Royal DSM N.V. (NYSE Euronext: DSM KON), the global Life Sciences and Materials Sciences company headquartered in the Netherlands, today announces that its indirect wholly-owned subsidiary, Greenback Acquisition Corporation, has commenced its tender offer for all outstanding shares of common stock of Martek Biosciences Corporation (NASDAQ: MATK) at a price of $31.50 per share.

The tender offer is being made in connection with the Agreement and Plan of Merger, dated as of 20 December 2010, by and among DSM, Greenback Acquisition Corporation and Martek, which DSM and Martek announced on 21 December 2010.

The Martek board of directors has unanimously determined that, among other things, the offer is fair to and in the best interests of Martek's stockholders and unanimously recommends that Martek's stockholders accept the offer and tender their shares.

The tender offer is scheduled to expire at 5:00 p.m. (New York City time) on Friday, 18 February 2011, unless the offer is extended.

Complete terms and conditions of the tender offer are set forth in the Offer to Purchase, Letter of Transmittal and other related materials that will be filed by DSM and Greenback Acquisition Corporation with the SEC on 13 January 2011. In addition, on 13 January 2011, Martek will file a Solicitation/Recommendation Statement on Schedule 14D-9 with the SEC relating to the offer.

Copies of the Offer to Purchase, Letter of Transmittal and other related materials are available free of charge from MacKenzie Partners, Inc., the information agent for the tender offer, toll-free at (800) 322-2885. The dealer manager for the tender offer is J.P. Morgan Securities LLC. Citibank, N.A. is acting as depositary for the tender offer.

DSM - the Life Sciences and Materials Sciences Company
Royal DSM N.V. creates solutions that nourish, protect and improve performance. Its end markets include human and animal nutrition and health, personal care, pharmaceuticals, automotive, coatings and paint, electrical and electronics, life protection and housing. DSM manages its business with a focus on the triple bottom line of economic performance, environmental quality and social responsibility, which it pursues simultaneously and in parallel. DSM has annual net sales of about €8 billion and employs some 22,700 people worldwide. The company is headquartered in the Netherlands, with locations on five continents. DSM is listed on Euronext Amsterdam. More information: www.dsm.com