EXHIBIT 15

 

August 1, 2017

 

Securities and Exchange Commission

100 F Street, N.E.

Washington, DC 20549

 

Commissioners:

 

We are aware that our report dated August 1, 2017 on our review of interim financial information of 3M Company and its subsidiaries for the three and six month periods ended June 30, 2017 and 2016 and included in the Company's quarterly report on Form 10-Q for the quarter ended June 30, 2017 is incorporated by reference in its Registration Statements on Form S-8 (Registration Nos. 333-30689, 333-30691, 333-44760, 333-73192, 333-101727, 333-109282, 333-128251, 333-130150, 333-151039, 333-156626, 333-156627, 333-166908, 333-174562, 333-181269, 333-181270 and 333-211431) and Form S-3 (Registration Nos. 333-216219, 33-48089, 333-42660, and 333-109211) dated August 1, 2017.

 

 

Very truly yours,

 

/s/ PricewaterhouseCoopers LLP

 

PricewaterhouseCoopers LLP

Minneapolis, Minnesota