WALTHAM, Mass. – Thermo Fisher Scientific Inc. (NYSE: TMO), the world leader in serving science, announced today that it has given notice of its intention to redeem all of the outstanding 3.25% Convertible Senior Subordinated Notes due 2024 (the “Notes”).

As of February 25, 2011, $329,229,000 million in aggregate principal amount of the Notes was outstanding. In accordance with the terms of the indenture governing these Notes, they will be redeemed on March 30, 2011 (the “Redemption Date”), at 100% of their principal amount plus accrued and unpaid interest to the Redemption Date.

The Notes are convertible at any time prior to March 29, 2011, at a rate of 24.8756 shares of common stock per $1,000 principal amount of the Notes surrendered. The Notes surrendered for conversion will be settled in cash in accordance with the provisions of the indenture.

The Bank of New York Mellon, the trustee for the 2024 Convertible Notes, is mailing a Notice of Redemption to all registered holders of the Notes today. Copies of such Notice of Redemption and additional information relating to the procedure for redemption and/or conversion of the Notes may be obtained from The Bank of New York Mellon by calling 800-254-2826.

About Thermo Fisher Scientific

Thermo Fisher Scientific Inc. (NYSE: TMO) is the world leader in serving science. Our mission is to enable our customers to make the world healthier, cleaner and safer. With revenues of nearly $11 billion, we have approximately 37,000 employees and serve customers within pharmaceutical and biotech companies, hospitals and clinical diagnostic labs, universities, research institutions and government agencies, as well as in environmental and process control industries. We create value for our key stakeholders through two premier brands, Thermo Scientific and Fisher Scientific, which offer a unique combination of continuous technology development and the most convenient purchasing options. Our products and services help accelerate the pace of scientific discovery, and solve analytical challenges ranging from complex research to routine testing to field applications. Visit www.thermofisher.com.