3M Results Presentation Deck

Q3 2021 cash flow and balance sheet $1.5B -29% year-on-year 107% -44 ppts year-on-year $1.4B +63% year-on-year Adjusted free cash flow Adjusted free cash flow conversion Cash returned to shareholders 2021 Q3 Earnings - October 26, 2021. All rights reserved. 3M Proactive balance sheet management Net debt of $12.4B, down $2.6B, or 17% year-on-year ● Adjusted free cash flow Q3: $1.5B, down 29%; YTD: $4.5B, down 3% year-on-year Adjusted free cash flow conversion Q3: 107%, down 44 ppts; YTD: 98%, down 26 ppts Year-on-year decline primarily due to strong customer demand and supply chain challenges which increased working capital ● ● Capital expenditures Q3: $343M; YTD $1.0B FY 2021: $1.5B to $1.6B versus $1.8B to $2.0B, previously ● ● Cash returned to shareholders Dividends: Q3 $856M; YTD $2.6B Gross share repurchases: Q3 $527M; YTD $1.3B ● ● 7

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