EXHIBIT 12
3M COMPANY AND SUBSIDIARIES
CALCULATION OF RATIO OF EARNINGS TO FIXED CHARGES
(Millions)
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 | Nine months | 
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 | September | 
 | Year | 
 | Year | 
 | Year | 
 | Year | 
 | Year | 
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 | 2012 | 
 | 2011 | 
 | 2010 | 
 | 2009 | 
 | 2008 | 
 | 2007 | 
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| EARNINGS | 
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| Income before income taxes* | 
 | $ | 4,942 | 
 | $ | 6,031 | 
 | $ | 5,755 | 
 | $ | 4,632 | 
 | $ | 5,108 | 
 | $ | 6,115 | 
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| Add: | 
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| Interest expense  | 
 | 142 | 
 | 206 | 
 | 220 | 
 | 236 | 
 | 231 | 
 | 229 | 
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| Interest component of the ESOP benefit expense | 
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 | 1 | 
 | 3 | 
 | 5 | 
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| Portion of rent under operating leases representative of the interest component | 
 | 68 | 
 | 85 | 
 | 81 | 
 | 76 | 
 | 77 | 
 | 70 | 
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| Less: | 
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| Equity in undistributed income of 20-50% owned companies | 
 | 4 | 
 | 4 | 
 | 4 | 
 | 4 | 
 | 6 | 
 | 5 | 
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| TOTAL EARNINGS AVAILABLE FOR FIXED CHARGES | 
 | $ | 5,148 | 
 | $ | 6,318 | 
 | $ | 6,052 | 
 | $ | 4,941 | 
 | $ | 5,413 | 
 | $ | 6,414 | 
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| FIXED CHARGES | 
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| Interest on debt (including capitalized interest) | 
 | 145 | 
 | 206 | 
 | 218 | 
 | 246 | 
 | 243 | 
 | 235 | 
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| Interest component of the ESOP benefit expense | 
 |  | 
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 | 1 | 
 | 3 | 
 | 5 | 
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| Portion of rent under operating leases representative of the interest component | 
 | 68 | 
 | 85 | 
 | 81 | 
 | 76 | 
 | 77 | 
 | 70 | 
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| TOTAL FIXED CHARGES | 
 | $ | 213 | 
 | $ | 291 | 
 | $ | 299 | 
 | $ | 323 | 
 | $ | 323 | 
 | $ | 310 | 
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| RATIO OF EARNINGS TO FIXED CHARGES | 
 | 24.2 | 
 | 21.7 | 
 | 20.2 | 
 | 15.3 | 
 | 16.8 | 
 | 20.7 | 
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*2009 results included net pre-tax charges of $194 million related to restructuring actions partially offset by a gain on sale of real estate. 2008 results included net pre-tax charges of $269 million, with charges related to restructuring actions, exit activities and a loss on sale of businesses partially offset by a gain on sale of real estate. 2007 results included pre-tax gains of $681 million, with net benefits from gains related to the sale of businesses and a gain on sale of real estate, which were partially offset by increases in environmental liabilities, restructuring actions, and exit activities.