Metabolix, Inc. to Present at Piper Jaffray Consumer Conference

Business Wire, June 4, 2007

CAMBRIDGE, Mass. -- Metabolix, Inc. (NASDAQ: MBLX), a company developing and commercializing environmentally sustainable and totally biodegradable Mirel(TM) natural plastic, today announced that it will be presenting at the Piper Jaffray & Co. Consumer Conference taking place on June 6 - 7,2007 in New York City.

Jay Kouba, the Company's Chairman & Chief Executive Officer, will be presenting on Thursday, June 6, 2007 at 8:30 a.m. (Eastern). The presentation will be webcast and can be accessed on the company's website at www.metabolix.com in the Investor Relations section under the Webcasts & Presentations tab.

For those unable to listen to the presentation live, the webcast will be archived for 60 days and can be accessed using the link above. A copy of management's presentation will also be available on the website at www.metabolix.com in the Investor Relations section under the Webcasts & Presentations tab.

About Metabolix

Founded in 1992, Metabolix, Inc. is an innovation driven bioscience company providing clean, sustainable solutions for the world's needs for plastics, fuels, and chemicals. The Company is taking a systems approach, from gene to end product, to integrate sophisticated biotechnology with advanced industrial practice, and is now developing and commercializing environmentally sustainable and totally biodegradable Mirel(TM) natural plastic as a clean alternative to petroleum-based plastics. In addition to its microbial fermentation platform for producing Mirel(TM) natural plastic, Metabolix is also developing a proprietary platform technology for co-producing, in biomass energy crops such as switchgrass, natural plastics and biomass for biofuels such as ethanol and for chemical products. For more information, please visit www.metabolix.com. (MBLX-G)