Sipex to be Listed on NASDAQ

MILPITAS, Calif., April 10 /PRNewswire-FirstCall/ -- Sipex Corporation , today announced it has received notification that its common stock is approved for listing on The NASDAQ Capital Market Exchange. Sipex has been informed that its common stock will trade upon the opening of the market on April 11th, 2007 under the symbol "SIPX".

"We are excited to return to NASDAQ," said Ray Wallin, chief financial officer for Sipex. "With our listing we close out this difficult chapter in Sipex's history, and we are extremely grateful for the continued support of our shareholders, customers, and employees. We believe that relisting is an important step forward for the company and our shareholders. The stability and coverage of NASDAQ furthers our efforts to deliver growth and enhance shareholder value. It also provides both the market visibility and access that are of paramount importance to institutional investors."

"It's been a tremendous amount of work, but our new management team has surmounted many significant financial and compliance challenges. A very small percentage of companies ever make it off of the pink sheets in order to be listed again on NASDAQ," continued Mr. Wallin.

"The NASDAQ listing also comes at a time when our operational changes are starting to make an impact to our key financial metrics," said Ralph Schmitt, Sipex's chief executive officer. "We are driving towards profitability with the major changes we have made in our cost structure and manufacturing strategy. The recent analog market slowdown has not deterred our progress towards this effort. We also continue to gain traction with key customers in order to move the company forward and increase shareholder value."

About Sipex Corporation

Sipex Corporation is a semiconductor company that designs, manufactures and markets high performance, value-added analog integrated circuits (IC). Sipex serves the broad analog signal processing market with interface, power management and optical storage ICs for use in automotive, portable products, computing, communications, and networking infrastructure markets. The company is headquartered in Milpitas, California with additional offices in Belgium, Canada, China, Germany, Japan and Taiwan. Sipex sells products direct and through its distribution channels. For more information about Sipex, visit http://www.sipex.com/.

Safe Harbor Statement Regarding Forward Looking Statements

This press release contains forward-looking statements concerning Sipex's future events including, but not limited to statements about the market visibility and access provided to the Company by being listed on the NASDAQ, the Company's ability to deliver growth and enhanced shareholder value, that operational changes made by the Company will make an impact to key financial metrics and that the Company will continue to gain traction with key customers, statements regarding the Company's beliefs, plans, expectations or intentions regarding the future are forward-looking statements, within the meaning of Section 27A of the Securities Act of 1933, as amended, and Section 21E of the Securities Exchange Act of 1934, as amended. All such forward looking statements are made pursuant to the safe harbor provisions of the Private Securities Litigation Reform Act of 1995. These forward-looking statements are predictions and involve risks and uncertainties, such that actual results may differ significantly. These risks include, but are not limited to, the risk that Sipex may not benefit from the stability and coverage of the NASDAQ, that the Company may not benefit from the market visibility and access provided to the Company by being listed on the NASDAQ, or the risks that the Company's may not be able to deliver growth and enhance shareholder value, that operational changes made by the Company will not continue to make an impact to key financial metrics and that the Company will not continue to gain traction with key customers. The Company disclaims any intention or obligation to publicly update or revise any forward-looking statements, whether as a result of events or circumstances after the date hereof or to reflect the occurrence of unanticipated events. For further discussion of these risks and uncertainties, we refer you to the documents the Company files with the SEC from time to time, including the Company's Annual Report on Form 10-K for the year ended December 30, 2006. All forward-looking statements are made as of today, and the Company disclaims any duty to update such statements.

For additional information, contact: Ralph Schmitt, Chief Executive Officer Phone: [phone] Fax: [phone] Email: [e-mail]