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UNITED STATES

SECURITIES AND EXCHANGE COMMISSION

Washington, D.C. 20549

FORM 10-K

For the fiscal year ended December 31, 2010

Commission file number 1-3285

3M COMPANY

Principal executive offices: 3M Center, St. Paul, Minnesota 55144

Telephone number: (651) 733-1110

SECURITIES REGISTERED PURSUANT TO SECTION 12(b) OF THE ACT:

Note: The common stock of the Registrant is also traded on the SWX Swiss Exchange.

Securities registered pursuant to section 12(g) of the Act: None

Indicate by check mark if the Registrant is a well-known seasoned issuer, as defined in Rule 405 of the Securities Act.  Yes  x    No  o

Indicate by check mark if the Registrant is not required to file reports pursuant to Section 13 or Section 15(d) of the Act.  Yes  o    No  x

Indicate by check mark whether the Registrant (1) has filed all reports required to be filed by Section 13 or 15(d) of the Securities Exchange Act of 1934 during the preceding 12 months (or for such shorter period that the Registrant was required to file such reports), and (2) has been subject to such filing requirements for the past 90 days.  Yes  x    No  o

Indicate by check mark whether the registrant has submitted electronically and posted on its corporate Web site, if any, every Interactive Data File required to be submitted and posted pursuant to Rule 405 of Regulation S-T during the preceding 12 months (or for such shorter period that the registrant was required to submit and post such files).  Yes  x    No  o

Indicate by check mark if disclosure of delinquent filers pursuant to Item 405 of Regulation S-K is not contained herein, and will not be contained, to the best of Registrant’s knowledge, in definitive proxy or information statements incorporated by reference in Part III of this Form 10-K or any amendment to this Form 10-K.  x

Indicate by check mark whether the Registrant is a large accelerated filer, an accelerated filer, a non-accelerated filer, or a smaller reporting company. See the definitions of “large accelerated filer”, “accelerated filer” and “smaller reporting company” in Rule 12b-2 of the Exchange Act.

Indicate by check mark whether the Registrant is a shell company (as defined in Rule 12b-2 of the Act).   Yes  o     No  x

The aggregate market value of voting stock held by nonaffiliates of the Registrant, computed by reference to the closing price and shares outstanding, was approximately $62.6 billion as of January 31, 2011 (approximately $56.3 billion as of June 30, 2010, the last business day of the Registrant’s most recently completed second quarter).

Shares of common stock outstanding at January 31, 2011: 711,805,978.

DOCUMENTS INCORPORATED BY REFERENCE

Parts of the Company’s definitive proxy statement (to be filed pursuant to Regulation 14A within 120 days after Registrant’s fiscal year-end of December 31, 2010) for its annual meeting to be held on May 10, 2011, are incorporated by reference in this Form 10-K in response to Part III, Items 10, 11, 12, 13 and 14.

This document (excluding exhibits) contains 124 pages.

The table of contents is set forth on page 2. The exhibit index begins on page 121.

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3M COMPANY

FORM 10-K

For the Year Ended December 31, 2010

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3M COMPANY

ANNUAL REPORT ON FORM 10-K

For the Year Ended December 31, 2010

PART I

Item 1. Business.

3M Company was incorporated in 1929 under the laws of the State of Delaware to continue operations begun in 1902. The Company’s ticker symbol is MMM. As used herein, the term “3M” or “Company” includes 3M Company and its subsidiaries unless the context indicates otherwise. In this document, for any references to Note 1 through Note 19, refer to the Notes to Consolidated Financial Statements in Item 8.

Available Information

The SEC maintains a website that contains reports, proxy and information statements, and other information regarding issuers, including the Company, that file electronically with the SEC. The public can obtain any documents that the Company files with the SEC at http://www.sec.gov. The Company files annual reports, quarterly reports, proxy statements and other documents with the Securities and Exchange Commission (SEC) under the Securities Exchange Act of 1934 (Exchange Act). The public may read and copy any materials that the Company files with the SEC at the SEC’s Public Reference Room at 100 F Street, N.E., Washington, D.C. 20549. The public may obtain information on the operation of the Public Reference Room by calling the SEC at 1-800-SEC-0330.

3M also makes available free of charge through its website (http://investor.3M.com) the Company’s Annual Report on Form 10-K, Quarterly Reports on Form 10-Q, Current Reports on Form 8-K, and, if applicable, amendments to those reports filed or furnished pursuant to the Exchange Act as soon as reasonably practicable after the Company electronically files such material with, or furnishes it to, the SEC.

General

3M is a diversified technology company with a global presence in the following businesses: Industrial and Transportation; Health Care; Display and Graphics; Consumer and Office; Safety, Security and Protection Services; and Electro and Communications. 3M is among the leading manufacturers of products for many of the markets it serves. Most 3M products involve expertise in product development, manufacturing and marketing, and are subject to competition from products manufactured and sold by other technologically oriented companies.

At December 31, 2010, the Company employed 80,057 people (full-time equivalents), with 32,955 employed in the United States and 47,102 employed internationally.

Business Segments

As discussed in Note 17 to the Consolidated Financial Statements, effective in the first quarter of 2010, 3M made certain product moves between its business segments in its continuing effort to drive growth by aligning businesses around markets and customers. Segment information presented herein reflects the impact of these changes for all periods presented.

3M continues to manage its operations in six operating business segments: Industrial and Transportation; Health Care; Display and Graphics; Consumer and Office; Safety, Security and Protection Services; and Electro and Communications. 3M’s six business segments bring together common or related 3M technologies, enhancing the development of innovative products and services and providing for efficient sharing of business resources. These segments have worldwide responsibility for virtually all 3M product lines. Certain small businesses and lab-sponsored products, as well as various corporate assets and expenses, are not attributed to the business segments. Financial information and other disclosures relating to 3M’s business segments and operations in major geographic areas are provided in the Notes to Consolidated Financial Statements.

Industrial and Transportation Business: The Industrial and Transportation segment serves a broad range of markets, such as appliance, paper and packaging, food and beverage, electronics, automotive original equipment manufacturer (OEM) and automotive aftermarket (auto body shops and retail). Industrial and Transportation products include tapes, a wide variety of coated and non-woven abrasives, adhesives, specialty materials, filtration products, energy control products, closure systems for personal hygiene products, acoustic systems products, and

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components and products that are used in the manufacture, repair and maintenance of automotive, marine, aircraft and specialty vehicles.

Major industrial products include vinyl, polyester, foil and specialty industrial tapes and adhesives; Scotch® Masking Tape, Scotch® Filament Tape and Scotch® Packaging Tape; packaging equipment; 3M™ VHB™ Bonding Tapes; conductive, low surface energy, hot melt, spray and structural adhesives; reclosable fasteners; label materials for durable goods; and coated, nonwoven and microstructured surface finishing and grinding abrasives for the industrial market. 3M Purification Inc. (previously referred to as CUNO Incorporated), provides a comprehensive line of filtration products for the separation, clarification and purification of fluids and gases. Other industrial products include fluoroelastomers for seals, tubes and gaskets in engines; and engineering fluids. In addition, this segment provides 3M™ Scotchtint™ Window Film for buildings; 3M™ Ultra Safety and Security Window Film for property and personal protection during destructive weather conditions; closure systems for personal hygiene products; and acoustic systems products.

Major transportation products include insulation components, including components for catalytic converters; functional and decorative graphics; abrasion-resistant films; masking tapes; fasteners and tapes for attaching nameplates, trim, moldings, interior panels and carpeting; coated, nonwoven and microstructured finishing and grinding abrasives; structural adhesives; and other specialty materials. In addition, 3M provides paint finishing and detailing products, including a complete system of cleaners, dressings, polishes, waxes and other products.

Health Care Business: The Health Care segment serves markets that include medical clinics and hospitals, pharmaceuticals, dental and orthodontic practitioners, and health information systems. Products and services provided to these and other markets include medical and surgical supplies, skin health and infection prevention products, inhalation and transdermal drug delivery systems, dental and orthodontic products (oral care), health information systems, and food safety products.

In the medical and surgical areas, 3M is a supplier of medical tapes, dressings, wound closure products, orthopedic casting materials, electrodes and stethoscopes. In infection prevention, 3M markets a variety of surgical drapes, masks and preps, as well as sterilization assurance equipment. Other products include drug delivery systems, such as metered-dose inhalers, transdermal skin patches and related components. In addition, in the fourth quarter of 2010, 3M acquired Arizant Inc., a manufacturer of patient warming solutions designed to prevent hypothermia in surgical settings. Dental and orthodontic products include restoratives, adhesives, finishing and polishing products, crowns, impression materials, preventive sealants, professional tooth whiteners, prophylaxis and orthodontic appliances. In health information systems, 3M develops and markets computer software for hospital coding and data classification, and provides related consulting services. 3M provides food safety products that make it faster and easier for food processors to test the microbiological quality of food.

Display and Graphics Business: The Display and Graphics segment serves markets that include electronic display, traffic safety and commercial graphics. This segment includes optical film solutions for LCD electronic displays; computer screen filters; reflective sheeting for transportation safety; commercial graphics sheeting and systems; and mobile interactive solutions, including mobile display technology, visual systems products, and computer privacy filters.

The optical film business provides films that serve numerous market segments of the electronic display industry. 3M provides distinct products for five market segments, including products for: 1) LCD computer monitors, 2) LCD televisions, 3) hand-held devices such as cellular phones, 4) notebook PCs and 5) automotive displays. In traffic safety systems, 3M provides reflective sheetings used on highway signs, vehicle license plates, construction work-zone devices, trucks and other vehicles, and also provides pavement marking systems. Major commercial graphics products include films, inks, digital signage systems and related products used to produce graphics for vehicles, signs and interior surfaces. The mobile interactive solutions business focuses on bringing technology to the projection market, including mobile display technology in addition to its visual communication products that serve the world’s office and education markets with overhead projectors and transparency films, as well as equipment and materials for electronic and multimedia presentations. In addition, this business includes desktop and notebook computer screen filters that address needs for light control, privacy viewing and glare reduction.

Consumer and Office Business: The Consumer and Office segment serves markets that include consumer retail, office retail, home improvement, building maintenance and other markets. Products in this segment include office supply products, stationery products, construction and home improvement products (do-it-yourself), home care products, protective material products, certain consumer retail personal safety products, and consumer health care products. Major consumer and office products include Scotch® brand products, such as Scotch® Magic™ Tape, Scotch® Glue Stick and Scotch® Cushioned Mailer; Post-it® Products, such as Post-it® Flags, Post-it® Note Pads,

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Post-it® Labeling & Cover-up Tape, and Post-it® Pop-up Notes and Dispensers; construction and home improvement products, including surface-preparation and wood-finishing materials, Command™ Adhesive Products and Filtrete™ Filters for furnaces and air conditioners; home care products, including Scotch-Brite® Scour Pads, Scotch-Brite® Scrub Sponges, Scotch-Brite™ Microfiber Cloth products, O-Cel-O™ Sponges and Scotchgard™ Fabric Protectors; protective material products; certain maintenance-free respirators; certain consumer retail personal safety products, including safety glasses and hearing protectors; and Nexcare™ Adhesive Bandages. In July 2009, 3M acquired ACE® branded (and related brands) elastic bandage, supports and thermometer product lines.

Safety, Security and Protection Services Business: The Safety, Security and Protection Services segment serves a broad range of markets that increase the safety, security and productivity of workers, facilities and systems. Major product offerings include personal protection products, safety and security products (including border and civil security solutions), cleaning and protection products for commercial establishments, track and trace solutions, and roofing granules for asphalt shingles. In the fourth quarter of 2010, 3M acquired Cogent Inc. and Attenti Holdings S.A. Cogent Inc. is a provider of finger, palm, face and iris biometric systems for governments, law enforcement agencies, and commercial enterprises. Attenti Holdings S.A. is a supplier of remote people-monitoring technologies used for offender-monitoring applications and to assist eldercare facilities in monitoring and enhancing the safety of patients. In April 2008, 3M acquired Aearo Holding Corp., the parent company of Aearo Technologies Inc. (hereafter referred to as Aearo). Aearo manufactures and sells personal protection and energy absorbing products, which expanded 3M’s platform by adding hearing protection as well as eyewear and fall protection product lines to 3M’s existing line of respiratory products. The consumer retail portion of Aearo’s business is included in 3M’s Consumer and Office business segment. The thermal acoustic systems portion of Aearo’s business is included in 3M’s Industrial and Transportation business segment.

This segment’s products include certain maintenance-free and reusable respirators, personal protective equipment, electronic surveillance products, films that protect against counterfeiting, and reflective materials that are widely used on apparel, footwear and accessories, enhancing visibility in low-light situations. 3M’s Track and Trace Solutions business utilizes radio frequency identification (RFID) technology to provide a growing array of solutions — from library patron self-checkout systems to tracking packages. Other products include spill-control sorbents; 3M™ Thinsulate™ Insulation and 3M™ Thinsulate™ Lite Loft™ Insulation; nonwoven abrasive materials for floor maintenance and commercial cleaning; floor matting; and natural and color-coated mineral granules for asphalt shingles. In the second quarter of 2008, 3M completed the sale of its HighJump Software business which provided supply chain execution software solutions.

Electro and Communications Business: The Electro and Communications segment serves the electrical, electronics and communications industries, including electrical utilities; electrical construction, maintenance and repair; original equipment manufacturer (OEM) electrical and electronics; computers and peripherals; consumer electronics; telecommunications central office, outside plant and enterprise; as well as aerospace, military, automotive and medical markets; with products that enable the efficient transmission of electrical power and speed the delivery of information. Products include electronic and interconnect solutions, microinterconnect systems, high-performance fluids, high-temperature and display tapes, telecommunications products, electrical products, and touch screens and touch monitors.

Major electronic and electrical products include packaging and interconnection devices; high-performance fluids used in the manufacture of computer chips, and for cooling electronics and lubricating computer hard disk drives; high-temperature and display tapes; insulating materials, including pressure-sensitive tapes and resins; and related items. 3M™ Flexible Circuits use electronic packaging and interconnection technology, providing more connections in less space, and are used in ink-jet print cartridges, cell phones and electronic devices. This segment serves the world’s telecommunications companies with a wide array of products for fiber-optic and copper-based telecommunications systems for rapid deployment in fixed and wireless networks. The 3M™ Aluminum Conductor Composite Reinforced (ACCR) electrical power cable, with an aluminum-based metal matrix at its core, increases transmission capacity for existing power lines. The touch systems business includes touch screens and touch monitors.

Distribution

3M products are sold through numerous distribution channels, including directly to users and through numerous wholesalers, retailers, jobbers, distributors and dealers in a wide variety of trades in many countries around the world. Management believes the confidence of wholesalers, retailers, jobbers, distributors and dealers in 3M and its products — a confidence developed through long association with skilled marketing and sales representatives — has contributed significantly to 3M’s position in the marketplace and to its growth.

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Research and Patents

Research and product development constitutes an important part of 3M’s activities and has been a major driver of 3M’s sales growth. Research, development and related expenses totaled $1.434 billion in 2010, $1.293 billion in 2009 and $1.404 billion in 2008. Research and development, covering basic scientific research and the application of scientific advances in the development of new and improved products and their uses, totaled $919 million in 2010, $838 million in 2009 and $851 million in 2008. Related expenses primarily include technical support provided by 3M to customers who are using existing 3M products; internally developed patent costs, which include costs and fees incurred to prepare, file, secure and maintain patents; and amortization of acquired patents.

The Company’s products are sold around the world under various trademarks. The Company also owns, or holds licenses to use, numerous U.S. and foreign patents. The Company’s research and development activities generate a steady stream of inventions that are covered by new patents. Patents applicable to specific products extend for varying periods according to the date of patent application filing or patent grant and the legal term of patents in the various countries where patent protection is obtained. The actual protection afforded by a patent, which can vary from country to country, depends upon the type of patent, the scope of its coverage and the availability of legal remedies in the country.

The Company believes that its patents provide an important competitive advantage in many of its businesses. In general, no single patent or group of related patents is in itself essential to the Company as a whole or to any of the Company’s business segments. The importance of patents in the Display and Graphics segment is described in “Performance by Business Segment” — “Display and Graphics Business” in Part II, Item 7, of this Form 10-K.

Raw Materials

In 2010, the Company experienced cost increases in most raw materials and transportation fuel costs. This was driven by higher basic feedstock costs, particularly oil-derived materials and metals. To date, the Company is receiving sufficient quantities of all raw materials to meet its reasonably foreseeable production requirements. It is impossible to predict future shortages of raw materials or the impact any such shortages would have. 3M has avoided disruption to its manufacturing operations through careful management of existing raw material inventories and development and qualification of additional supply sources. 3M manages commodity price risks through negotiated supply contracts, price protection agreements and forward physical contracts.

Environmental Law Compliance

3M’s manufacturing operations are affected by national, state and local environmental laws around the world. 3M has made, and plans to continue making, necessary expenditures for compliance with applicable laws. 3M is also involved in remediation actions relating to environmental matters from past operations at certain sites. Refer to the “Environmental Matters and Litigation” section in Note 14, Commitments and Contingencies, for more detail.

Environmental expenditures relating to existing conditions caused by past operations that do not contribute to current or future revenues are expensed. Reserves for liabilities related to anticipated remediation costs are recorded on an undiscounted basis when they are probable and reasonably estimable, generally no later than the completion of feasibility studies or the Company’s commitment to a plan of action. Environmental expenditures for capital projects that contribute to current or future operations generally are capitalized and depreciated over their estimated useful lives.

In 2010, 3M invested about $12 million in capital projects to protect the environment. This amount excludes expenditures for remediation actions relating to existing matters caused by past operations that do not contribute to current or future revenues, which are expensed. Capital expenditures for environmental purposes have included pollution control devices — such as wastewater treatment plant improvements, scrubbers, containment structures, solvent recovery units and thermal oxidizers — at new and existing facilities constructed or upgraded in the normal course of business. Consistent with the Company’s policies stressing environmental responsibility, capital expenditures (other than for remediation projects) for known projects are presently expected to be about $30 million over the next two years for new or expanded programs to build facilities or modify manufacturing processes to minimize waste and reduce emissions.

While the Company cannot predict with certainty the future costs of such cleanup activities, capital expenditures or operating costs for environmental compliance, the Company does not believe they will have a material effect on its capital expenditures, earnings or competitive position.

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Executive Officers

Following is a list of the executive officers of 3M, and their age, present position, the year elected to their present position and other positions they have held during the past five years. No family relationships exist among any of the executive officers named, nor is there any undisclosed arrangement or understanding pursuant to which any person was selected as an officer. This information is presented as of the date of the 10-K filing (February 16, 2011).

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Executive Officers (continued)

Cautionary Note Concerning Factors That May Affect Future Results

This Annual Report on Form 10-K, including “Management’s Discussion and Analysis of Financial Condition and Results of Operations” in Item 7, contains forward-looking statements within the meaning of the Private Securities Litigation Reform Act of 1995. The Company may also make forward-looking statements in other reports filed with the Securities and Exchange Commission, in materials delivered to shareholders and in press releases. In addition, the Company’s representatives may from time to time make oral forward-looking statements.

Forward-looking statements relate to future events and typically address the Company’s expected future business and financial performance. Words such as “plan,” “expect,” “aim,” “believe,” “project,” “target,” “anticipate,” “intend,” “estimate,” “will,” “should,” “could” and other words and terms of similar meaning, typically identify such forward-looking statements. In particular, these include, among others, statements relating to the Company’s

·                                           strategy for growth, future revenues, earnings, cash flow, uses of cash and other measures of financial performance, and market position,

·                                           worldwide economic and capital markets conditions, such as interest rates, foreign currency exchange rates, and financial conditions of our suppliers and customers,

·                                           new business opportunities, product development, and future performance or results of current or anticipated products,

·                                           the scope, nature or impact of acquisition, strategic alliance and divestiture activities,

·                                           the outcome of contingencies, such as legal and regulatory proceedings,

·                                           future levels of indebtedness, common stock repurchases and capital spending,

·                                           future availability of and access to credit markets,

·                                           pension and postretirement obligation assumptions and future contributions, asset impairments, tax liabilities, and

·                                           the effects of changes in tax, environmental and other laws and regulations in the United States and other countries in which we operate.

The Company assumes no obligation to update or revise any forward-looking statements.

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. Important information as to these factors can be found in this document, including, among others, “Management’s Discussion and Analysis of Financial Condition and Results of Operations” under the headings of “Overview”, “Critical Accounting Estimates” and “Financial Condition and Liquidity.”  Discussion of these factors is incorporated by reference from Part I, Item 1A, “Risk Factors,” of this document, and should be considered an integral part of Part II, Item 7, “Management’s Discussion and Analysis of Financial Condition and Results of Operations.”  For additional information concerning factors that may cause actual results to vary materially from those stated in the forward-looking statements, see our reports on Form 10-K, 10-Q and 8-K filed with the SEC from time to time.

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Item 1A. Risk Factors

Provided below is a cautionary discussion of what we believe to be the most important risk factors applicable to the Company. Discussion of these factors is incorporated by reference into and considered an integral part of Part II, Item 7, “Management’s Discussion and Analysis of Financial Conditions and Results of Operations.”

* Results are impacted by the effects of, and changes in, worldwide economic and capital markets conditions. The Company operates in more than 65 countries and derives approximately two-thirds of its revenues from outside the United States. The Company’s business is subject to global competition and may be adversely affected by factors in the United States and other countries that are beyond its control, such as disruptions in financial markets or downturns in economic activity in specific countries or regions, or in the various industries in which the Company operates; social, political or labor conditions in specific countries or regions; or adverse changes in the availability and cost of capital, interest rates, tax rates, or regulations in the jurisdictions in which the Company operates.

* The Company’s credit ratings are important to 3M’s cost of capital. The major rating agencies routinely evaluate the Company’s credit profile and assign debt ratings to 3M. The Company currently has an AA- credit rating, with a stable outlook, from Standard & Poor’s and an Aa2 credit rating, with a stable outlook, from Moody’s Investors Service. This evaluation is based on a number of factors, which include financial strength, business and financial risk, as well as transparency with rating agencies and timeliness of financial reporting. The Company’s current ratings have served to lower 3M’s borrowing costs and facilitate access to a variety of lenders. Failure to maintain the current ratings level would adversely affect the Company’s cost of funds and could adversely affect liquidity and access to capital markets.

* The Company’s results are affected by competitive conditions and customer preferences. Demand for the Company’s products, which impacts revenue and profit margins, is affected by (i) the development and timing of the introduction of competitive products; (ii) the Company’s response to downward pricing to stay competitive; (iii) changes in customer order patterns, such as changes in the levels of inventory maintained by customers and the timing of customer purchases which may be affected by announced price changes, changes in the Company’s incentive programs, or the customer’s ability to achieve incentive goals; and (iv) changes in customers’ preferences for our products, including the success of products offered by our competitors, and changes in customer designs for their products that can affect the demand for some of the Company’s products.

* Foreign currency exchange rates and fluctuations in those rates may affect the Company’s ability to realize projected growth rates in its sales and earnings. Because the Company’s financial statements are denominated in U.S. dollars and approximately two-thirds of the Company’s revenues are derived from outside the United States, the Company’s results of operations and its ability to realize projected growth rates in sales and earnings could be adversely affected if the U.S. dollar strengthens significantly against foreign currencies.

* The Company’s growth objectives are largely dependent on the timing and market acceptance of its new product offerings, including its ability to continually renew its pipeline of new products and to bring those products to market. This ability may be adversely affected by difficulties or delays in product development, such as the inability to identify viable new products, obtain adequate intellectual property protection, or gain market acceptance of new products. There are no guarantees that new products will prove to be commercially successful.

* The Company’s future results are subject to fluctuations in the costs and availability of purchased components, compounds, raw materials and energy, including oil and natural gas and their derivatives, due to shortages, increased demand, supply interruptions, currency exchange risks, natural disasters and other factors. The Company depends on various components, compounds, raw materials, and energy (including oil and natural gas and their derivatives) supplied by others for the manufacturing of its products. It is possible that any of its supplier relationships could be interrupted due to natural and other disasters and other events, or be terminated in the future. Any sustained interruption in the Company’s receipt of adequate supplies could have a material adverse effect on the Company. In addition, while the Company has a process to minimize volatility in component and material pricing, no assurance can be given that the Company will be able to successfully manage price fluctuations or that future price fluctuations or shortages will not have a material adverse effect on the Company.

* Acquisitions, strategic alliances, divestitures, and other unusual events resulting from portfolio management actions and other evolving business strategies, and possible organizational restructuring could affect future results. The Company monitors its business portfolio and organizational structure and has made and may continue to make acquisitions, strategic alliances, divestitures and changes to its organizational structure. With respect to acquisitions,

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future results will be affected by the Company’s ability to integrate acquired businesses quickly and obtain the anticipated synergies.

* The Company’s future results may be affected if the Company generates fewer productivity improvements than estimated. The Company utilizes various tools, such as Lean Six Sigma, to improve operational efficiency and productivity. There can be no assurance that all of the projected productivity improvements will be realized.

* The Company’s future results may be affected by various legal and regulatory proceedings and legal compliance risks, including those involving product liability, antitrust, environmental, the U.S. Foreign Corrupt Practices Act and other anti-bribery, anti-corruption, or other matters. The outcome of these legal proceedings may differ from the Company’s expectations because the outcomes of litigation, including regulatory matters, are often difficult to reliably predict. Various factors or developments can lead the Company to change current estimates of liabilities and related insurance receivables where applicable, or make such estimates for matters previously not susceptible of reasonable estimates, such as a significant judicial ruling or judgment, a significant settlement, significant regulatory developments or changes in applicable law. A future adverse ruling, settlement or unfavorable development could result in future charges that could have a material adverse effect on the Company’s results of operations or cash flows in any particular period. For a more detailed discussion of the legal proceedings involving the Company and the associated accounting estimates, see the discussion in Note 14 “Commitments and Contingencies” within the Notes to Consolidated Financial Statements.

Item 1B. Unresolved Staff Comments.

None.

Item 2. Properties.

3M’s general offices, corporate research laboratories, and certain division laboratories are located in St. Paul, Minnesota. The Company operates 76 manufacturing facilities in 28 states. The Company operates 115 manufacturing and converting facilities in 38 countries outside the United States.

3M owns the majority of its physical properties. 3M’s physical facilities are highly suitable for the purposes for which they were designed. Because 3M is a global enterprise characterized by substantial intersegment cooperation, properties are often used by multiple business segments.

Item 3. Legal Proceedings.

Discussion of legal matters is incorporated by reference from Part II, Item 8, Note 14, “Commitments and Contingencies,” of this document, and should be considered an integral part of Part I, Item 3, “Legal Proceedings.”

Item 4. Removed and Reserved.

PART II

Item 5. Market for Registrant’s Common Equity, Related Stockholder Matters and Issuer Purchases of Equity Securities.

Equity compensation plans’ information is incorporated by reference from Part III, Item 12, “Security Ownership of Certain Beneficial Owners and Management and Related Stockholder Matters,” of this document, and should be considered an integral part of Item 5. At January 31, 2011, there were 104,261 shareholders of record. 3M’s stock is listed on the New York Stock Exchange, Inc. (NYSE), the Chicago Stock Exchange, Inc., and the SWX Swiss Exchange. Cash dividends declared and paid totaled $.525 per share for each quarter of 2010, and $.51 per share for each quarter of 2009. Stock price comparisons follow:

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Stock price comparisons (NYSE composite transactions)

Issuer Purchases of Equity Securities

Repurchases of 3M common stock are made to support the Company’s stock-based employee compensation plans and for other corporate purposes. In February 2007, 3M’s Board of Directors authorized a two-year share repurchase of up to $7.0 billion for the period from February 12, 2007 to February 28, 2009. In February 2009, 3M’s Board of Directors extended this share repurchase authorization with no pre-established end date. In February 2011, 3M’s Board of Directors replaced the Company’s existing repurchase program with a new repurchase program. This new program authorizes the repurchase of up to $7.0 billion of 3M’s outstanding common stock, with no pre-established end date.

Issuer Purchases of Equity

Securities (registered pursuant to

Section 12 of the Exchange Act)

(1)          The total number of shares purchased includes: (i) shares purchased under the Board’s authorizations described above, and (ii) shares purchased in connection with the exercise of stock options.

(2)          The total number of shares purchased as part of publicly announced plans or programs includes shares purchased under the Board’s authorizations described above.

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Item 6. Selected Financial Data.

Items included in the preceding table which had a significant impact on results are summarized as follows. 2010 included a one-time, non-cash income tax charge of $84 million, or 12 cents per diluted share, resulting from the March 2010 enactment of the Patient Protection and Affordable Care Act, including modifications made in the Health Care and Education Reconciliation Act of 2010. 2009 results included net losses that decreased operating income by $194 million and net income attributable to 3M by $119 million. 2009 included restructuring actions ($209 million pre-tax, $128 million after tax and noncontrolling interest), which were partially offset by a gain on sale of real estate ($15 million pre-tax, $9 million after tax). 2008 results included net losses that decreased operating income by $269 million and net income attributable to 3M by $194 million. 2008 included restructuring actions ($229 million pre-tax, $147 million after-tax and noncontrolling interest), exit activities ($58 million pre-tax, $43 million after-tax) and losses related to the sale of businesses ($23 million pre-tax, $32 million after-tax), which were partially offset by a gain on sale of real estate ($41 million pre-tax, $28 million after-tax). 2007 results included net gains that increased operating income by $681 million and net income attributable to 3M by $448 million. 2007 included gains related to the sale of businesses ($849 million pre-tax, $550 million after-tax) and a gain on sale of real estate ($52 million pre-tax, $37 million after-tax), which were partially offset by increases in environmental liabilities ($134 million pre-tax, $83 million after-tax), restructuring actions ($41 million pre-tax, $27 million after-tax), and exit activities ($45 million pre-tax, $29 million after-tax). 2006 results included net gains that increased operating income by $523 million and net income attributable to 3M by $438 million. 2006 included net benefits from gains related to the sale of certain portions of 3M’s branded pharmaceuticals business ($1.074 billion pre-tax, $674 million after-tax) and favorable income tax adjustments ($149 million), which were partially offset by restructuring actions ($403 million pre-tax, $257 million after-tax), acquired in-process research and development expenses ($95 million pre-tax and after-tax), settlement costs of an antitrust class action ($40 million pre-tax, $25 million after-tax), and environmental obligations related to the pharmaceuticals business ($13 million pre-tax, $8 million after-tax).

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Item 7. Management’s Discussion and Analysis of Financial Condition and Results of Operations.

Management’s Discussion and Analysis of Financial Condition and Results of Operations (MD&A) is designed to provide a reader of 3M’s financial statements with a narrative from the perspective of management. 3M’s MD&A is presented in eight sections:

·       Overview

·       Results of Operations

·       Performance by Business Segment

·       Performance by Geographic Area

·       Critical Accounting Estimates

·       New Accounting Pronouncements

·       Financial Condition and Liquidity

·       Financial Instruments

OVERVIEW

3M is a diversified global manufacturer, technology innovator and marketer of a wide variety of products. As discussed in Note 17 to the Consolidated Financial Statements, effective in the first quarter of 2010, 3M made certain product moves between its business segments in its continuing effort to drive growth by aligning businesses around markets and customers. The financial information presented herein reflects the impact of these changes for all periods presented. 3M manages its operations in six operating business segments: Industrial and Transportation; Health Care; Display and Graphics; Consumer and Office; Safety, Security and Protection Services; and Electro and Communications.

Fourth-quarter 2010 sales grew nearly 10 percent to $6.7 billion, despite negative comparisons from H1N1 and moderating sales growth in optical films for LCD TVs. Sales growth was broad-based, with organic sales volumes expanding in all businesses, led by a 19.8 percent increase in Electro and Communications and a 14.7 percent increase in Display and Graphics. Geographically, organic sales volume was strongest in Asia Pacific at 18.1 percent and Latin America at 12.2 percent. Net income attributable to 3M in the fourth quarter of 2010 was $928 million, or $1.28 per diluted shares, compared to $935 million, or $1.30 per diluted share, in the fourth quarter of 2009. Fourth-quarter income was penalized by year-on-year H1N1-related comparisons, increases in raw material costs, and investments to accelerate future growth. 3M continues to invest in research and development, sales and marketing (including advertising and merchandising investments), and also incurred acquisition-related costs in the fourth quarter. 3M made several large fourth-quarter 2010 acquisitions, including Arizant Inc., Attenti Holdings S.A. and Cogent Inc.

For total year 2010, 3M achieved record net sales and diluted earnings per share, while investing significantly to improve long-term growth. For example, research, development and related expenses of $1.4 billion helped to drive innovation and new product sales. 3M also accelerated sales and marketing investments in high-growth markets to help secure future growth. The Company posted 2010 sales of $26.7 billion and earnings of $5.63 per diluted share, up 15.3 percent and 24.6 percent, respectively. All businesses posted positive organic volume growth, led by Electro and Communications at 26.9 percent, Display and Graphics at 26.5 percent, and Industrial and Transportation at 16.9 percent. Including special items (discussed below), net income attributable to 3M in 2010 was $4.085 billion, or $5.63 per diluted share, compared to $3.193 billion or $4.52 per diluted share, in 2009, and $3.460 billion, or $4.89 per diluted share, in 2008.

In 2010, 3M recorded a one-time, non-cash income tax charge of $84 million, or 12 cents per diluted share, resulting from the March 2010 enactment of the Patient Protection and Affordable Care Act, including modifications made in the Health Care and Education Reconciliation Act of 2010. Refer to the special items discussion at the end of this overview section for more detail.

3M has been aggressively restructuring the company since early 2008 and continued this effort through the third quarter of 2009, with these restructuring actions and exit activities resulting in an aggregate reduction of approximately 6,400 positions. The related net restructuring charges and other special items reduced net income attributable to 3M for year 2009 by $119 million, or $0.17 per diluted share. Special items reduced net income attributable to 3M for year 2008 by $194 million, or $0.28 per diluted share. Refer to the special items discussion at the end of this overview section for more detail. These restructuring actions and exit activities resulted in savings of almost $400 million in 2009 and additional incremental savings of more than $150 million in 2010, with the majority of

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2010’s benefit in the first half of the year. In addition, 3M amended its policy regarding banked vacation in 2009, which added more than $100 million to operating income in 2009, with a benefit of approximately $80 million in 2010.

Sales in 2009 totaled $23.1 billion, a decrease of 8.5 percent from 2008. In 2009, the global economic slowdown dramatically affected comparisons for 3M’s businesses. Substantial end-market declines and inventory takedowns in major industries, including automotive, consumer electronics and general industrial manufacturing, resulted in significantly lower sales and income. Accordingly, 3M reduced its cost structure, lowered manufacturing output and intensified its attention to operational improvement. The combination of these actions drove operating income margins of 20.8 percent in 2009, compared to 20.6 percent in 2008. Restructuring charges and other special items reduced this operating income margin by approximately one percentage point in both 2009 and 2008.

In 2010, four of 3M’s six business segments posted sales increases in excess of 10 percent. Operating income margins were 21 percent or higher in all six of the Company’s business segments. The following table contains sales and operating income results by business segment for the years ended December 31, 2010 and 2009.

In 2010, sales increased 15.3 percent, led by Electro and Communications at 28.4 percent, Display and Graphics at 24.0 percent, Industrial and Transportation at 18.7 percent, and Consumer and Office at 11.0 percent. Sales growth in these business segments was led by consumer electronics, automotive OEM, renewable energy, and broad-based consumer and office growth, as well as sales growth in those businesses that serve the broad industrial manufacturing sector. Local-currency sales (which includes volume, selling price and acquisition impacts, but excludes divestiture and translation impacts) increased 14.4 percent. Foreign currency effects added 1.0 percent to sales, while divestiture impacts reduced sales by 0.1 percent. Operating income margins for the 2010 were 22.2 percent, compared to 20.8 percent in 2009. Refer to the section entitled “Performance by Business Segment” and “Performance by Geographic Area” later in MD&A for discussion by business segment and geographic area of sales change and items that impacted reported operating income. Refer to Note 17 for discussion of Corporate and Unallocated and Elimination of Dual Credit.

3M generated $5.2 billion of operating cash flows in 2010, an increase of $233 million when compared to 2009. This followed an increase of $408 million when comparing 2009 to 2008. In 2010, the Company utilized approximately $1.5 billion of cash to pay dividends. In February 2011, 3M’s Board of Directors authorized the repurchase of up to $7.0 billion of 3M’s outstanding common stock, replacing the Company’s existing repurchase program. This authorization has no pre-established end date. The Company repurchased $854 million of 3M common stock in 2010. In 2009, with the Company’s emphasis on maintaining ample liquidity and enhancing balance sheet strength, share repurchase activity was minimal, as no broker repurchases of stock were made. This compared to repurchases of 3M common stock of $1.6 billion in 2008. In February 2011, 3M’s Board of Directors authorized a dividend increase of 4.8 percent for 2011, marking the 53rd consecutive year of dividend increases for 3M. 3M’s debt to total capital ratio (total capital defined as debt plus equity) at December 31, 2010 was 25 percent, compared to 30 percent at December 31, 2009, and 39 percent at December 31, 2008. A portion of the increase in debt at year-end 2008 was the result of a strategy to build and maintain a cash buffer in the U.S. given the difficult market environment at that point in time. 3M has an AA- credit rating with a stable outlook from Standard & Poor’s and an Aa2 credit rating

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with a stable outlook from Moody’s Investors Service. In addition to cash on hand, the Company has sufficient access to capital markets to meet currently anticipated growth and acquisition investment funding needs.

In 2010, the Company experienced cost increases in most raw materials and transportation fuel costs. This was driven by higher basic feedstock costs, particularly oil-derived materials and metals. To date the Company is receiving sufficient quantities of all raw materials to meet its reasonably foreseeable production requirements. It is impossible to predict future shortages of raw materials or the impact any such shortages would have. 3M has avoided disruption to its manufacturing operations through careful management of existing raw material inventories and development and qualification of additional supply sources. 3M manages commodity price risks through negotiated supply contracts, price protection agreements and forward physical contracts.

In 2011, 3M expects sales growth of 10 percent or more, with organic sales volume growing 5.5 to 7.5 percent, currency effects adding 1 to 2 percent (assuming December 31, 2010 exchange rates), and acquisitions adding 4 to 6 percent for the year. This expected sales growth and related incremental operating income, including a benefit from currency effects (assuming December 31, 2010 exchange rates), should more than offset the items that will negatively impact earnings, as summarized below.

There are a few major items that will negatively impact earnings in 2011. First, as discussed further below, 3M expects that pension and postretirement expense will decrease 2011 earnings, when compared to 2010, by approximately 22 cents per diluted share. A banked vacation policy change made in 2009 will also negatively impact earnings in 2011. Prior to 2009, 3M allowed employees to bank a certain amount of unused vacation. Effective January 1, 2009, 3M employees were given two years to use their previously banked vacation, with the resulting reduction in 3M’s liability benefiting both 2009 and 2010 operating results. This change resulted in an estimated 8 cent per diluted share benefit in 2010 results, which will not carry-over into 2011, and thus, will negatively impact 2011 versus 2010 comparisons. Finally, 3M’s early assessment of the income tax rate indicates an expected 2011 effective tax rate of approximately 29.5 percent compared to 27.7 percent for 2010.

On a worldwide basis, 3M’s pension and postretirement plans were 90 percent funded at year-end 2010. The U.S. qualified plan, which is approximately 71 percent of the worldwide pension obligation, was 97 percent funded, the non-qualified pension plan was not funded, and the international pension plans were 89 percent funded. Asset returns in 2010 for the U.S. qualified plan were 14.4% while the year-end 2010 discount rate was 5.23%, down 0.54 percentage points from the 2009 discount rate of 5.77%. 3M expects to contribute $400 million to $600 million of cash to its global pension and postretirement plans in 2011. The Company does not have a required minimum pension contribution obligation for its U.S. plans in 2011. 3M expects pension and postretirement benefit expense in 2011 to increase by approximately $213 million pre-tax, or 22 cents per diluted share, when compared to 2010. Refer to critical accounting estimates within MD&A and Note 11 (Pension and Postretirement Benefit Plans) for additional information concerning 3M’s pension and post-retirement plans.

Forward-looking statements in Item 7 may involve risks and uncertainties that could cause results to differ materially from those projected (refer to the section entitled “Cautionary Note Concerning Factors That May Affect Future Results” in Item 1 and the risk factors provided in Item 1A for discussion of these risks and uncertainties).

Special Items:

Special items represent significant charges or credits that are important to understanding changes in the Company’s underlying operations.

In 2010, 3M recorded a one-time, non-cash income tax charge of $84 million, or 12 cents per diluted share, resulting from the March 2010 enactment of the Patient Protection and Affordable Care Act, including modifications made in the Health Care and Education Reconciliation Act of 2010 (collectively, the “Act”). The charge is due to a reduction in the value of the company’s deferred tax asset as a result of the Act’s change to the tax treatment of Medicare Part D reimbursements. This item is discussed in more detail in Note 8 (Income Taxes).

In 2009, net losses for restructuring and other actions decreased operating income by $194 million and net income attributable to 3M by $119 million, or $0.17 per diluted share. 2009 included restructuring actions ($209 million pre-tax, $128 million after tax and noncontrolling interest), which were partially offset by a gain on sale of real estate ($15 million pre-tax, $9 million after tax). The gain on sale of real estate relates to the June 2009 sale of a New Jersey roofing granule facility, which is recorded in cost of sales within the Safety, Security and Protection Services business segment. Restructuring is discussed in more detail in Note 4 (Restructuring Actions and Exit Activities).

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In 2008, net losses for restructuring and other actions decreased operating income by $269 million and net income attributable to 3M by $194 million, or $0.28 per diluted share. 2008 included restructuring actions ($229 million pre-tax, $147 million after-tax and noncontrolling interest), exit activities ($58 million pre-tax, $43 million after-tax) and losses related to the sale of businesses ($23 million pre-tax, $32 million after-tax), which were partially offset by a gain on sale of real estate ($41 million pre-tax, $28 million after-tax). Divestiture impacts, restructuring actions and exit activities are discussed in more detail in Note 2 (Acquisitions and Divestitures) and Note 4 (Restructuring Actions and Exit Activities). Concerning the real estate gain, 3M received proceeds and recorded a gain in 2008 for a sale-leaseback transaction relative to an administrative location in Italy.

RESULTS OF OPERATIONS

Net Sales:

In 2010, local-currency sales increased 14.4 percent. All major geographic areas showed local-currency sales increases, led by Asia Pacific. Worldwide local-currency sales growth was led by Electro and Communications at 27 percent, Display and Graphics at 23 percent, Industrial and Transportation at 17.5 percent and Consumer and Office at 10 percent. Refer to the sections entitled “Performance by Business Segment” and “Performance by Geographic Area” later in MD&A for additional discussion of sales change.

In 2009, local-currency sales declined 5.6 percent. All major geographic areas showed local-currency declines, with the exception of the combined Latin America and Canada area, which was flat. Health Care had local-currency sales growth of 3.6 percent, while all other business segments experienced declines. Fourth-quarter 2009 local-currency sales increased 6.4 percent, with all business segments and major geographic areas showing improvement.

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Operating Expenses:

As discussed in the preceding overview section, 2009 included restructuring charges, partially offset by a gain on sale of real estate, which combined decreased operating income by $194 million, or 0.9 percent of net sales. In 2008, the combination of restructuring actions, exit activities and a loss on sale of businesses, partially offset by a gain on sale of real estate, decreased operating income by $269 million, or 1.1 percent of net sales. There were no special items that impacted operating income in 2010. The following tables summarize the 2009 and 2008 special items by income statement caption.

Cost of Sales:

Cost of sales includes manufacturing, engineering and freight costs. Cost of sales, measured as a percent of net sales, was 51.9 percent in 2010, a decrease of 0.5 percentage points from 2009. A number of positive factors impacted year-on-year results. These factors included 13.7 percent growth in organic sales volume, improved factory utilization levels, along with cost savings related to prior years’ restructuring actions. In addition, 2009 included a penalty of 0.5 percentage points (as a percent of net sales) related to special items. As discussed in Note 4 (Restructuring Actions and Exit Activities), in 2009, 3M recorded $209 million in restructuring charges, of which $110 million was recorded in cost of sales. This was partially offset by a $15 million gain on sale of a New Jersey roofing granule facility, which was also recorded in cost of sales. In addition, 3M decided to swap Venezuelan bolivars into U.S. dollars in 2009, given the economic conditions in Venezuela at that time, which also negatively impacted cost of sales in 2009. These year-on-year net benefits were partially offset by pricing impacts, as selling prices declined 0.2 percent year-on-year, and raw material prices increased approximately 2 percent year-on-year on a gross basis.

Cost of sales as a percent of net sales decreased 0.5 percentage points in 2009 compared to 2008. As discussed above, 2009 included a net penalty of 0.5 percentage points, or $95 million, related to special items. In 2008, $122 million in restructuring and exit activities were recorded in cost of sales. Thus, restructuring and other items were $27 million lower year-on-year, benefiting cost of sales by 0.1 percentage point. Other benefits to cost of sales as a percent of net sales included increases in selling prices and a slight decrease in material costs. The Company was also able to mitigate organic volume declines through reductions in 3M’s manufacturing cost structure. Finally, in

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response to deteriorating conditions in Venezuela, 3M Venezuela swapped bolivars into U.S. dollars in 2009. While increasing cost of sales, these actions mitigated 3M’s exposure to future exchange rate risks.

Selling, General and Administrative Expenses:

Selling, general and administrative (SG&A) expenses increased 12 percent in 2010 when compared to 2009. In 2010, sales and marketing expenses increased 14 percent, which included advertising and promotion investment increases of over 20 percent in 2010. These increased investments are expected to help drive sales volumes, both now and into the future. In addition, 3M has increased both sales coverage and its marketing strength, particularly in faster-growing emerging economies. In 2010, general and administrative costs remained under control, as these costs increased at approximately half the rate of 2010 sales growth. SG&A expenses, measured as a percent of net sales, decreased 0.7 percentage points in 2010 compared to 2009. As indicated in Note 4, restructuring expenses of $91 million were recorded in SG&A expenses in 2009. Measured as a percent of sales, these restructuring expenses increased 2009 SG&A expenses by 0.4 percentage points.

Selling, general and administrative (SG&A) expenses as a percent of net sales increased 0.4 percentage points in 2009 when compared to 2008, but decreased $338 million in dollars, helped by savings from restructuring and other actions. In the sales and marketing area, advertising and merchandising costs were down year-on-year, but were up in the fourth quarter. As indicated above, restructuring expenses increased 2009 SG&A expenses as a percent of sales by 0.4 percentage points. In 2008, restructuring actions and exit activities, net of a gain on sale of real estate, increased SG&A by $111 million, which increased SG&A as a percent of sales by 0.5 percentage points. In the fourth quarter of 2008, as part of its restructuring program, 3M took aggressive actions to reduce general and administrative expenses and also pared back selling and marketing costs in certain businesses.

Research, Development and Related Expenses:

Research, development and related expenses (R&D) increased 11 percent in 2010 compared to 2009, as 3M continued to support its key growth initiatives. R&D as a percent of net sales declined to 5.4 percent from 5.6 percent in both 2009 and 2008. R&D expenses in dollars declined approximately 8 percent in 2009 compared to 2008. Overall dollar spending in 2009 was impacted by company-wide cost initiatives, such as reductions in indirect spending.

Gain/Loss from Sale of Businesses:

In June 2008, 3M completed the sale of HighJump Software to Battery Ventures, a technology venture capital and private equity firm. 3M received proceeds of $85 million for this transaction and recognized, net of assets sold, transaction and other costs, a pre-tax loss of $23 million (recorded in the Safety, Security and Protection Services segment) in the second quarter of 2008.

Operating Income:

3M uses operating income as one of its primary business segment performance measurement tools. Operating income was 22.2 percent of sales in 2010, compared to 20.8 percent of sales in 2009 and 20.6 percent of sales in 2008. 2009 was negatively impacted by restructuring expenses, net of a gain on sale of real estate, which combined decreased operating income by 0.9 percentage points ($194 million). 2008 was negatively impacted by restructuring actions, exit activities and a loss on sale of businesses that were partially offset by a gain on sale of real estate, which combined decreased operating income by 1.1 percentage points ($269 million).

Interest Expense and Income:

Interest Expense: Interest expense decreased in 2010, driven by lower average U.S. debt balances and lower interest rates. Interest expense increased slightly in 2009, primarily due to higher average U.S. long-term debt balances largely offset by benefits from reduced short-term balances and lower interest rates.

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Interest Income: In 2010, interest income was basically unchanged from 2009, with higher average cash and cash equivalent balances largely offset by lower interest rates. Interest income declined in 2009 when compared to 2008, primarily due to lower yields on investments.

Provision for Income Taxes:

The effective tax rate for 2010 was 27.7 percent, compared with 30.0 percent in 2009 and 31.1 percent in 2008. The most significant item that decreased the effective tax rate in both 2010 and 2009 related to international taxes. In 2010, this was due primarily to the 2010 tax benefits resulting from the corporate alignment transactions that allowed the Company to increase its ownership of a foreign subsidiary. The transactions are described in the section of Note 6 entitled “Purchase of Subsidiary Shares and Transfers of Ownership Interest Involving Non-Wholly Owned Subsidiaries.”

The effective tax rate for 2010 also includes a one-time income tax charge of $84 million as a result of the March 2010 enactment of the Patient Protection and Affordable Care Act, including modifications made in the Health Care and Education Reconciliation Act of 2010. Adjustments to income tax reserves and the Domestic Manufacturer’s deduction also benefited year-on-year effective tax rates.

On December 17, 2010, the provision for the research and development credit was extended by the “2010 Tax Relief Act” for expenditures incurred up to December 31, 2012. The provision for the credit had expired on December 31, 2009. The Company recognized the full year benefit of the credit in the fourth quarter of 2010. The benefit of the credit for the full year in 2010 is not materially different from the full year benefit in 2009.

The company currently expects that its effective tax rate for total year 2011 will be approximately 29.5 percent. The rate can vary from quarter to quarter due to discrete items, such as the settlement of income tax audits and changes in tax laws, as well as recurring factors, such as the geographic mix of income before taxes.

Refer to Note 8 for further discussion of income taxes.

Net Income Attributable to Noncontrolling Interest:

Net income attributable to noncontrolling interest represents the elimination of the income or loss attributable to non-3M ownership interests in 3M consolidated entities. The changes in noncontrolling interest amounts are primarily related to Sumitomo 3M Limited (Japan), which is 3M’s most significant consolidated entity with non-3M ownership interests. As of December 31, 2010, 3M’s effective ownership in Sumitomo 3M Limited is 75 percent.

Currency Effects:

Currency Effects: 3M estimates that year-on-year currency effects, including hedging impacts, increased net income attributable to 3M by approximately $15 million in 2010 and decreased net income attributable to 3M by approximately $220 million in 2009. This estimate includes the effect of translating profits from local currencies into U.S. dollars; the impact of currency fluctuations on the transfer of goods between 3M operations in the United States and abroad; and transaction gains and losses, including derivative instruments designed to reduce foreign currency exchange rate risks and the negative impact of swapping Venezuelan bolivars into U.S. dollars. 3M estimates that year-on-year derivative and other transaction gains and losses decreased net income attributable to 3M by approximately $115 million in 2010 and had an immaterial impact in 2009.

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PERFORMANCE BY BUSINESS SEGMENT

Disclosures relating to 3M’s business segments are provided in Item 1, Business Segments. Financial information and other disclosures are provided in the Notes to the Consolidated Financial Statements. As discussed in Note 17 to the Consolidated Financial Statements, effective in the first quarter of 2010, 3M made certain product moves between its business segments in its continuing effort to drive growth by aligning businesses around markets and customers. Segment information presented herein reflects the impact of these changes for all periods presented. The reportable segments are Industrial and Transportation; Health Care; Display and Graphics; Consumer and Office; Safety, Security and Protection Services; and Electro and Communications. Information related to 3M’s business segments is presented in the tables that follow. Local-currency sales change amounts are separated into organic local-currency sales (which include both organic volume impacts plus selling price impacts) and acquisition impacts. The divestiture impact, translation impact and total sales change are also provided for each segment.

As discussed in the preceding overview and results of operations section, the combination of restructuring actions and other special items significantly impacted 2009 and 2008 results. There were no special items that impacted operating income in 2010. The following tables summarize these special items by business segment.