3M today announced that it will participate in the following investor conferences:

• Electrical Products Group 2011 Annual Conference on Tuesday, May 17, 2011, in Longboat Key, Fla.; David W. Meline, senior vice president and chief financial officer will speak at 7:30 a.m. ET.
• Sanford C. Bernstein’s 27^th Annual Strategic Decisions Conference 2011 on Friday, June 3, 2011, in New York; George W. Buckley, chairman, president and chief executive officer, will begin speaking at 8 a.m. ET.
• 2011 J.P. Morgan’s 6^th Annual Diversified Industries Conference on Tuesday, June 7, 2011, in New York; David W. Meline, senior vice president and chief financial officer, will speak at 4 p.m. ET.
• William Blair & Company’s 31^st Annual Growth Stock Conference on Wednesday, June 15, 2011, in Chicago; David W. Meline, senior vice president and chief financial officer, will speak at 8:40 a.m. CT.

Further presentation details will be available on 3M’s Investor Relations home page at http://investor.3M.com/ shortly before the events.

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 or follow @3MNews on Twitter.

3MMedia Contact:Jacqueline Berry651-733-3611orInvestor Contacts:Matt Ginter651-733-8206orBruce Jermeland651-733-1807