Document

This Specialized Disclosure Report (“Form SD”) for 3M Company (“3M,” “Company,” “we,” “our”) is provided in accordance with Rule 13p-1 under the Securities Exchange Act of 1934 (“Rule 13p-1”) for the reporting period from January 1 to December 31, 2022. References to 3M’s website are provided for convenience only, and its contents are not incorporated by reference into this Form SD or the attached Conflict Minerals Report, nor are they deemed filed with the U.S. Securities and Exchange Commission (“SEC”).

“Conflict Minerals” are defined by the SEC as cassiterite, columbite-tantalite, wolframite and gold, and their derivatives, which are limited to tin, tantalum and tungsten (collectively “3TG”). During calendar year 2022, 3M manufactured and contracted to manufacture products in which 3TG were necessary to the functionality or production of those products.

3M therefore conducted a “reasonable country of origin inquiry” (“RCOI”) to determine whether any of those minerals (1) originated in the Democratic Republic of the Congo, the Republic of the Congo, the Central African Republic, South Sudan, Uganda, Rwanda, Burundi, Tanzania, Zambia and/or Angola (collectively, the “Covered Countries”); or (2) are from recycled or scrap sources.

1. 3M’s Business: 3M is a diversified technology company with a global presence in the following businesses: Safety & Industrial; Transportation & Electronics; Health Care; and Consumer. 3M is among the leading manufacturers of products for many of the markets it serves. These businesses have worldwide responsibility for virtually all 3M product lines.

2. 3M Supply Chains: 3M supply chains are complex, including thousands of suppliers spread over different tiers in those chains. Supplied materials are used in products serving numerous industry sectors. 3M is typically many tiers removed from smelters or refiners (“SORs”) that would have information on mines supplying 3TG. Moreover, to the extent 3TG are present in 3M products, the content may be at trace levels. Supply chains have significantly improved their capacity to obtain and transmit SOR identities, as compared to the first year 3M conducted its 3TG supplier inquiry, which reflects in part the value of the Responsible Minerals Initiative (“RMI”) in building cross-industry collaboration, due diligence guidance, and common supplier inquiry templates that support a more robust infrastructure for multi-tier supply chain inquiry. Still, obtaining information regarding smelters, refiners and mine locations remains challenging. Challenges include delayed supplier responses, incomplete or inconsistent data, and, in some cases, the need for extensive supplier follow-up.

3. 3M’s Responsible Minerals Sourcing Policy: 3M first adopted a Conflict Minerals Policy in 2011 to cover 3TG. The Conflict Minerals Policy was expanded and renamed in 2019 to Responsible Minerals Sourcing Policy (“Policy”) to include cobalt and is available on the 3M Supplier Direct website (https://www.3m.com/3M/en_US/suppliers-direct/) along with other information on 3M’s Responsible Minerals program. 3M is committed to responsible sourcing of 3TG, cobalt and mica using the Organisation for Economic Cooperation and Development Guidance, so as not to support conflict or human rights abuses in the Covered Countries’ Conflict-Affected and High-Risk Areas, while avoiding de facto embargoes. This position is consistent with 3M’s Human Rights Policy Statement (http://multimedia.3m.com/mws/media/1029705O/human-rights- policy.pdf) and 3M’s respect for human rights within our own operations and our supply chains, as well as the United Nations Guiding Principles on Business and Human Rights. 3M is a signatory to the United Nations Global Compact and is aligned with The Ten Principles. The 3M Policy forms the basis for 3M’s Responsible Minerals program, and its requirements are communicated to 3M’s suppliers through annual outreach and in relevant global contract templates and U.S. purchase order terms and conditions, which require suppliers to comply with applicable laws and our responsible sourcing policies including responsible minerals. The 3M Supplier Direct website (https://www.3m.com/3M/en_US/suppliers-direct/) contains training resources on various Conflict Minerals topics, including practical tips, best practices, and other relevant supplier information.

4. 3M’s Participation in Cross-Industry Efforts: As a downstream company that does not typically contract directly with 3TG SORs, 3M routinely collaborates with others in the industry through participation in RMI. RMI is a broad-based initiative that develops control systems regarding smelters and refiners through independently validated audits under RMI’s Responsible Minerals Assurance Process (“RMAP”). According to the RMI website, over 400 companies and associations across multiple industries participate in RMI. RMI also engages with a wide variety of organizations to discuss emerging issues, best practices, and work on addressing

shared challenges across the supply chain. In furtherance of our commitment to industry collaborative controls, and in particular the RMAP program, 3M was one of the early donors to the RMI Initial Audit Fund (the “Fund”) to provide financial assistance to smelters for their first-year audit. The Fund is intended to reduce barriers to smelter participation in the RMAP. 3M has been a member of RMI since 2011 and was an active member of RMI throughout 2022. Members of 3M’s Responsible Minerals Steering Team participated in the RMI Due Diligence Practices Team and Plenary Team and attended the Responsible Business Alliance (“RBA”) and RMI Annual Conference, which was virtual, to ensure alignment on programs and strategies in 2022. 3M also encouraged suppliers, smelters, and refiners to participate in RMI to expand common due diligence efforts. In addition, 3M and its Provider (as defined in Paragraph B.3 below) encouraged SORs identified in 3M’s supply chain, but non-conformant to RMAP, to enroll and participate in RMAP. In 2022, 3M contributed funding to an international development organization’s project on addressing the root causes of child labor in artisanal and small-scale mining for cobalt. Our support through the project’s adolescent apprenticeship program has contributed to reducing child labor in mining.

2.Prioritized Supplier Inquiry: In view of 3M’s complex and extensive supply chains, 3M determined that a reasonably designed and good faith inquiry should focus on higher priority suppliers consistent with RMI’s Five Practical Steps to Support SEC Conflict Minerals Disclosure. 3M designated approximately 54 employees globally as Responsible Minerals Advisors (“RMAs”). The RMAs and many other knowledgeable 3M personnel identified products containing 3TG necessary to the functionality or production of those products (“Necessary 3TG”), including products from covered acquisitions. This process resulted in many product families and individual products being screened out from further inquiry as not containing Necessary 3TG. Through the screening process, the RMAs and other 3M personnel determined to the best of their knowledge that the following product categories may contain Necessary 3TG:

3M then prioritized its review of these products that may contain Necessary 3TG and the corresponding supply chains, taking into account several factors such as estimated content of 3TG, type of mineral, amount of spend, the nature of the supply chain, and supplier location. 3M conducted outreach with suppliers for products that may contain Necessary 3TG, which represented 69% of the in-scope Supplier Group (as defined in Paragraph B.3 below) in 2022.

3. Data Collection: Once the relevant higher priority suppliers (“Supplier Group”) were identified, 3M asked the Supplier Group to provide information about the Necessary 3TG in their products, based on responses to the industry standard RMI Conflict Minerals Reporting Template (“CMRT”). 3M engaged a third-party service provider (“Provider”) to assist with Supplier Group outreach and engagement with data collection and validation. Accordingly, the CMRT was deployed to the Supplier Group through 3M’s Provider’s web portal. That system issued six automatic follow-up reminders to those in the Supplier Group who had not responded to the information requested. For those in the Supplier Group who had not responded after the follow-up reminders, five escalation emails were sent, and follow-up phone calls were made with prioritized suppliers. As part of those phone calls, 3M offered training to the supplier on topics including the importance of the information requested by 3M, the disclosure requirements of the Dodd-Frank Wall Street Reform and Consumer Protection Act Conflict Minerals legislation, and how to submit the CMRT into 3M’s Provider’s web portal. In addition, follow-up notifications were sent as an escalation to those in the Supplier Group who had discrepancies in their CMRT. Outbound communications were conducted in native languages, such as English, German, simplified Chinese, French, Italian, Spanish, Portuguese, and Japanese, to best collaborate with suppliers to ensure expectations were understood.

4. Data Validation: 3M and its Provider conducted data validation on all submitted CMRTs and retained them for recordkeeping purposes. The goal of data validation is to increase the completeness and accuracy of the submissions and to identify any contradictory responses in the CMRT. 3M’s Provider reviewed each response to determine if further engagement with suppliers was warranted. Those responses were escalated to 3M for additional due diligence and follow-up. We considered untimely or incomplete responses, as well as

inconsistencies with the data reported in the CMRT, in making this determination. For any CMRT that was determined invalid based on this review, the Provider’s web platform automatically sent the supplier an email outlining any validation issues with the CMRT question logic or missing fields. 3M’s Provider proactively engaged suppliers to educate them on the validity requirements, how to enter CMRT data and/or 3M’s expectation on CMRT information, as appropriate. 3M’s Provider worked with suppliers to resolve all responses with an incomplete status. The Provider’s web portal provided links to training resources and Conflict Minerals templates, practical tips, and best practices.

For those suppliers that indicated in their CMRTs that they did not have certain aspects of a Conflict Minerals program, such as a Conflict Minerals policy or implementation of due diligence measures for conflict-free sourcing, the CMRTs were still considered valid. However, the Provider applied a “strength indicator” identifying if the supplier’s answer on their CMRT indicated a strong or weak Conflict Minerals program.

The Provider validated whether any 3TG sourced from the Covered Countries was conflict-free based on the information provided by our Supplier Group, by RMI and similar gold refining industry auditing programs (London Bullion Market Association and Responsible Jewellery Council), through RMI RCOI data, and by other information available on RMI’s website.

Based on the responses received to the Company’s RCOI, which included hundreds of alleged SOR names, and information on SOR names, locations, and associated countries of origin from the RMI RCOI data set (to which we have access as a member of RMI), 3M compiled a list of 343 verified, unique SORs, including information regarding associated countries of origin. 3M and its Provider performed due diligence down to the product level on the SORs that were known or reasonably believed to have been sourced from the Covered Countries or that had unknown sourcing, as described in the attached Conflict Minerals Report.

Downstream companies, such as 3M, are not likely to have direct information on the sources of minerals upstream of the SORs in their supply chains. Instead, downstream companies rely on available information regarding SORs identified through supplier inquiry. Accordingly, 3M and its Provider reviewed supplier responses resulting from the inquiry described in Paragraphs B.3 and B.4 above, as well as information from capacity-building interactions and efforts with suppliers to elicit responses and encourage development of Conflict Minerals programs. These supplier responses and the capacity-building efforts affirmed information on supply chain maturity gathered through participation in the RMI program and other industry associations. 3M has received substantially more SOR names from the Supplier Group in recent years as compared to the beginning of the program. In 2022, 3M achieved a 91% response rate from suppliers, which we believe is an indication of significant progress in the multi-tiered supply chains’ capacity to pass 3TG-related inquiries and information on SORs up and down those supply chains. As a downstream company typically several tiers from SORs, 3M relied on information from direct suppliers, many of them smaller and private companies. The information received on SOR names from direct suppliers suggested that these direct suppliers had made progress in building their Conflict Minerals programs and capacities to transmit conflict mineral information during 2022.

Based on its RCOI, 3M has reason to believe that a portion of its Necessary 3TG may have originated in the Covered Countries and that those Necessary 3TG minerals may not be from recycled or scrap sources. Accordingly, 3M and its Provider conducted further due diligence on the source and chain of custody of Necessary 3TG contained in products supplied by the Supplier Group.


/s/ Peter Gibbons
By: Peter Gibbons						May 31, 2023
Group President, Enterprise Operations						(Date)