Washington, D.C. 20549


Proxy Statement Pursuant to Section 14(a) of the
Securities Exchange Act of 1934 (Amendment No. )

Filed by the Registrant Filed by a Party other than the Registrant      

  Preliminary Proxy Statement
Confidential, For Use of the Commission Only (as permitted by Rule 14a-6(e)(2))
Definitive Proxy Statement
  Definitive Additional Materials
Soliciting Material Under Rule 14a-12

3M Company

(Name of Registrant as Specified In Its Charter)
(Name of Person(s) Filing Proxy Statement, if Other Than the Registrant)

  No fee required.
Fee computed on table below per Exchange Act Rules 14a-6(i)(1) and 0-11.
1) Title of each class of securities to which transaction applies:
2) Aggregate number of securities to which transaction applies:
3) Per unit price or other underlying value of transaction computed pursuant to Exchange Act Rule 0-11 (set forth the amount on which the filing fee is calculated and state how it was determined):
4) Proposed maximum aggregate value of transaction:
5) Total fee paid:
Fee paid previously with preliminary materials:
Check box if any part of the fee is offset as provided by Exchange Act Rule 0-11(a)(2) and identify the filing for which the offsetting fee was paid previously. Identify the previous filing by registration statement number, or the form or schedule and the date of its filing.
1) Amount previously paid:
2) Form, Schedule or Registration Statement No.:
3) Filing Party:
4) Date Filed:

*** Exercise Your Right to Vote ***

Important Notice Regarding the Availability of Proxy Materials for the
Stockholder Meeting to Be Held on May 8, 2018.







BLDG. 220-9E-02
ST. PAUL, MN 55144-1000
Meeting Information
Meeting Type:             Annual Meeting
For holders as of:       March 13, 2018
Date:  May 8, 2018            Time:  8:30 a.m. EDT
Location: Conrad Indianapolis
50 West Washington Street
Indianapolis, Indiana 46204 
Questions? Contact us at 1-800-364-3577


You are receiving this communication because you hold shares in 3M Company.


This is not a ballot. You cannot use this notice to vote these shares. This communication presents only an overview of the more complete proxy materials that are available to you on the Internet. You may view the proxy materials online at www.proxyvote.com, scan the QR Barcode on the reverse side, or easily request a paper copy (see reverse side).


We encourage you to access and review all of the important information contained in the proxy materials before voting.


See the reverse side of this notice to obtain proxy materials and voting instructions.


Before You Vote

  How to Access the Proxy Materials

Proxy Materials Available to VIEW or RECEIVE:

How to View Online:
Have the information that is printed in the box marked by the arrow  (located on the following page) and visit: www.proxyvote.com, or scan the QR Barcode below.


How to Request and Receive a PAPER or E-MAIL Copy:
If you want to receive a paper or e-mail copy of these documents, you must request one. There is NO charge for requesting a copy. Please choose one of the following methods to make your request:


  1)    BY INTERNET: www.proxyvote.com
2) BY TELEPHONE:      1-800-579-1639
3) BY E-MAIL*: sendmaterial@proxyvote.com
*      If requesting materials by e-mail, please send a blank e-mail with the information that is printed in the box marked by the arrow  (located on the following page) in the subject line.


Requests, instructions and other inquiries sent to this e-mail address will NOT be forwarded to your investment advisor. Please make the request as instructed above on or before April 24, 2018 to facilitate timely delivery.

How To Vote


  Please Choose One of the Following Voting Methods


Vote By Internet: To vote now by Internet, go to www.proxyvote.com or from a smart phone, scan the QR Barcode above. Have the information that is printed in the box marked by the arrow  available and follow the instructions. Your voting must be completed by 11:59 p.m. EDT on May 7, 2018 (or by 11:59 p.m. EDT on May 6, 2018 for participants in 3M’s Voluntary Investment Plan and Employee Stock Ownership Plan and the 3M Savings Plan). When you go online, you can help the environment by consenting to receive electronic delivery of future mailings.


Vote By Phone: Instructions to vote by phone will be included with printed and/or online proxy materials.


Vote By Mail: You can vote by mail by requesting a paper copy of the materials, which will include a proxy card.


Vote In Person: If you are a stockholder of record, you may grant your proxy to 3M or vote in person at the meeting by requesting a ballot. To attend the meeting, register and print your admission ticket in advance at www.proxyvote.com.



Voting Items
The Board of Directors recommends you vote FOR
proposals 1, 2 and 3:
Vote on Directors
1.      To elect twelve members to the Board of Directors,
each for a term of one year.
1a.      Sondra L. Barbour
1b. Thomas “Tony” K. Brown
1c. David B. Dillon
1d. Michael L. Eskew
1e. Herbert L. Henkel
1f. Amy E. Hood
1g. Muhtar Kent
1h. Edward M. Liddy
1i. Gregory R. Page
1j. Michael F. Roman
1k. Inge G. Thulin
  1l. Patricia A. Woertz

2.      To ratify the appointment of PricewaterhouseCoopers LLP as 3M’s independent registered public accounting firm.
3. Advisory approval of executive compensation.
The Board of Directors recommends you vote AGAINST proposals 4 and 5:
4. Stockholder proposal on special shareholder meetings.
5. Stockholder proposal on setting target amounts for CEO compensation.
NOTE: Such other business as may properly come before the meeting or any adjournment or postponement thereof.