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3M Completes Acquisition of Advanced Chemistry & Technology Inc.

The addition of AC TECH's range of fast-curing polysulfide sealants expands 3M's product presence in the aerospace market for the manufacture and maintenance of commercial and military aircraft. AC TECH and 3M working together will better serve customers in the aerospace industry.

3M is a leading supplier to the global aerospace industry, providing innovative products such as adhesives and sealants, surface protection, and thermal acoustic solutions to original equipment manufacturers, tier suppliers and maintenance, repair and overhaul providers for the commercial and military aviation industries.

About AC TECH
Established in 1997, Advanced Chemistry & Technology, Inc. is a technology-driven manufacturer of aircraft sealants and environmentally friendly surface treatment products for the commercial, military and general aviation markets. AC TECH offers a full range of products, services and logistics solutions tailored for original equipment manufacturers, aircraft operators, as well as maintenance, repair and overhaul providers.

About 3M
3M captures the spark of new ideas and transforms them into thousands of ingenious products. Our culture of creative collaboration inspires a never-ending stream of powerful technologies that make life better. 3M is the innovation company that never stops inventing. With $27 billion in sales, 3M employs about 80,000 people worldwide and has operations in more than 65 countries. For more information, visit www.3M.com/aerospace, or follow @3MNews on Twitter.

3M
Media Contact:
Donna Fleming Runyon
651-736-7646
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Investor Contacts:
Matt Ginter
651-733-8206
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Bruce Jermeland
651-733-1807