Mine Safety

UNITED STATES SECURITIES AND EXCHANGE COMMISSION WASHINGTON, D.C. 20549 FORM 8-K CURRENT REPORT PURSUANT TO SECTION 13 OR 15(D) OF THE SECURITIES EXCHANGE ACT OF 1934 Date of report (Date of earliest event reported): August 13, 2024 3M COMPANY (Exact Name of Registrant as Specified in Its Charter) Delaware File No. 1-3285 41-0417775 (State or other jurisdiction of incorporation) (Commission File Number) (IRS Employer Identification No.) 3M Center , St. Paul , Minnesota 55144-1000 (Address of Principal Executive Offices) (Zip Code) (Registrant’s Telephone Number, Including Area Code) ( 651 ) 733-1110 Not Applicable (Former Name or Former Address, if Changed Since Last Report) Check the appropriate box below if the Form 8-K filing is intended to simultaneously satisfy the filing obligation of the registrant under any of the following provisions ( see General Instruction A.2. below): ☐ Written communications pursuant to Rule 425 under the Securities Act (17 CFR 230.425) ☐ Soliciting material pursuant to Rule 14a-12 under the Exchange Act (17 CFR 240.14a-12) ☐ Pre-commencement communications pursuant to Rule 14d-2(b) under the Exchange Act (17 CFR 240.14d-2(b)) ☐ Pre-commencement communications pursuant to Rule 13e-4(c) under the Exchange Act (17 CFR 240.13e-4(c)) Securities registered pursuant to Section 12(b) of the Act: Title of each class Trading Symbol(s) Name of each exchange on which registered Common Stock, Par Value $.01 Per Share MMM New York Stock Exchange MMM Chicago Stock Exchange, Inc. 1.500% Notes due 2026 MMM26 New York Stock Exchange 1.750% Notes due 2030 MMM30 New York Stock Exchange 1.500% Notes due 2031 MMM31 New York Stock Exchange Note: The common stock of the Registrant is also traded on the SIX Swiss Exchange. Securities registered pursuant to section 12(g) of the Act: None Indicate by check mark whether the registrant is an emerging growth company as defined in Rule 405 of the Securities Act of 1933 (17 CFR §230.405) or Rule 12b-2 of the Securities Exchange Act of 1934 (17 CFR §240.12b-2). Emerging growth company      ☐ If an emerging growth company, indicate by check mark if the registrant has elected not to use the extended transition period for complying with any new or revised financial accounting standards provided pursuant to Section 13(a) of the exchange Act.                                                             ☐ Item 1.04. Mine Safety - Reporting of Shutdowns and Patterns of Violation On August 13, 2024, 3M Company received an imminent danger order issued by the Mine Safety and Health Administration under Section 107(a) of the Federal Mine Safety and Health Act of 1977, at its quarry in Little Rock, Arkansas, in connection with a truck driver for an unaffiliated company who was standing on top of a loaded trailer and not wearing fall protection. Corrective action was taken and no one was injured in the cited incident. The order has been terminated. SIGNATURE Pursuant to the requirements of the Securities Exchange Act of 1934, the Registrant has duly caused this report to be signed on its behalf by the undersigned thereunto duly authorized. 3M COMPANY By: /s/ Michael M. Dai Michael M. Dai Vice President, Associate General Counsel & Secretary Dated: August 19, 2024