EXHIBIT 99.1

FOR IMMEDIATE RELEASE

3M Reports Record Fourth-Quarter and Full-Year Sales and Earnings;

Company Raises Earnings Estimates For 2004

ST. PAUL, Minn. — Jan. 20, 2004 — 3M (NYSE: MMM) today announced its sales and earnings results for fourth quarter and full year 2003.

Net income for the quarter was $619 million, or $0.77 per share, versus $511 million, or $0.65 per share, in the fourth quarter of 2002. Net income and per-share earnings increased 21.3 percent and 18.5 percent, respectively.

“Solid execution of both growth and productivity plans characterized the fourth quarter,” said W. James McNerney, Jr., 3M chairman and CEO. “Sales reached an all-time high for the fourth consecutive quarter and earnings per share were the highest of any fourth quarter in 3M’s history. It was a strong finish to the year.”

Worldwide sales totaled $4.718 billion, up 14.0 percent compared to the fourth quarter of 2002. Sales volumes increased 7.6 percent, including a positive 1.7 percent impact from acquisitions. Volumes improved in all businesses, with an increase of 38.4 percent in Display and Graphics (includes 11.5 percent from acquisitions), 8.2 percent in Safety, Security and Protection Services, 2.6 percent in Transportation, 2.4 percent in Health Care, 2.2 percent in Industrial, 1.7 percent in Consumer and Office and 1.6 percent in Electro and Communications. Currency translation effects increased worldwide sales by 6.6 percent, while selling prices were down 0.2 percent.

Sales outside the United States totaled $2.849 billion, an increase of 23.9 percent versus last year’s comparable quarter. Volumes increased 12.8 percent, while selling prices declined 0.8 percent. Currency translation effects increased international sales by 11.9 percent. Volumes increased 28.7 percent in Asia Pacific and 23.3 percent in Latin America, while European volumes declined 1.4 percent. In the United States, sales totaled $1.869 billion, up 1.6 percent from the same quarter of 2002. Volumes increased 1.1 percent, while selling prices improved by 0.5 percent.

Net income for the 2003 calendar year totaled $2.403 billion, or $3.02 per share, compared with $1.974 billion, or $2.50 per share, in 2002. Excluding special items (a), 2003 net income totaled $2.461 billion, or $3.09 per share; full-year net income and per-share earnings increased 18.2 percent and 17.5 percent, respectively. Full-year 2003 sales totaled $18.232 billion, up 11.6 percent in U.S. dollars. Volumes improved 6.6 percent versus the prior year, while selling prices declined 0.2 percent. Currency effects increased 2003 sales by 5.2 percent.

“Despite economic challenges in many parts of the world, the 3M team delivered a challenging operating plan in 2003,” McNerney said, “and we are well-positioned for another successful year in 2004. Our corporate initiatives, now embedded in the 3M fabric, are helping to drive improvements in productivity, cash flow and, most importantly, top-line growth.”

3M also raised its full-year 2004 earnings estimates. The company expects earnings to be in the range of $3.46 to $3.52 per share, an increase of 12 to 14 percent excluding special items in 2003.




Sales volumes are anticipated to grow between 5 percent and 8 percent in 2004. For the first quarter of 2004, the company expects earnings to be in the range of $0.80 to $0.82 per share.

McNerney and Patrick D. Campbell, senior vice president and chief financial officer, will conduct an investor teleconference at 9 a.m. Eastern Time (8 a.m. Central) today. Investors can access a webcast of this conference, along with related charts and materials, at http://investor.3m.com/.

(a)     During the first quarter of 2003, 3M recorded pretax charges of $93 million ($58 million after-tax) related to an adverse court ruling in a lawsuit filed against 3M in 1997 by LePage’s Inc. During the second quarter of 2002, under its previously announced restructuring plan, 3M incurred pretax charges of $148 million ($73 million after-tax) primarily related to employee separation costs and accelerated depreciation charges. The company incurred similar charges in the first quarter of 2002 that totaled $54 million pre-tax ($35 million after-tax).

Forward-Looking Statements
This news release contains forward-looking statements that reflect current views and estimates of 3M’s management of future economic circumstances, industry conditions, company performance and financial results. The statements are based on many assumptions and factors including: (1) worldwide economic conditions; (2) foreign currency exchange rates and fluctuations in those rates; (3) the timing and acceptance of new product offerings; (4) purchased components and materials, including shortages and increases in the costs of such components and materials; (5) 3M’s ability to successfully manage acquisitions, divestitures and strategic alliances; and (6) legal proceedings. Changes in such assumptions or factors, including without limitation the outcome of and information derived from pending Congressional action concerning asbestos-related litigation, could produce significantly different results.

About 3M — A Global, Diversified Technology Company
Every day, 3M people find new ways to make amazing things happen. Wherever they are, whatever they do, the company’s customers know they can rely on 3M to help make their lives better. 3M’s brands include icons such as Scotch, Post-it, Scotchgard, Thinsulate, Scotch-Brite, Filtrete, Command and Dyneon. Serving customers in more than 200 countries around the world, the company’s 67,000 people use their expertise, technologies and global strength to lead in major markets including consumer and office; display and graphics; electronics and telecommunications; safety, security and protection services; health care; industrial and transportation.

Scotch, Post-it, Scotchgard, Thinsulate, Scotch-Brite, Filtrete, Command and Dyneon are trademarks of 3M.




3M Company and Subsidiaries
SALES CHANGE ANALYSIS
(Unaudited)

Fourth-Quarter 2003
Worldwide
U.S.
Intl.
Volume – core      5.9 %  0.0 %  10.7 %
Volume – acquisitions    1.7    1.1    2.1  



Volume – total    7.6    1.1    12.8  
Price    (0.2 )  0.5    (0.8 )
Translation    6.6    --    11.9  



Total    14.0 %  1.6 %  23.9 %




Twelve-Months 2003
Worldwide
U.S.
Intl.
Volume – core    4.7 %  0.6 %  8.2 %
Volume – acquisitions    1.9    1.5    2.2  



Volume – total    6.6    2.1    10.4  
Price    (0.2 )  0.0    (0.3 )
Translation    5.2    --    9.5  



Total    11.6 %  2.1 %  19.6 %






3M Company and Subsidiaries
CONSOLIDATED STATEMENT OF INCOME
(Amounts in millions, except per-share amounts)
(Unaudited)

Three-months ended
December 31

Twelve-months ended
December 31

2003
2002
2003
2002
Net sales     $ 4,718   $ 4,138   $ 18,232   $ 16,332  




Operating expenses  
  Cost of sales    2,429    2,114    9,285    8,496  
  Selling, general and  
    administrative expenses    1,061    955    4,039    3,720  
  Research, development and  
    related expenses    286    273    1,102    1,070  
  Other expense            93      




                     Total    3,776    3,342    14,519    13,286  




Operating income    942    796    3,713    3,046  




Interest expense and income  
  Interest expense    15    22    84    80  
  Interest income    (11 )  (12 )  (28 )  (39 )




                  Total    4    10    56    41  




Income before income taxes  
  and minority interest    938    786    3,657    3,005  
Provision for income taxes    305    255    1,202    966  
Minority interest    14    20    52    65  




Net income   $ 619   $ 511   $ 2,403   $ 1,974  




Weighted average common  
  shares outstanding - basic    784.6    780.6    782.8    780.0  
Earnings per share – basic   $ 0.79   $ 0.65   $ 3.07   $ 2.53  




Weighted average common  
  shares outstanding – diluted    800.9    791.3    795.3    791.0  
Earnings per share – diluted   $ 0.77   $ 0.65   $ 3.02   $ 2.50  




Cash dividends paid  
  per common share   $ 0.33   $ 0.31   $ 1.32   $ 1.24  




Share and per-share data have been adjusted to reflect the two-for-one stock split effective with third quarter 2003 reporting.




3M Company and Subsidiaries
SUPPLEMENTAL CONSOLIDATED STATEMENT OF INCOME INFORMATION
(Dollars in millions, except per-share amounts)
(Unaudited)

Twelve-months ended
December 31, 2003

Twelve-months ended
December 31, 2002

Excluding
special
items
Special
items
Reported
total
Excluding
special
items
Special
items
Reported
total






Net sales     $ 18,232   $   $ 18,232   $ 16,332   $   $ 16,332  






Operating expenses  
  Cost of sales    9,285        9,285    8,375    121    8,496  
  Selling, general and  
    administrative  
    expenses    4,039        4,039    3,643    77    3,720  
  Research, development  
    and related expenses    1,102        1,102    1,066    4    1,070  
  Other expense        93    93              






      Total    14,426    93    14,519    13,084    202    13,286  






Operating  
  income (loss)    3,806    (93 )  3,713    3,248    (202 )  3,046  

Interest expense
  
  and (income), net    56        56    41        41  






Income (loss) before  
 income taxes and  
 minority interest    3,750    (93 )  3,657    3,207    (202 )  3,005  

Provision (benefit)
  
 for income taxes    1,237    (35 )  1,202    1,042    (76 )  966  
Effective tax rate    33.0 %      32.9 %  32.5 %      32.1 %

Minority interest
    52        52    83    (18 )  65  






Net income (loss)   $ 2,461   $ (58 ) $ 2,403   $ 2,082   $ (108 ) $ 1,974  






 Weighted average  
  diluted shares    795.3    795.3    795.3    791.0    791.0    791.0  
 Net income per  
  diluted share   $ 3.09   $ (0.07 ) $ 3.02   $ 2.63   $ (0.13 ) $ 2.50  






Share and per-share data have been adjusted to reflect the two-for-one stock split effective with third quarter 2003 reporting.




3M Company and Subsidiaries
CONDENSED CONSOLIDATED BALANCE SHEET
(Dollars in millions, except per-share amounts)
(Unaudited)

Dec. 31,
2003

Dec. 31,
2002

ASSETS            
Current assets  
  Cash and cash equivalents   $ 1,836   $ 618  
  Accounts receivable – net    2,714    2,527  
  Inventories    1,816    1,931  
  Other current assets    1,347    983  


        Total current assets    7,713    6,059  
  Investments    218    238  
  Property, plant and equipment – net    5,609    5,621  
  Other assets    4,053    3,411  


        Total assets   $ 17,593   $ 15,329  


LIABILITIES AND STOCKHOLDERS’ EQUITY   
Current liabilities  
  Short-term debt   $ 1,202   $ 1,237  
  Accounts payable    1,087    945  
  Payroll    436    411  
  Income taxes payable    880    518  
  Other current liabilities    1,477    1,346  


        Total current liabilities    5,082    4,457  
Long-term debt    1,735    2,140  
Other liabilities    2,910    2,739  


        Total liabilities    9,727    9,336  



Total stockholders’ equity – net
    7,866    5,993  
  Shares outstanding  
        December 31, 2003: 784,117,360 shares  
        December 31, 2002: 780,391,362 shares  


        Total liabilities and stockholders' equity   $ 17,593   $ 15,329  


Shares outstanding have been adjusted to reflect the two-for-one stock split effective with third quarter 2003 reporting.




3M Company and Subsidiaries
CONDENSED CONSOLIDATED STATEMENT OF CASH FLOWS
(Dollars in millions)(Unaudited)

Three-months ended
December 31

Twelve-months ended
December 31

2003
2002
2003
2002
SUMMARY OF CASH FLOW:                    

NET CASH PROVIDED BY
  
  OPERATING ACTIVITIES   $ 1,286   $ 999   $ 3,793   $ 2,992  




Cash flows from investing activities:  
    Purchases of property, plant  
        and equipment    (261 )  (233 )  (677 )  (763 )
    Acquisitions of businesses    (11 )  (1,170 )  (439 )  (1,258 )
    Other investing activities    19    42    127    94  




NET CASH USED IN  
  INVESTING ACTIVITIES    (253 )  (1,361 )  (989 )  (1,927 )




Cash flows from financing activities:  
    Change in debt    (68 )  427    (440 )  445  
    Purchases of treasury stock    (291 )  (129 )  (685 )  (942 )
    Reissuances of treasury stock    130    96    555    522  
    Dividends paid to stockholders    (259 )  (243 )  (1,034 )  (968 )
    Other financing activities    (4 )  --    (23 )  (78 )




NET CASH USED IN  
  FINANCING ACTIVITIES    (492 )  151    (1,627 )  (1,021 )




Effect of exchange rate  
  changes on cash    16    8    41    (42 )




Net increase (decrease) in cash and  
  cash equivalents    557    (203 )  1,218    2  
Cash and cash equivalents at  
  beginning of period    1,279    821    618    616  




Cash and cash equivalents at  
  end of period    1,836    618    1,836    618  




FREE CASH FLOW (Non-GAAP measure):  
Net cash provided by  
  operating activities    1,286    999    3,793    2,992  
Purchases of property, plant  
  and equipment    (261 )  (233 )  (677 )  (763 )




FREE CASH FLOW    1,025    766    3,116    2,229  







3M Company and Subsidiaries
BUSINESS SEGMENTS
(Dollars in millions)
(Unaudited)

BUSINESS SEGMENT INFORMATION

Three-months ended
December 31
Twelve-months ended
December 31
(Millions)
  
  
2003
2002
2003
2002
NET SALES                    
Health Care   $ 1,020   $ 918   $ 3,995   $ 3,560  
Industrial    865    793    3,354    3,147  
Display and Graphics    810    569    2,962    2,228  
Consumer and Office    685    645    2,607    2,444  
Safety, Security and Protection Services    470    405    1,928    1,686  
Electro and Communications    472    448    1,818    1,831  
Transportation    388    349    1,538    1,388  
Corporate and Unallocated    8    11    30    48  




Total Company   $ 4,718   $ 4,138   $ 18,232   $ 16,332  





OPERATING INCOME
  
Health Care   $ 254   $ 243   $ 1,027   $ 900  
Industrial    109    115    458    487  
Display and Graphics    243    129    885    534  
Consumer and Office    114    114    460    448  
Safety, Security and Protection Services    90    71    437    338  
Electro and Communications    71    55    255    253  
Transportation    88    80    389    333  
Corporate and Unallocated    (27 )  (11 )  (198 )  (247 )




Total Company   $ 942   $ 796   $ 3,713   $ 3,046  




During the first quarter of 2003, 3M recorded pretax charges of $93 million related to an adverse court ruling in a lawsuit filed against 3M in 1997 by LePage’s Inc. During the second quarter of 2002, under it’s previously announced restructuring plan, 3M incurred pretax charges of $148 million primarily related to employee separation costs and accelerated depreciation charges. The company incurred similar charges in the first quarter of 2002 that totaled $54 million pre-tax. These 2003 and 2002 charges were recorded in Corporate and Unallocated.






Investor Contacts:   Matt Ginter   Media Contact:   John Cornwell  
   3M     3M 
   (651) 733-8206     (651) 733-7698 
  
Bruce Jermeland
 
   3M 
   (651) 733-1807 

From:
3M Public Relations and Corporate Communications
3M Center, Building 225-1S-15
St. Paul, MN 55144-1000