Press release

Heerlen, NL, 19 Jun 2012 09:15 CEST

Royal DSM (NYSE Euronext: DSM KON), the global Life Sciences and Materials Sciences company, announced today that its tender offer to purchase all outstanding shares of common stock of Kensey Nash Corporation (NASDAQ: KNSY) at a price of $38.50 per share was successful.

The tender offer expired at 12:00 midnight, New York City time, on Monday, June 18, 2012. The depositary for the tender offer has advised that, as of such time, a total of 7,151,081 Kensey Nash shares of common stock were validly tendered and not withdrawn in the offer (including 276,900 shares tendered by notices of guaranteed delivery), representing approximately 82% of Kensey Nash’s currently outstanding shares, and approximately 79% excluding the shares tendered by notices of guaranteed delivery. DSM has accepted for payment all validly tendered shares.

As part of the merger agreement, Kensey Nash granted to DSM an irrevocable option (the “top-up option”) to purchase the number of authorized but unissued shares of Kensey Nash common stock that, when added to the number of shares owned by DSM immediately prior to exercise of the top-up option, constitutes one share more than 90% of the number of shares then outstanding. DSM plans to exercise the top-up option and to complete a short-form merger in accordance with the merger agreement within the next few days. In the short-form merger, Biomedical Acquisition Corporation will merge with and into Kensey Nash and each share of Kensey Nash common stock not tendered in the tender offer, other than those as to which holders exercise appraisal rights under Delaware law and those held by DSM or Kensey Nash or their respective wholly-owned subsidiaries, will be converted in the merger into the right to receive $38.50 per share in cash, without interest and less any required withholding taxes. This is the same price per share paid in the tender offer.

Kensey Nash

Kensey Nash is a medical device company primarily focused on regenerative medicine utilizing its proprietary collagen and synthetic polymer technology. The company is recognized as a leader for innovative product development and unique technology in the field of resorbable biomaterials. The company has an extensive range of products, which are sold through strategic partners in multiple medical markets, including the cardiology, orthopedic, sports medicine, spine, trauma, craniomaxillofacial and general surgery markets.