3M Results Presentation Deck

Business segment information ($M) Business groups Safety & Industrial Transportation & Electronics Health Care Consumer Net Sales Total Q3 2020 $3,017 Q3 2021 $3,235 $2,316 $2,450 5.1% $2,160 $2,249 Elimination of Dual Credit Total Operating Business Segment Corporate & Unallocated $(2) $1,412 $1,525 7.6% $(553) $(520) $3 $8,350 $8,942 Organic local- currency FX M&A 6.1% 3.3% 2021 Q3 Earnings - October 26, 2021. All rights reserved. Q3 2021 Sales Growth 6.3% 1.1% 0.7% 0.8% -% -% -% 0.5% -% 0.8% -% Total Sales Change 7.2% "Corporate and Unallocated" and "Total" provided on an adjusted basis Organic local-currency = organic volume + price 5.8% 4.1% 8.1% 7.1% Organic local-currency by Geographic Area Asia Americas Pacific 4.9% 13.3% 1.4% 9.5% 7.4% 3M 15.6% -0.8% -0.2% 10.9% 3.8% 5.6% Q3 EMEA 2020 $774 11.3% 3.1% -0.6% Business Segment Operating Income/Adjusted Operating 4.2% $514 $493 $343 $(142) Income* Q3 2021 $620 $1,909 $465 $529 $(131) $1,982 $1,815 $(73) $(27) Percent change -19.9% $332 -3.3% -9.4% 7.2% $1,788 -6.3% Business Segment Operating Margin/Adjusted Operating Margin* Q3 2020 25.7% 22.2% 22.8% 24.3% 22.9% Q3 2021 19.2% 19.0% 23.5% 21.7% 20.0% 14

View entire presentation