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 (Amendment No. )

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☐		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)

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*** Exercise Your Right to Vote ***
 Important Notice Regarding the Availability of Proxy Materials for the
Stockholder Meeting to Be Held on May 10, 2016.
3M COMPANY

3M CENTER
BLDG. 220-9E-02
 ST. PAUL, MN 55144-1000
Meeting Information	
Meeting Type:	Annual Meeting	
For holders as of:	March 11, 2016	
Date: May 10, 2016   	    Time: 10:00 a.m. CDT	
Location:	Austin City Limits Live at the Moody Theater
310 W. Willie Nelson Blvd.
Austin, Texas 78701  	
TO ATTEND ANNUAL MEETING: RSVP AND PRINT YOUR ADMISSION TICKET AT WWW.PROXYVOTE.COM	
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: 
 NOTICE AND PROXY STATEMENT           ANNUAL REPORT
How to View Online:
 Have the information that is printed in the box marked by the arrow ➔ XXXX XXXX XXXX XXXX  (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 ➔ XXXX XXXX XXXX XXXX  (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 26, 2016 to facilitate timely delivery.

How To Vote
   Please Choose One of the Following Voting Methods			SCAN TO
 VIEW MATERIALS & VOTE		

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 ➔ XXXX XXXX XXXX XXXX  available and follow the instructions. Your voting must be completed by 10:59 p.m. CDT on May 9, 2016 (or by 10:59 p.m. CDT on May 8, 2016 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 the following proposals 1, 2, 3 and 4:	
  	
Vote on Directors	
  	
1.     	To elect twelve members to the Board of Directors, each for a term of one year.	
	  	
	Nominees:	
		  	
	1a.     	Sondra L. Barbour	
		  	
	1b.	Thomas "Tony" K. Brown	
		  	
	1c.	Vance D. Coffman	
		  	
	1d.	David B. Dillon	
		  	
	1e.	Michael L. Eskew	
		  	
	1f.	Herbert L. Henkel	
		  	
	1g.	Muhtar Kent	
		  	
	1h.	Edward M. Liddy	
		  	
	1i.	Gregory R. Page	
		  	
	1j.	Inge G. Thulin	
		  	
	1k.	Robert J. Ulrich	
		  	
	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.	
  		
4.	Approval of the 2016 Long-Term Incentive Plan.	
  	
The Board of Directors recommends you vote AGAINST the following proposals 5 and 6:	
  	
5.	Stockholder proposal on special meetings.	
  		
6.	Stockholder proposal on share repurchase program and executive compensation.	
  	
NOTE: Such other business as may properly come before the meeting or any adjournment or postponement thereof.