The Board of Directors of 3M (NYSE:MMM) today declared a dividend on the company’s common stock of 50 cents per share for the second quarter of 2008, payable June 12, 2008, to shareholders of record at the close of business on May 23, 2008. This cash dividend is the 367th consecutive quarterly dividend paid by 3M.

As of March 31, 2008, 3M had 704,287,501 common shares outstanding and 121,209 shareholders of record.

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 75,000 people worldwide and has operations in more than 60 countries. For more information, visit www.3M.com.

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