M executives as part of their long-term incentive compensation) remained at 20 percent, the same as in 2012.

Three strategic levers enabled this strong financial performance. They are portfolio management, investing in innovation, and business transformation. The Company recently demonstrated its confidence in the continuation of this improved performance when it announced a 35 percent increase in its first-quarter 2014 dividend, the 56 ^th consecutive year of dividend increases. Both the strategic levers and the increased dividend are intended to enable even higher returns for the Company's stockholders, after an outstanding year in 2013.

3M's common stock provided a total shareholder return (stock price appreciation plus dividends) of 54.4 percent during 2013. As reflected in the following table, 3M's stock performance (total shareholder return of 22.7 percent over the five years ending on December 31, 2013) continues to compare favorably with the stock performance of the peer companies included in the Company's executive compensation peer group (for which the median total shareholder return over the same five-year period was 21.7 percent).

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Factors Creating Alignment between Pay and Performance and Balancing Risk

3M's executive compensation program is designed to maintain a strong alignment between corporate performance and executive compensation by tying incentive compensation to the achievement of performance metrics that increase the Company's long-term value. The incentive compensation portion of the program rewards sustainable performance while also protecting the Company and its stockholders from inappropriate risk-taking and conflicts between the interests of the executives and the interests of the Company and its stockholders. Highlights of the program include:

•

A large portion of each executive's Total Direct Compensation (cash plus long-term incentives) is performance-based, varying from 88 percent for Chief Executive Officer Inge Thulin to a range of 71-83 percent for the other Named Executive Officers;



•

The incentive compensation opportunities provided to the Company's executives are based on multiple performance-based metrics, which are focused primarily on growth in revenue and earnings, increase in 3M's stock price and the efficient use of capital; and



•

Stock ownership guidelines that require covered executives to own amounts of Company stock having a value exceeding a specified multiple of their base salary.

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Compensation Best Practices

3M's executive compensation program incorporates and is administered according to the following best practices:

•

The program is controlled by a Compensation Committee comprised of experienced and independent individuals, assisted by an independent compensation consultant who provides no other services to the Company or 3M management besides independent advisory support to the Nominating and Governance Committee on the compensation of the Company's nonemployee directors.



•

The Board of Directors has adopted a comprehensive clawback policy which enables the Company to recover overpayments of incentive compensation if it is required to make a material restatement of its financial statements.



•

The Company has robust stock ownership guidelines which apply to all executive officers of the Company.



•

The Company does not have employment, severance, or change in control agreements or arrangements with any of its senior executives, including its Chief Executive Officer.



•

The Company does not have arrangements providing for the payment of excise tax gross-ups in the event of a change in control of the Company.



•

3M limits the number and amount of executive perquisites, and does not provide tax gross-ups on any of these perquisites.



•

Equity awards granted under the Long-Term Incentive Plan since 2010 have a "double trigger" accelerated vesting provision in the event of a change in control of the Company, meaning that vesting is accelerated only if an individual's employment is terminated in a qualifying termination within 18 months following the change in control.



•

3M prohibits the hedging or pledging of 3M common stock by its executive officers.



•

Except for adjustments made in connection with a stock split or similar circumstances, 3M's stock plans prohibit the repricing of stock options granted thereunder without the prior approval of 3M stockholders.

Significant Compensation Actions During the Past Year

During 2013, 3M and the Committee made the following decisions and took the following actions with respect to the Company's executive compensation program:

•

Amended the Long-Term Incentive Plan to provide for the forfeiture of equity incentive awards in situations where a covered executive breaches his or her confidentiality, assignment of rights to inventions, non-compete or non-solicitation obligations to 3M; and



•

Amended the stock ownership guidelines applicable to all Section 16 officers of the Company to: (1) provide for recalculation of the minimum share ownership requirements every three years, beginning on December 31, 2013, using each covered executive's base salary and the closing stock price on the recalculation date, and (2) require each covered executive whose share ownership requirement increases as a result of a recalculation to attain the required level of ownership within three years (or, if longer, the balance of the executive's initial five-year period).

Say on Pay Advisory Approval of Executive Compensation

As required by Section 14A of the Securities Exchange Act, in 2013 the Company conducted an annual advisory vote of stockholders with respect to the compensation of its Named Executive Officers.

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At the Company's Annual Meeting of Stockholders held on May 14, 2013, approximately 96 percent of the shares that were voted on this item approved the compensation of the Company's Named Executive Officers as disclosed in the 2013 Proxy Statement. While the approval was advisory in nature, the Committee has taken note of this very strong stockholder support and views the outcome as confirmation that stockholders generally believe that the pay of the Named Executive Officers is appropriately aligned with their performance and the performance of the Company as well as the interests of 3M's stockholders. As a consequence, the results of this vote have not caused the Committee to make any changes in either the executive compensation program or the compensation of any Named Executive Officer.

Principles of 3M's Executive Compensation Program

3M believes that the compensation of its executives should be closely tied to the performance and growth of the Company, so that their interests are aligned with the interests of long-term 3M stockholders. Consistent with this philosophy, the following core principles provide a framework for the Company's executive compensation program:

•

Total Direct Compensation should be competitive to attract the best talent to 3M, motivate executives to perform at their highest levels, reward individual contributions that improve the Company's ability to deliver outstanding performance, and retain those executives with the leadership abilities and skills necessary for building long-term stockholder value;



•

The portion of Total Direct Compensation that is performance-based (or varies with performance) and is therefore at risk should increase with the level of an individual's responsibility;



•

The program should balance incentives for delivering outstanding long-term, sustainable performance and the potential for encouraging inappropriate risk-taking;



•

The metrics and targets for earning performance-based incentives should be consistent with increasing stockholder value over the long term; and



•

Executives are most effectively motivated to build long-term stockholder value when a significant portion of their personal net worth is held in 3M stock.

Terms

This Compensation Discussion and Analysis uses the following terms when discussing executive compensation of the Company:

•

"Adjusted Net Income" means the net income of 3M as reported in its Consolidated Statement of Income, as adjusted to exclude special items.



•

"AIP" means the broad-based Annual Incentive Plan by which the Company provides annual incentive compensation to approximately 30,000 eligible employees.



•

"Benchmarking Groups" means both the survey comparator group and 3M's executive compensation peer group of 19 companies, as described in the "Benchmarking" section of this CD&A.



•

"Committee" means the Compensation Committee of the Board of Directors of 3M Company.



•

"Economic Profit" means the operating income of 3M (as reported in its Consolidated Statement of Income) or a business unit, plus interest income and minus income taxes, adjusted to exclude special items and the impact of acquisitions or divestitures in the year each acquisition or divestiture is completed (unless such acquisition or divestiture is included in the operating plan for the business unit), less a charge (10 percent in 2013) for the capital used to generate such operating income. 3M Economic Profit is calculated using total Company capital (total assets,

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minus total liabilities other than debt, as reported in its Consolidated Balance Sheet), while the Economic Profit of a business unit is calculated using only accounts receivable and inventories of such business unit as capital.

•

"Executive Plan" means the Executive Annual Incentive Plan by which the Company provides annual incentive compensation to the Named Executive Officers as well other identified executives.



•

"Local Currency Sales" means the net sales of 3M (as reported in its Consolidated Statement of Income) or a business unit, in local currency, adjusted to exclude the impact of acquisitions or divestitures in the year each acquisition or divestiture is completed (unless such acquisition or divestiture is included in the operating plan for the business unit).



•

"New Product Vitality Index" means the percentage of the Company's total sales derived from products introduced within the last five years.



•

"Organic Sales Volume Growth" means the percentage amount by which the percentage increase or decrease in 3M's net sales (as reported in its Consolidated Statement of Income) for a year as compared to the previous year, adjusted to exclude the sales attributable to acquisitions or divestitures for the 12 months following the date each acquisition or divestiture is completed, and to exclude price and currency effects, exceeds worldwide real sales growth as reflected in the worldwide Industrial Production Index, as published by Global Insight.



•

"Return on Invested Capital" means the operating income of 3M (as reported in its Consolidated Statement of Income), plus interest income and minus income taxes, adjusted to exclude special items and the impact of acquisitions or divestitures in the year each acquisition or divestiture is completed, divided by the average quarterly operating capital of the Company (total assets, minus total liabilities other than debt, as reported in its Consolidated Balance Sheet).



•

"Total Cash Compensation" means the total of an individual's base salary and annual incentive compensation.



•

"Total Direct Compensation" means the total of an individual's Total Cash Compensation plus the grant value of their annual long-term incentive compensation awards (which is based on their grant date fair value as measured under accounting standards).

Benchmarking

In order to provide competitive Total Direct Compensation, 3M annually surveys the executive compensation practices of a large group of comparator companies (approximately 170, although the number and identity of the companies may vary from year to year). Survey data is statistically regressed to recognize the different sizes of the comparator companies (based on annual revenues) as compared to the size of 3M. The survey data is obtained from three consulting firms (Aon Hewitt, Frederic W. Cook & Co., Inc., and Towers Watson). The survey comparator group consists of companies in the Standard & Poor's 500 Index (excluding financial services companies) and/or other companies with annual revenue exceeding $20 billion that participate in the three consultants' executive compensation surveys. By using survey data covering a large number of comparator companies, 3M is able to conduct a rigorous benchmarking process with more complete and reliable data for each executive position benchmarked. The Committee does not review the identity of the companies in this survey comparator group.

In addition, Aon Hewitt and Frederic W. Cook & Co., Inc. provide pay data and information on the executive compensation practices at the companies in 3M's executive compensation peer group. This pay data is used by the Committee to assess the reasonableness of the benchmarking results for each executive position benchmarked, helping to ensure that the Company's compensation objectives are

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being met. 3M's executive compensation peer group consists of the following 19 companies, as recommended by the Committee's independent compensation consultant and approved by the Committee:

The companies in this executive compensation peer group were selected because (1) their performance is monitored regularly by the same market analysts who monitor the performance of 3M (investment peers), and/or (2) they meet criteria based on similarity of their business and pay models, market capitalization (based on an eight-quarter rolling average), and annual revenues.

How the Committee Uses this Benchmarking Information

The Committee considers the pay data from the Benchmarking Groups when determining each executive's Total Direct Compensation. For executives whose performance meets the Company's expectations, the Committee aims to provide them with Total Cash Compensation that is at or very close to the median of the corresponding compensation paid to executives in the Benchmarking Groups, and with long-term incentive compensation delivered through annual grants having values that are within a range of 80 to 120 percent of the median of the corresponding grant values provided to executives in the Benchmarking Groups. Executives whose performance consistently exceeds the Company's expectations may receive Total Cash Compensation of 120 to 125 percent of the median of the corresponding compensation paid to executives in the Benchmarking Groups. Executives whose performance far exceeds the Company's expectations may also receive annual long-term incentive compensation grants having values that are within a range of 125 to 160 percent of the median of the corresponding grant values provided to executives in the Benchmarking Groups.

The Committee also uses information on the executive compensation practices at companies in the executive compensation peer group when considering design changes to the Company's executive compensation program. Overall, the Company believes that use of this information from the Benchmarking Groups enables the Committee to create better alignment between executive pay and performance and to help ensure that 3M can attract and retain high-performing executive leaders.

Role of the Compensation Committee and its Advisors

3M provides compensation to its executives to recognize their contributions to the success of its business and reward them for delivering performance that meets the growth, profitability, and other objectives of the Company. All elements of this compensation are determined by the Committee, which is composed solely of independent nonemployee directors. In addition, the Committee's decisions concerning the compensation of 3M's Chief Executive Officer are subject to ratification by all of the independent members of the Board of Directors.

The Committee regularly reviews the design of and risks associated with the Company's executive compensation program and, with the assistance of its independent compensation consultant, makes decisions concerning changes in the executive compensation program when appropriate.

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During 2013, the Committee was assisted by its independent compensation consultant, George B. Paulin of Frederic W. Cook & Co., Inc. In addition to participating in the meetings of the Committee, Mr. Paulin provides the Committee with advice regarding the Company's executive salary structure, annual and long-term incentive compensation plans, compensation-related risks, and other executive pay policies. He also provides expert knowledge of marketplace trends and best practices relating to executive compensation practices and competitive pay levels. Mr. Paulin and his firm provide no other services to the Company or 3M management, with the exception of independent advisory support to the Nominating and Governance Committee on the compensation of 3M's nonemployee directors so that valuation methodologies and peer groups are consistent with those used for executives and other employees. During the year the Committee conducted an evaluation of the independence of Mr. Paulin and his firm considering the relevant regulations of the Securities and Exchange Commission and the listing standards of the New York Stock Exchange, and it concluded that the services performed by Mr. Paulin and his firm raised no conflicts of interest.

3M's executive officers assist the Committee with the process of determining the compensation of the Company's executives. In particular, Mr. Thulin, assisted by 3M's Senior Vice President, Human Resources, performs an annual performance evaluation of each of 3M's senior executives whose compensation is determined by the Committee. The results of these annual performance evaluations form the basis for Mr. Thulin's recommendations to the Committee as to the annual merit base salary and target annual incentive compensation increases for such senior executives, as well as the size of their annual long-term incentive compensation awards. The Committee discusses these recommendations with Mr. Thulin at its meetings prior to making its decisions on any change to an executive's annual base salary or target annual incentive compensation or any long-term incentive compensation awards.

The Committee reviews and approves annual performance goals and objectives for 3M's Chief Executive Officer. Acting through its Chairman, the Committee also conducts and discusses with the independent members of the Board of Directors an annual evaluation of the Chief Executive Officer's performance against such goals and objectives. Finally, the Committee, assisted by its independent compensation consultant, annually reviews and approves (based on this annual evaluation), subject to ratification by the independent members of the Board of Directors, the compensation of the Chief Executive Officer.

Elements of the Compensation Program

The compensation program for 3M's executives consists of the following elements:

•

base salary;



•

short-term cash incentive in the form of an annual performance-based award opportunity; and



•

long-term equity incentives in the form of annual awards of performance shares and stock options, and in some years, grants of restricted stock or restricted stock units.

3M's executives also participate in various benefit plans made available to most of 3M's U.S. employees, are eligible to participate in three deferred compensation plans (which enable them to save for retirement or other financial planning purposes), and receive certain other benefits, each of which is described in the All Other Compensation Table. The entire program applied to approximately 115 executives during 2013, including all of the Named Executive Officers.

The following table shows how the 2013 Total Direct Compensation of each Named Executive Officer was apportioned among these elements, and how these elements relate to the strategic business goals of the Company. This table also reflects the relative balance among the elements as well as the alignment of these executives' compensation with the goal of creating long-term value for the Company and its stockholders.

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Base Salary

3M pays each of its executives a base salary in cash on a monthly basis. The amount of this base salary is reviewed annually, and does not vary with the performance of the Company. Base salaries are designed to compensate the executives for their normal day-to-day responsibilities, and it is the only component of their compensation that is considered to be fixed rather than variable in nature.

Annual Incentive

3M provides its executives with annual incentive compensation through plans that are designed to align a significant portion of their Total Cash Compensation with the financial performance of the Company and its business units. Each executive is assigned a target amount of annual incentive compensation as part of his or her Total Cash Compensation, but the amount of annual incentive compensation actually paid depends on the performance of 3M and its relevant business units as well as their individual performance. For Mr. Thulin, annual incentive compensation represented 61 percent of his target Total Cash Compensation for 2013. For 3M's other Named Executive Officers, annual incentive compensation represented from 43 percent to 50 percent of their target Total Cash Compensation for 2013.

3M's AIP offers eligible employees the opportunity to earn short-term incentive compensation based on three performance metrics, which are weighted as indicated:

•

Local Currency Sales (of 3M or a business unit, as applicable) vs. plan for the current year (50 percent);



•

Economic Profit (of 3M or a business unit, as applicable) vs. plan for the current year (30 percent); and



•

3M Economic Profit vs. the prior year (20 percent).

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The amount actually paid to an eligible employee for a particular year may range from 0 percent to 300 percent ¹ of the employee's target amount for that year, although the Committee has established a practice whereby any portion of an employee's annual incentive compensation payout that exceeds 200 percent of the employee's target amount is paid in the form of 3M restricted stock units that vest three years following the end of the year in which the compensation was earned, assuming continued employment. The amount of annual incentive compensation actually paid to an eligible employee may be increased by up to 30 percent or be reduced by up to 100 percent based on the employee's individual performance during that year. Individual performance takes into account both quantitative (financial results, for example) and qualitative (market and economic circumstances, for example) factors. In no event, however, may the total amount paid to an eligible employee exceed 300 percent of the employee's target amount for the year.

While the annual incentive compensation earned by most 3M executives is determined under the AIP, the annual incentive compensation earned by 3M's Named Executive Officers, as well as the other senior executives whose compensation is decided by the Committee, is determined under the Executive Plan approved by 3M's stockholders at the 2007 Annual Meeting. A total of 19 3M senior executives participated in this Executive Plan during 2013. This Executive Plan, which is intended to provide compensation that is exempt from the $1 million annual deduction limit of Section 162(m) of the Internal Revenue Code, provides performance-based compensation for which the performance goal is the Company's Adjusted Net Income.

The Executive Plan does provide the Committee with discretion to determine the amount of annual incentive compensation paid to 3M's Named Executive Officers and its other senior executives. The Executive Plan establishes a maximum amount of annual incentive compensation that may be earned by each covered executive for a year (a percentage of the Company's Adjusted Net Income for such year) and then the Committee utilizes this discretion to pay each covered executive less than this maximum amount based on such factors as it deems relevant. Since the Executive Plan was first adopted in 2007, the Committee has rarely used this discretion to pay a covered executive anything more or less than the same amount such executive would have received had he or she been participating in the broad-based AIP (including the individual performance multiplier).

In determining the amount of annual incentive compensation paid to a covered executive, the executive's individual performance is considered based upon the annual performance evaluation that Mr. Thulin, assisted by 3M's Senior Vice President, Human Resources, does for each covered executive (other than himself) and the annual performance evaluation that the Compensation Committee acting through its Chairman does for Mr. Thulin. These performance evaluations are done according to 3M's overall performance assessment and management processes, which involve setting annual financial and non-financial (e.g., commitment to diversity) goals and objectives for each individual and then assessing the individual's overall performance against these goals and objectives at the end of the year.

Long-term Incentives

3M provides long-term incentive compensation to its executives through the Long-Term Incentive Plan approved by 3M's stockholders at the 2008 Annual Meeting. This is a typical omnibus-type plan that authorizes the Committee to grant stock options, restricted stock, restricted stock units, stock appreciation rights, performance cash, performance shares, and other stock awards to management employees of the Company. The Company provides its executives with this long-term incentive compensation based on 3M common stock in order to effectively motivate such executives to build long-term stockholder value.

¹

While the AIP permits payment of up to 300 percent of an employee's target amount, the actual payouts (before adjustment for individual performance) for those employees whose compensation is determined by the performance of the same large, diversified businesses as the Company's Named Executive Officers has remained fairly close to 100 percent over the past three years (between 88 percent and 108 percent).

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Benefits and Perquisites

3M's executives generally participate in the same health care, disability, life insurance, pension, and 401(k) benefit plans available to most of the Company's U.S. employees.

Executives also receive a limited number of additional benefits and perquisites described in more detail in the All Other Compensation Table of this Proxy Statement. These additional benefits and perquisites are provided for the convenience (financial planning assistance, for example), financial security (retirement contributions and premiums for additional life insurance coverage, for example), or personal security (travel on corporate aircraft and home security equipment/monitoring, for example) of the executives. No tax gross-ups are provided on any of these additional benefits and perquisites.

How 3M Determined the 2013 Compensation of the Named Executive Officers

All amounts were determined by the Committee, assisted by its independent compensation consultant, with the input of Mr. Thulin (other than with respect to his own compensation). This input included:

•

Mr. Thulin's recommendations based on the results of his most recent annual performance evaluations of the other Named Executive Officers;



•

The compensation information from the companies in the Benchmarking Groups; and



•

A tally sheet comparing the amounts of compensation actually received by the Company's Named Executive Officers to the amounts reported in its annual Proxy Statement as well as the compensation that would be owed to such individuals in the event of the termination of their employment. This tally sheet helps the Committee better understand the Company's potential obligations to the Named Executive Officers following the termination of their employment, as well as assessing the risk of any individual leaving the Company prematurely because the Company is not providing sufficient retention incentives.

Differences in the amounts of compensation provided to 3M's Named Executive Officers reflect a variety of factors, including job responsibilities, the market pay for executives performing similar responsibilities (as measured by the pay information obtained from companies in the Benchmarking Groups), experience and time in their current positions, internal pay equity, and individual performance. Overall, the Committee aims to provide the Named Executive Officers with Total Cash Compensation that is at or very close to the median value of the corresponding compensation provided to executives with similar responsibilities at companies in the Benchmarking Groups.

However, the Committee adjusts the stock option portion of the long-term incentive compensation provided to the Named Executive Officers to reflect each individual's actual individual performance during the previous year.

2013 Base Salary and Target Total Cash Compensation

Changes in the base salaries and target Total Cash Compensation of the Named Executive Officers are considered annually by the Committee. Any adjustments are made after considering the most recent compensation data for executives with similar responsibilities at companies in the Benchmarking Groups, each individual's position in the salary range for his or her position, and the individual's performance during the preceding annual period.

In January 2013, the Committee approved the following increases in the base salaries and target Total Cash Compensation of Mr. Sauer and Mr. Shin. Mr. Sauer's increase was designed to recognize a recent change in his job responsibilities, and to better align his compensation with that of the market for his new position. Mr. Shin's increase was designed to reduce a significant gap that had arisen between

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his compensation and the median compensation paid for executives serving in similar positions at companies in the Benchmarking Groups.

In February 2013, the Committee approved (and in the case of Mr. Thulin, the independent members of the Board of Directors ratified) the following increases in the base salaries and target Total Cash Compensation of the Named Executive Officers following completion of their annual performance evaluations:

As a result of these increases, the target Total Cash Compensation of these Named Executive Officers ranged from 95 to 106 percent of the median value of the corresponding compensation provided to executives with similar responsibilities at companies in the Benchmarking Groups.

2013 Annual Incentive

During 2013, the Committee provided the Named Executive Officers with the opportunity to earn short-term incentive compensation under the Executive Plan. Each Named Executive Officer's target annual incentive for the year was equal to the difference between his or her target Total Cash Compensation and annual base salary. Each of the Named Executive Officers was assigned to an appropriate business unit (the entire Company, in some cases) established under the AIP for the purpose of measuring business performance during 2013 and converting that performance into a payout based on the AIP's formulas. While none of the Named Executive Officers are covered by the AIP, the Committee rarely uses its discretion under the Executive Plan to pay the covered executives anything more or less than the same amount such executive would have received had he or she been participating in the AIP (including the individual performance multiplier).

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The amounts payable under the AIP for 2013 were based on the following performance results for the Company and, as applicable, the respective business units to which the Named Executive Officers were assigned:

Since the Company satisfied the Executive Plan's performance objective by earning Adjusted Net Income of $4.659 billion for 2013, the plan authorized the Committee to approve payments of annual incentive compensation to each Named Executive Officer equal to one-quarter of one percent of such Adjusted Net Income ($11,647,500). As explained above, however, the Executive Plan authorizes the Committee to pay each covered executive less than this maximum amount based on such factors as it deems relevant. Consistent with its past practice, the Committee utilized this discretion to pay each Named Executive Officer (other than Mr. Shin) the same amount such executive would have received had he been participating in the broad-based AIP (including the individual performance multiplier). The Committee decided to increase the amount of Mr. Shin's AIP payout by $30,000 to bring his cash incentive compensation closer to that of executives leading the international operations of companies in the Benchmarking Groups. As a result, the Committee approved (and in the case of Mr. Thulin, the independent members of the Board of Directors ratified) payment of the following amounts of annual incentive compensation under the Executive Plan for 2013, which it believes more closely aligns the payout to each individual with the 2013 performance of the Company and the assigned business units as well as the individual's performance:

Long-term Incentives — 2013 Annual Grants

After considering the most recent long-term incentive compensation data from companies in the Benchmarking Groups and after taking into account its evaluation of their individual performance during 2012, the Committee approved (and in the case of Mr. Thulin, the independent members of the Board of Directors ratified) the following grant values of the Named Executive Officers' annual long-term incentive compensation awards for 2013. For ease of comparison, the following table also shows the grant values

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of the Named Executive Officers' 2012 annual long-term incentive compensation awards and the percentage change between the two amounts.

Mr. Meline and Mr. Sauer received significantly larger percentage increases in the grant values of their 2013 awards due to their outstanding individual performance during 2012. As explained in the Company's 2013 Proxy Statement, Mr. Meline's increase reflected his success in improving the Company's relationship with the investment community during his first full year as its Chief Financial Officer, including the development and communication of the Company's new long-term financial goals. Similarly, Mr. Sauer's increase reflected the strong financial performance of 3M's health care business (which he led for most of the year) during 2012, especially its ability to generate strong profit growth in a lackluster economy.

Consistent with market practices at companies in the Benchmarking Groups, during 2013 the Committee chose to deliver one-half of the target grant value of the annual long-term incentive compensation awards provided to 3M's Named Executive Officers in the form of stock options (before adjustment for individual performance) and the remaining one-half in the form of performance shares. Performance shares awarded in 2013 will result in the issuance of actual shares of 3M common stock to 3M's Named Executive Officers only if the Company achieves selected financial goals over a three-year performance period ending on December 31, 2015. The number of shares of 3M common stock that will be issued for each 2013 performance share is linked to the Company's performance as measured by the criteria of Organic Sales Volume Growth, Return on Invested Capital, and the New Product Vitality Index. These performance criteria were selected because the Committee believes that they are important drivers of long-term stockholder value. Approximately 40 percent of the number of shares actually earned will be determined by Organic Sales Volume Growth, another 40 percent will be determined by Return on Invested Capital, and the remaining 20 percent will be determined by the New Product Vitality Index. Accordingly, 60 percent of each individual's long-term incentive opportunity attributable to these awards is tied to the Company's long-term sales growth objective, a key contributor to long-term stockholder value. Attainment of these three independent performance criteria is measured separately for each calendar year during the three-year measurement period, with each year weighted as follows (2013 — 50 percent; 2014 — 30 percent; and 2015 — 20 percent). However, the formulas by which the Company's performance is measured do not change over the three-year performance period.

The number of shares of 3M common stock that will actually be delivered at the end of the three-year performance period ending on December 31, 2015, may be anywhere from 0 percent to 200 percent of each performance share granted, depending on the performance of the Company during such performance period. However, an executive may forfeit all or a portion of such shares if he or she does not remain employed by the Company throughout the three-year performance period.

For 2013, the Committee approved the following formulas for determining the number of shares of 3M common stock to be delivered for each performance share awarded, with the total number of shares actually delivered being the sum of the number of shares earned as a result of the Company's achievement of each of the three financial goals. The formulas for two of the three performance criteria

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changed slightly from the formulas for the performance shares awarded in 2012, to remain current with the most recent operating plans of the Company.