3M美股招股说明书(2026-09-03版)

We are offering €aggregate principal amount of% Notes due 20(the “20notes”),€aggregate principal amount of% Notes due 20(the “20notes”) and €aggregate principalamount of% Notes due 20(the “20notes” and, together with the 20notes and the 20notes, the “notes”).We will pay interest on the notes onof each year, beginning on, 2027. The 20notes willmatureon, 20, the 20notes will mature on, 20and the 20notes will mature on, 20. We may redeem some or all of the notes at any time, and from time to time, at the applicable redemption pricesdescribed in this prospectus supplement. See “Description of the Notes — Optional Redemption of the Notes.” We may redeem any series of the notes in whole, but not in part, at any time at our option in the event of certainchanges in the tax laws of a relevant Tax Jurisdiction (as defined herein) that would require us to pay additionalamounts as described under “Description of the Notes — Redemption for Tax Reasons.” The notes will be our unsecured and unsubordinated obligations and will rank equally with our existing and futureunsecured and unsubordinated indebtedness. (1)Plus accrued interest, if any, from, 2026, if settlement occurs after that date. Neither the Securities and Exchange Commission (“SEC”) nor any other regulatory body has approved or disapprovedof these securities or passed upon the accuracy and adequacy of this prospectus supplement or the accompanyingprospectus. Any representation to the contrary is a criminal offense. We intend to apply to list each series of the notes on the New York Stock Exchange (“NYSE”). The listingapplications will be subject to approval by NYSE. We currently expect trading in each series of the notes on NYSE tobegin within 30days after the original issue date. Currently, there is no public market for any series of the notes. The underwriters expect to deliver the notes on or about, 2026, only in book-entry form through thefacilities of Euroclear Bank SA/NV (“Euroclear”), and Clearstream Banking S.A. (“Clearstream”), which will be thefifth London business day following the date hereof (this settlement cycle being referred to as “T+5”). See“Underwriting (Conflicts of Interest).” Under Rule15c6-1 of the Securities Exchange Act of 1934, as amended (the“Exchange Act”) trades in the secondary market generally are required to settle in one business day, unless the parties toa trade expressly agree otherwise. Accordingly, purchasers who wish to trade the notes on any day prior to the Londonbusiness day before delivery will be required to specify alternative settlement arrangements at the time of any suchtrade to prevent a failed settlement and should consult their own advisors. Deutsche Bank J.P. Morgan Citigroup The date of this prospectus supplement is , 2026. TABLE OF CONTENTS Prospectus Supplement PageABOUT THIS PROSPECTUS SUPPLEMENTS-1CAUTIONARY NOTE CONCERNING FACTORS THAT MAY AFFECT FUTURE RESULTSS-4SUMMARYS-6RISK FACTORSS-11USE OF PROCEEDSS-16DESCRIPTION OF THE NOTESS-17CERTAIN U.S. FEDERAL TAX CONSIDERATIONSS-28UNDERWRITING (CONFLICTS OF INTEREST)S-35LEGAL MATTERSS-40EXPERTSS-40WHERE YOU CAN FIND MORE INFORMATION AND INCORPORATION BY REFERENCES-40 Prospectus PageABOUT THIS PROSPECTUS1WHERE YOU CAN FIND ADDITIONAL INFORMATION1INCORPORATION OF CERTAIN DOCUMENTS BY REFERENCE1THE COMPANY3RISK FACTORS4SPECIAL NOTE REGARDING FORWARD-LOOKING STATEMENTS5USE OF PROCEEDS7DESCRIPTION OF THE SECURITIES WE MAY OFFER8DEBT SECURITIES8CAPITAL STOCK18PLAN OF DISTRIBUTION20LEGAL MATTERS21EXPERTS21 ABOUT THIS PROSPECTUS SUPPLEMENT This document consists of two parts. The first part is the prospectus supplement, which describes thespecific terms of this offering. The second part is the prospectus, which describes more general information,some of which may not apply to this offering. Generally, when we refer to this prospectus, we are referringto both parts of this document combined. You should read this prospectus supplement, any related freewriting prospectus that we provide to you and the accompanying prospectus, together with the additionalinformation described under the heading “Where You Can Find More Information and Incorporation ByReference” elsewhere in this prospectus supplement. These documents contain information you shouldconsider and rely on when making your investment decision. We have not, and the underwriters have not,authorized anyone else to provide you with different or additional information. If anyone provides you withdifferent or inconsistent information, you should not rely on it. If there is any inconsistency between the information in this prospectus supplement and theaccompanying prospectus, you should rely on the information in this prospectus supplement. If theinformation set forth in this prospectus supplement or the accompanying prospectus varies in any way fromthe information set forth in a document we have incorporated by reference, you should rely on theinformation in the more recent document. This prospe