At December 31, 2004, the Company employed 67,071 people, with 32,648 employed in the United States and 34,423 employed internationally.

3M manages its operations in seven operating business segments: Health Care; Industrial; Display and Graphics; Consumer and Office; Safety, Security and Protection Services; Electro and Communications; and Transportation.

Health Care Business: The Health Care segment serves markets that include medical, surgical, pharmaceutical, dental and orthodontic, health information systems and personal care. Products provided to these markets include medical and surgical supplies, skin health and infection prevention products, pharmaceuticals, drug delivery systems, dental and orthodontic products, health information systems, microbiology products, and closures for disposable diapers.

In the medical and surgical area, 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. Pharmaceutical products include immune response modifiers, respiratory products and women's health products. Other products include drug delivery systems, such as metered-dose inhalers, transdermal skin patches and related components. Dental and orthodontic products include restoratives, adhesives, finishing and polishing products, crowns, impression materials, preventive sealants, professional tooth whiteners, prophylaxis and orthodontic appliances. In early 2001, 3M combined its German dental business with ESPE Dental AG, a leading German supplier of crowns, bridges and other dental products. In December 2002, 3M purchased the remaining 43% minority interest of these operations.

In health information systems, 3M develops and markets computer software for hospital coding and data classification, as well as providing related consulting services. 3M provides microbiology products that make it faster and easier for food processors to test the microbiological quality of food. Tape closures for disposable diapers, and reclosable fastening systems and other diaper components help disposable diapers fit better.

Industrial Business: The Industrial segment serves a broad range of industrial markets, from appliance and electronics to paper and packaging and food and beverage. Products include tapes, a wide variety of coated and non-woven abrasives, adhesives, specialty materials and supply chain execution software solutions.

Major product lines include vinyl, polyester, foil and specialty industrial tapes and adhesives; Scotchr Masking Tape, Scotchr Filament Tape and Scotchr Packaging Tape; packaging equipment; 3MT VHBT 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. Other products include fluoroelastomers for seals, tubes and gaskets in engines; engineering fluids; and high-performance fluids used in the manufacture of computer chips, and for electronics cooling and lubricating of computer hard disk drives. In early 2003, 3M acquired 100% of the common shares of Solvay Fluoropolymers, with manufacturing facilities located in Decatur, Alabama. In early 2004, 3M purchased HighJump Software, Inc., a U.S. company that provides supply chain execution software and solutions.

Display and Graphics Business: The Display and Graphics segment serves markets that include electronic display, touch screen, traffic safety and commercial graphics. This segment includes optical film and lens solutions for electronic displays; touch screens and touch monitors; reflective sheeting for transportation safety; and commercial graphics systems.

Optical products include display enhancement films for electronic displays, lens systems for projection televisions, and touch screens and touch monitors. In December 2002, 3M acquired Corning Precision Lens, Inc., a manufacturer of lens systems for projection televisions. This acquisition is part of the optical systems product line. In traffic safety systems, 3M provides reflective sheetings used on highway signs, vehicle license plates, construction workzone devices, trucks and other vehicles, and also provides pavement marking systems. 3M's Intelligent Transportation Systems (ITS) include emergency response and transit signal priority systems, traffic monitoring systems, and driver feedback signs. Major commercial graphic products include equipment, films, inks and related products used to produce graphics for vehicles and signs. In the fourth quarter of 2004, 3M announced the phase out of its commercial videotape business.

Consumer and Office Business: The Consumer and Office segment serves markets that include consumer retail, office retail, education, home improvement, building maintenance and other markets. Products in this segment include office supply products, stationery products, construction and home improvement/home care products, protective material products, and visual systems products.

Major consumer and office products include Scotchr brand products like Scotchr MagicT Tape, Scotchr Glue Stick and Scotchr Cushioned Mailer; Post-itr Note products, such as Post-itr Flags, Post- itr Memo Pads, Post-itr Labels, and Post-itr Pop-up Notes and Dispensers; home care products, including Scotch-Briter Scour Pads, Scotch-Briter Scrub Sponges, Scotch-Briter Microfiber Cloth products, O-Cel-OT Sponges and ScotchgardT Fabric Protectors; home improvement products, including surface-preparation and wood-finishing materials; FiltreteT Filters for furnaces and air conditioners; CommandT Adhesive products; and 3MT NexcareT Adhesive Bandages. Visual communication products serve the world's office and education markets with overhead projectors and transparency films, plus equipment and materials for electronic and multimedia presentations.

Safety, Security and Protection Services Business: The Safety, Security and Protection Services segment serves a broad range of markets that strive to increase the safety, security and productivity of workers, facilities and systems.

Major product offerings include personal protection products, safety and security products, energy control products, cleaning and protection products for commercial establishments, and roofing granules for asphalt shingles.

This segment's products include maintenance-free and reusable respirators, 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. Other products include theft protection systems for libraries and library patron self-checkout systems; spill-control sorbents; ThinsulateT Insulation and ThinsulateT Lite LoftT Insulation; 3MT ScotchtintT Window Film for buildings; 3MT ScotchshieldT Ultra Safety and Security Film for property; nonwoven abrasive materials for floor maintenance and commercial cleaning; floor matting; and natural and color-coated mineral granules for asphalt shingles. In March 2004, 3M completed the acquisition of Hornell Holding AB, a global supplier of personal protective equipment.

Electro and Communications Business: The Electro and Communications segment serves manufacturers of electronic and electrical equipment, as well as the construction and maintenance segments of electric utilities, telecommunications and other industries, with products that speed the delivery of information and ideas, while also reducing costs. Products include electronic and interconnect solutions, microinterconnect systems, telecommunications products and electrical products.

Major electronic and electrical products include packaging and interconnection devices; insulating materials, including pressure-sensitive tapes and resins; and related items. 3MT 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.

Transportation Business: The Transportation segment serves markets that include automotive, automotive aftermarket, marine, aerospace and specialty vehicle markets. This segment provides components and products that are used in the manufacture, repair and maintenance of automotive, marine, aircraft and specialty vehicles.

Major product categories 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. This segment also provides paint finishing and detailing products, including a complete system of cleaners, dressings, polishes, waxes and other products.

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