3M today announced that it will webcast its third-quarter 2008 earnings conference call on Tuesday, Oct. 21, 2008, 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 recognized leader in research and development, 3M produces thousands of innovative products for dozens of diverse markets. 3M’s core strength is applying its more than 40 distinct technology platforms – often in combination – to a wide array of customer needs. With $24 billion in sales, 3M employs 79,000 people worldwide and has operations in more than 60 countries.

3MMedia Contact:Jacqueline Berry, 651-733-3611orInvestor Contacts:Matt Ginter, 651-733-8206orBruce Jermeland, 651-733-1807