M Delivers Strong Second-Quarter Results Company Updates Full-Year 2024 Earnings Guidance Sales of $6.3 billion, down 0.5% YoY Adjusted sales of $6.0 billion with organic growth up 1.2% YoY GAAP EPS from continuing opera

3M Delivers Strong Second-Quarter Results Company Updates Full-Year 2024 Earnings Guidance

Sales of $6.3 billion, down 0.5% YoY

Adjusted sales of $6.0 billion with organic growth up 1.2% YoY

GAAP EPS from continuing operations of $2.17, up 117% YoY

Adjusted EPS from continuing operations of $1.93, up 39% YoY

Operating cash flow of $1.0 billion with adjusted free cash flow of $1.2 billion

Updates full-year 2024 adjusted EPS from continuing operations to $7.00 to $7.30 from $6.80 to $7.30

ST. PAUL, Minn. - July 26, 2024 3M (NYSE MMM) today reported second-quarter results.

"We delivered another strong quarter with adjusted earnings growth up double-digits and robust cash generation. I want to thank 3M employees for their exceptional execution, which we expect to continue in the second half of the year," said William Brown, 3M Chief Executive Officer. "As I look ahead, I am focused on three priorities driving sustained organic revenue growth, increasing operational performance, and effectively deploying capital. I have long admired 3M's track record of innovation and am excited to be leading this great company and by the opportunities ahead."

Second-Quarter Highlights

GAAP EPS of $2.17 and operating margin of 20.3%.

Adjusted EPS of $1.93, up 39% year-on-year.

Adjusted operating income margin of 21.6%, an increase of 4.4 percentage points year-on-year.

Sales of $6.3 billion, down 0.5% year-on-year, with organic sales down 0.3% year-on-year.

Adjusted sales of $6.0 billion, up 1.1% year-on-year with adjusted organic sales up 1.2% year-on-year.

Operating cash flow of $1.0 billion adjusted free cash flow of $1.2 billion.

3M returned $786 million to shareholders via dividends and share repurchases.

This document includes reference to certain non-GAAP measures. See the "Supplemental Financial Information Non-GAAP Measures" section for applicable information.

Updated Full-Year 2024 Earnings Outlook

3M updated its full-year adjusted earnings expectations given the company's strong operational execution in the first half of the year. The 2024 earnings outlook below reflects the continuing operations of 3M.

2As further discussed at 6 within the Supplemental Financial Information Non-GAAP Measures sections, 3M cannot, without unreasonable effort, forecast certain items required to develop meaningful comparable GAAP financial measures and, therefore, does not provide them on a forward-looking basis reflecting these items.

3M will conduct an investor teleconference at 9 a.m. EDT (8 a.m. CDT) today. Investors can access this conference via the following

Live webcast at https investors.3M.com

Webcast replay at https investors.3m.com financials quarterly-earnings

Forward-Looking Statements

This news release contains forward-looking statements. You can identify these statements by the use of words such as "plan," "expect," "aim," "believe," "project," "target," "anticipate," "intend," "estimate," "will," "should," "could," "would," "forecast" and other words and terms of similar meaning. Forward-looking statements are based on certain assumptions and expectations of future events and trends that are subject to risks and uncertainties. Actual future results and trends may differ materially from historical results or those reflected in any such forward-looking statements depending on a variety of factors. Among the factors that could cause actual results to differ materially are the following (1) worldwide economic, political, regulatory, international trade, geopolitical, capital markets and other external conditions and other factors beyond the Company's control, including inflation, recession, military conflicts, and natural and other disasters or climate change affecting the operations of the Company or its customers and suppliers (2) foreign currency exchange rates and fluctuations in those rates (3) liabilities and the outcome of contingencies related to certain fluorochemicals known as "PFAS," including liabilities related to claims, lawsuits, and government regulatory proceedings concerning various PFAS-related products and chemistries, as well as risks related to the Company's plans to exit PFAS manufacturing and discontinue use of PFAS across its product portfolio (4) risks related to the class-action settlement to resolve claims by public water suppliers in the United States regarding PFAS (5) legal proceedings, including significant developments that could occur in the legal and regulatory proceedings described in the Company's reports on Form 10-K, 10-Q and 8-K (the "Reports") (6) competitive conditions and customer preferences (7) the timing and market acceptance of new product and service offerings (8) the availability and cost of purchased components, compounds, raw materials and energy due to shortages, increased demand and wages, supply chain interruptions, or natural or other disasters (9) unanticipated problems or delays with the phased implementation of a global enterprise resource planning system, or security breaches and other disruptions to the Company's information technology infrastructure (10) the impact of acquisitions, strategic alliances, divestitures, and other strategic events resulting from portfolio management actions and other evolving business strategies (11) operational execution, including the extent to which the Company can realize the benefits of planned productivity improvements, as well as the impact of organizational restructuring activities (12) financial market risks that may affect the Company's funding obligations under defined benefit pension and postretirement plans (13) the Company's credit ratings and its cost of capital (14) tax-related external conditions, including changes in tax rates, laws or regulations (15) matters relating to the spin-off of the Company's Health Care business, including the risk that the expected benefits will not be realized the risk that the costs or dis-synergies will exceed the anticipated amounts potential business disruption the diversion of management time the impact of the transaction on the Company's ability to retain talent potential impacts on the Company's relationships with its customers, suppliers, employees, regulators and other counterparties the ability to realize the desired tax treatment the risk that any consents or approvals required will not be obtained risks under the agreements and obligations entered into in connection with the spin-off, and (16) matters relating to Combat Arms Earplugs ("CAE"), including those related to, the August 2023 settlement that is intended to resolve, to the fullest extent possible, all litigation and alleged claims involving the CAE sold or manufactured by the Company's subsidiary Aearo Technologies and certain of its affiliates and or the Company. A further description of these factors is located in the Reports under "Cautionary Note Concerning Factors That May Affect Future Results" and "Risk Factors" in Part I, Items 1 and 1A (Annual Report) and in Part I, Item 2 and Part II, Item 1A (Quarterly Reports). Changes in such assumptions or factors could produce significantly different results. The Company assumes no obligation to update any forward-looking statements discussed herein as a result of new information or future events or developments.

3M Company and Subsidiaries

CONSOLIDATED STATEMENT OF INCOME (LOSS)

(Millions, except per-share amounts)

3M Company and Subsidiaries

CONDENSED CONSOLIDATED BALANCE SHEET

(Dollars in millions)

3M Company and Subsidiaries

CONDENSED CONSOLIDATED STATEMENT OF CASH FLOWS

(Dollars in millions)

The Consolidated Statements of Cash Flows include the results of continuing and discontinued operations and, therefore, also include cash and cash equivalents associated with Solventum through its April 2024 separation from 3M that were presented in current assets of discontinued operations in the 3M Consolidated Balance Sheet.

3M Company and Subsidiaries

SALES CHANGE ANALYSIS3

3Total sales change is calculated based on reported sales results. The components of sales change include organic local-currency sales, acquisitions, divestitures, and translation. Organic local-currency sales include both organic volume impacts (which excludes acquisition and divestiture impacts) and selling price changes. Acquisition and divestiture impacts are measured separately for the first 12 months post-transaction and, beginning April 2024, include the impact of commercial agreements associated with the separation of Solventum.

3M Company and Subsidiaries

BUSINESS SEGMENTS AND DISAGGREGATED REVENUE INFORMATION

3M discloses business segment operating income (loss) as its measure of segment profit loss, reconciled to both total 3M operating income (loss) and income before taxes. Business segment operating income (loss) excludes certain expenses and income that are not allocated to business segments (as described below in "Corporate and Unallocated and Other").

3M made certain changes to the composition of segment information reviewed by 3M's chief operating decision maker (CODM) effective in the second quarter of 2024 largely as a result of the separation of Solventum and changes within its business segments effective in the first quarter of 2024. Accordingly, information provided herein reflects the impact of these changes for all applicable periods presented.

Effective in the second quarter of 2024, this change included the following

Elimination of former Health Care business segment

The former Health Care business segment was eliminated in the second quarter of 2024 in connection with the separation of Solventum and reflection of its historical net income and applicable assets and liabilities included in the Separation as discontinued operations within 3M's financial statements.

Addition of Other' and update to Corporate and Unallocated'

3M added the "Other" category of information as a result of the Separation. It principally reflects activity associated with

Transition arrangement agreements (e.g. fees charged by 3M, net of underlying costs) related to divested businesses, including those related to the Separation, as well as other applicable divestitures.

Operations of businesses of the former Health Care segment divested prior to the Separation and therefore not reflected as discontinued operations within 3M's financial statements, along with limited-duration supply agreements with those previous divestitures.

Activity included in 3M's existing "Corporate and Unallocated" was updated primarily to additionally reflect

Removal of costs related to separating and divesting Solventum that were eligible to be part of discontinued operations.

Commercial activity with Solventum post-Separation and certain operations of the former Health Care business segment retained by 3M.

Costs previously allocated to Solventum prior to the Separation that were not eligible to be part of discontinued operations (and prospectively, post-spin, became additional costs allocated to remaining business segments) other than those beginning in the first quarter of 2024 included in "Other" associated with transition arrangement activity for which 3M began to charge fees in April 2024.

In addition, effective in the first quarter of 2024, 3M made certain changes within its business segments as described below. While they impacted the composition of certain divisions within business segments, they did not change the overall composition of segments or the measure of segment operating performance used by 3M's CODM.

Creation of Industrial Specialties division (within Safety and Industrial business segment) and Commercial Branding and Transportation division (within Transportation and Electronics business segment)

3M created the Industrial Specialties division within the Safety and Industrial business segment, which consists of the former Closure and Masking Systems division along with certain products formerly within the Industrial Adhesive and Tapes division and the Personal Safety division. Further, 3M created the Commercial Branding and Transportation division within the Transportation and Electronics business segment, which consists of the former Commercial Solutions division and the Transportation Safety division.

Re-alignment of divisions within Consumer business segment

Within the Consumer business segment, the business re-aligned to the following four divisions Consumer Safety and Well-Being, Home and Auto Care, Home Improvement, and Packaging and Expression.

3M Company and Subsidiaries

BUSINESS SEGMENTS AND DISAGGREGATED REVENUE INFORMATION - (CONTINUED)

Corporate and Unallocated and Other

Outside of 3M's operating segments, 3M has Corporate and Unallocated and Other which are not reportable business segments as they do not meet the segment reporting criteria. Because Corporate and Unallocated and Other include a variety of miscellaneous items, they are subject to fluctuation on a quarterly and annual basis.

Corporate and Unallocated operating income (loss) includes "corporate special items" and "other corporate expense-net".

Corporate special items include net costs for significant litigation impacting operating income (loss) associated with PFAS-related other environmental and Combat Arms Earplugs matters. In addition, during the voluntary chapter 11 bankruptcy period (which began in July 2022 and ended in June 2023), costs associated with the Aearo portion of respirator mask asbestos matters were also included in corporate special items. Prior to the bankruptcy, costs associated with Combat Arms Earplugs matters were not included in the Corporate net costs for significant litigation special item, instead being reflected in the Safety and Industrial business segment. Corporate special items for the periods presented also include divestiture costs and Russia exit costs benefits. Divestiture costs include costs that were not eligible to be part of discontinued operations related to separating and divesting substantially an entire business segment of 3M following public announcement of its intended divestiture.

Other corporate expense-net includes certain enterprise and governance activities resulting in unallocated corporate costs and other activity and net costs that 3M may choose not to allocate directly to its business segments. Other corporate expense-net also includes costs previously allocated to Solventum prior to the Separation that were not eligible to be part of discontinued operations, commercial activity with Solventum post-Separation, and certain operations of the former Health Care business segment retained by 3M.

3M Company and Subsidiaries

BUSINESS SEGMENTS AND DISAGGREGATED REVENUE INFORMATION - (CONTINUED)

Other principally reflects activity associated with

Operations of businesses of the former Health Care segment divested prior to the Separation and therefore not reflected as discontinued operations within 3M's financial statements, along with limited-duration supply agreements with those previous divestitures.

Transition arrangement agreements (e.g. fees charged by 3M, net of underlying costs) related to divested businesses, including those related to the Separation, as well as other applicable divestitures.

The table below provides disaggregated revenue information for full-year 2023 revised to reflect the changes to composition of segment information effective in the second quarter of 2024 largely as a result of the separation of Solventum and changes within its business segments effective in the first quarter of 2024. Similar information relative to applicable periods will be included in 3M's Form 10-Q filed for the second quarter of 2024. The information below should be read together with information in 3M's Quarterly Report on Form 10-Q for the quarter ended March 31, 2024, Annual Report on Form 10-K for the year ended December 31, 2023, and Quarterly Reports on Form 10-Q during the year ended December 31, 2023 (including the consolidated financial statements, notes thereto and Management's Discussion and Analysis included in those documents), along with information included in 3M's Current Reports on Form 8-K filed April 4, 2024. The financial information that follows does not revise or otherwise amend or restate any previously filed financial information of 3M. This information is preliminary, unaudited, and based on current estimates, and remains subject to change.

Disaggregated revenue information

3M Company and Subsidiaries

SUPPLEMENTAL FINANCIAL INFORMATION

In addition to reporting financial results in accordance with U.S. GAAP, 3M also provides certain non-GAAP measures. These measures are not in accordance with, nor are they a substitute for GAAP measures, and may not be comparable to similarly titled measures used by other companies.

Certain measures adjust for the impacts of special items. Special items for the periods presented include the items described in the section entitled "Description of special items". Because 3M provides certain information with respect to business segments, it is noteworthy that special items impacting operating income (loss) are reflected in Corporate and Unallocated, except as described with respect to net costs for significant litigation and manufactured PFAS products items in the "Description of special items" section. The reconciliations below, therefore, also include impacted segments as applicable.

This document contains measures for which 3M provides the reported GAAP measure and a non-GAAP measure adjusted for special items. The document also contains additional measures which are not defined under U.S. GAAP. These measures and reasons 3M believes they are useful to investors (and, as applicable, used by 3M) include

The following provides additional information and applicable GAAP amounts reconciled to non-GAAP measures.

3M Company and Subsidiaries

SUPPLEMENTAL FINANCIAL INFORMATION

NON-GAAP MEASURES - (CONTINUED)

Certain amounts adjusted for special items (non-GAAP measures)

4These items represent amounts adjusted for special items. See lead-in to non-GAAP measures discussion.