October 14, 2008

Metabolix, Inc. To Present at Jefferies & Co. Investor Conference

Investor Relations:


Kathleen Heaney, 203-803-3585

[email protected]

Logo: http://www.metabolix.com

Metabolix, Inc. (NASDAQ: MBLX), a bioscience company focused on developing clean, sustainable solutions for the world's needs for plastics, chemicals and energy, today announced that it will be presenting at the Jefferies & Co. 6th Global Clean Tech Conference taking place October 22, 2008 in London.

Richard Eno, the Company's CEO, and Joseph Hill, CFO, will be presenting on Wednesday, October 22, 2008 at 11:45 a.m. (Local Time). 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 and can be accessed from the Company's website.

About Metabolix

Founded in 1992, Metabolix, Inc. is an innovation driven bioscience company focused on providing sustainable solutions for the world's needs for plastics, chemicals and energy. The Company is taking a systems approach, from gene to end product, integrating sophisticated biotechnology with advanced industrial practice. Metabolix is now developing and commercializing Mirel(TM) bioplastics, a sustainable and biodegradable alternative to petroleum based plastics. Mirel is suitable for injection molding, cast and blown film, sheet, extrusion coating, and thermoforming. Metabolix is also developing a proprietary platform technology for co-producing plastics, chemicals and energy from crops such as switchgrass, oilseeds and sugarcane. For more information, please visit www.metabolix.com. (MBLX-G)

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