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 6 1/8% Senior Subordinated Notes due 2015 (the “6 1/8% Notes”). This action is part of the refinancing transactions previously announced on April 20, 2010.

As of May 3, 2010, $500 million in aggregate principal amount of 6 1/8% Notes is outstanding. In accordance with the terms of the indenture governing the 6 1/8% Notes, they will be redeemed on July 1, 2010 (the “Redemption Date”) at a price of 103.063% of their principal amount, plus accrued and unpaid interest to, but excluding, the Redemption Date.

The Bank of New York Mellon, the trustee for the 6 1/8% Notes, is mailing a Notice of Redemption to all registered holders of the 6 1/8% Notes today. Copies of such Notice of Redemption and additional information relating to the procedure for redemption of the 6 1/8% 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 more than $10 billion, we have approximately 35,000 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.

The following constitutes a “Safe Harbor” statement under the Private Securities Litigation Reform Act of 1995: This press release contains forward-looking statements that involve a number of risks and uncertainties. Important factors that could cause actual results to differ materially from those indicated by such forward-looking statements are set forth in the company’s Annual Report on Form 10-K for the year ended December 31, 2009, under the caption “Risk Factors,” which is on file with the Securities and Exchange Commission and available in the “Investors” section of our Website under the heading “SEC Filings.” Important factors that could cause actual results to differ materially from those indicated by forward-looking statements include risks and uncertainties relating to: competition and its effect on pricing, spending, third-party relationships and revenues; the need to develop new products and adapt to significant technological change; implementation of strategies for improving internal growth; general worldwide economic conditions and related uncertainties; dependence on customers’ capital spending policies and government funding policies; the effect of exchange rate fluctuations on international operations; use and protection of intellectual property; the effect of changes in governmental regulations; the effect of laws and regulations governing government contracts; the effect of competing with certain of our customers and suppliers; and the effect of healthcare reform legislation. While we may elect to update forward-looking statements at some point in the future, we specifically disclaim any obligation to do so, even if our estimates change and, therefore, you should not rely on these forward-looking statements as representing our views as of any date subsequent to today.