Sigma-Aldrich Extends Laboratory Chemicals Contract with Honeywell

Sigma-Aldrich^® Corporation (NASDAQ: SIAL) announced today it has signed a five-year contract extension with Honeywell for the manufacture and supply of Riedel-de Haën^® high purity solvents, Karl Fischer reagents and other laboratory chemicals produced at Honeywell's Seelze, Germany, manufacturing site. The contract extends an existing supply agreement, in place since 1999, through March 31, 2019.

"Securing the supply of analytical products from Honeywell will help support and extend our product line and enables Sigma-Aldrich to continue offering a comprehensive breadth of reagents and standards to customers around the globe," said Russel Gant, Sigma-Aldrich Vice President, Analytical.

Honeywell products are key additions to the Sigma-Aldrich analytical portfolio and are recognized for reliable performance in analytical laboratories. The products include:

HYDRANAL^®, a leading product for Karl Fischer titration for more than 30 years;

PESTANAL^®, the industry's broadest pesticide standards offering;

CHROMASOLV^®, high purity solvents for chromatography;

VETRANAL^™, standards for ingredients in veterinary pharmaceuticals, and

AQUANAL^™, chemicals used in the analysis of water.

As part of the agreement, Honeywell will continue to supply a range of services to Sigma-Aldrich in Seelze, Germany, including advanced laboratory and warehouse services and Sigma-Aldrich will continue to provide shipping, forwarding and small package filling at the Honeywell facility.

Cautionary Statement: The foregoing release contains forward-looking statements that can be identified by terminology such as "will continue" or similar expressions, or by expressed or implied discussions regarding potential future revenues from products derived therefrom. You should not place undue reliance on these statements. Such forward-looking statements reflect the current views of management regarding future events, and involve known and unknown risks, uncertainties and other factors that may cause actual results to be materially different from any future results, performance or achievements expressed or implied by such statements. There can be no guarantee that the Honeywell products will assist the Company to achieve any particular levels of revenue in the future. In particular, management's expectations regarding products associated with Honeywell could be affected by, among other things, unexpected regulatory actions or delays or government regulation generally; the Company's ability to obtain or maintain patent or other proprietary intellectual property protection; competition in general; government, industry and general public pricing pressures; the impact that the foregoing factors could have on the values attributed to the Company's assets and liabilities as recorded in its consolidated balance sheet, and other risks and factors referred to in Sigma-Aldrich's current Form 10-K on file with the US Securities and Exchange Commission. Should one or more of these risks or uncertainties materialize, or should underlying assumptions prove incorrect, actual results may vary materially from those anticipated, believed, estimated or expected. Sigma-Aldrich is providing the information in this press release as of this date and does not undertake any obligation to update any forward-looking statements contained in this press release as a result of new information, future events or otherwise.

About Sigma-Aldrich: Sigma-Aldrich is a leading Life Science and High Technology company. Our biochemical and organic chemical products and kits are used in scientific research, including genomic and proteomic research, biotechnology, pharmaceutical development, and as key components in pharmaceutical, diagnostic and other high technology manufacturing. We have customers in life science companies, university and government institutions, hospitals and in industry. Over one million scientists and technologists use our products. Sigma-Aldrich operates in 40 countries and has 8,300 employees providing excellent service worldwide. We are committed to accelerating our Customers' success through leadership in Life Science, High Technology and Service. For more information about Sigma-Aldrich, please visit our award winning web site at www.sigma-aldrich.com.

Sigma-Aldrich, HYDRANAL, PESTANAL AND CHROMASOLV are registered trademarks of Sigma-Aldrich Co. LLC, in the US and other countries. VETRANAL and AQUANAL are trademarks of Sigma-Aldrich Co. LLC, in the US and other countries. Riedel-de Haën is a registered trademark of Honeywell International Inc.