3M to Webcast Second-Quarter Earnings Conference Call

June 27, 2007

ST. PAUL, Minn.--(BUSINESS WIRE)--3M (NYSE:MMM) today announced that it will webcast its second-quarter 2007 earnings conference call on Thursday, July 26, 2007, at 8 a.m. CT.

Investors can access the webcast on the Internet at http://investor.3M.com. A replay will be available at http://investor.3M.com, for one week following the call.

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 Scotch, Post-it, Scotchgard, Thinsulate, Scotch-Brite, Filtrete, Command and Vikuiti. Serving customers around the world, the people of 3M 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. For more information, including the latest product and technology news, visit www.3M.com.

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

Contact:

3M
Media Contact:
Jacqueline Berry, 651-733-3611
or
Investor Contacts:
Matt Ginter, 651-733-8206
or
Bruce Jermeland, 651-733-1807

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