Press Release

April 29, 2011

DSM – repurchase of shares (26-28 April 2011)

DSM repurchased 435,987 shares from 26 to 28 April 2011 at an average price of €45.33.

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Heerlen, NL, 29 Apr 2011 10:15 CEST

Royal DSM, the global Life Sciences and Materials Sciences company, has repurchased 435,987 of its own shares in the period from 26 April 2011 up to and including 28 April 2011 at an average price of €45.33. This is in accordance with the repurchase, covering existing option plans, announced on 23 February 2011. The consideration of this repurchase was €19.8 million.

The total number of shares repurchased under this program to date is 3,631,669 shares for a total consideration of €156.7 million.

For more information
Lieke de Jong-Tops

Senior Communications Manager
+31 45 578 2420
media.contacts@dsm.com

Dave Huizing

Vice President Investor Relations
+31 45 578 2864
investor.relations@dsm.com

Media Relations

+31 45 578 2420

Investor Relations

+31 45 578 2864