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ADM Names Clinton, Iowa as Location For Mirel Plant
Mirel plant will produce renewable, biodegradable plastics from corn

March 14, 2006

Decatur, IL. Archer Daniels Midland Company (NYSE: ADM) and Metabolix have selected Clinton, Iowa as the location for the first commercial plant for Mirel bioplastics. This plant will have an initial annual capacity of 50,000 tons per year, and will produce a new generation of high performance bioplastics that are eco-friendly and based on sustainable, renewable resources.

“We are pleased to announce Clinton, Iowa as the location for the first commercial plant to produce Mirel-based plastics, which are renewable, biodegradable and suitable for multiple applications,” stated G. Allen Andreas, Chairman, Chief Executive and President of ADM. “Mirel bioplastics offer the global marketplace an alternative to traditional petroleum-derived plastics, and ADM is proud to use the farmers’ harvest to create new products for the emerging market for ag-based chemical and industrial products.”

The Mirel plant will be located adjacent to ADM’s wet corn mill in Clinton. The plant will utilize starch from the mill’s existing corn grind capacity as raw material for Mirel production.

In 2004, ADM and Metabolix announced a strategic alliance to commercialize the Metabolix proprietary Mirel technology, which is protected by over 130 issued and pending U.S. patents. Then in February, the companies announced that they would build the first commercial plant to produce Mirel bioplastics at a to-be-determined location.

Construction, expected to be complete in mid 2008, is subject to applicable governmental approvals.

Mirel bioplastics are a broad and versatile family of polymers that range in properties from rigid to elastic, and they can be converted into molded and thermoformed goods, extruded coatings and film, blown film, fibers, adhesives, and many other products. They have excellent shelf life and resistance even to hot liquids, greases, and oils, yet they biodegrade in aquatic, marine and soil environments and under anaerobic conditions such as found in septic systems and municipal waste treatment plants. They can be both hot and cold composted. They are made using proprietary processes developed by Metabolix from renewable and sustainable agricultural raw materials.

About Metabolix
Founded in 1992, Metabolix, Inc. uses sophisticated biotechnology to produce environmentally friendly performance materials from renewable resources. Metabolix is a world leader in applying the advanced tools of metabolic engineering and molecular biology to efficiently produce Mirel biobased bioplastics in microbial systems and directly in non-food plant crops. For more information, please visit http://www.metabolix.com.

About ADM
Archer Daniels Midland Company (ADM) is a world leader in agricultural processing and fermentation technology. ADM is one of the world's largest processors of soybeans, corn, wheat and cocoa. ADM is also a leader in the production of soy meal and oil, ethanol, corn sweeteners and flour. In addition, ADM produces value-added food and feed ingredients. Headquartered in Decatur, Illinois, ADM has over 25,000 employees, more than 250 processing plants and net sales for the fiscal year ended June 30, 2005 of $35.9 billion. Additional information can be found on ADM's Web site at http://www.admworld.com.

Contact information:

For Metabolix:

James J. Barber
President & CEO
(617) 492-0505 x225
barber@metabolix.com

Thomas G. Auchincloss
Chief Financial Officer
(617) 492-0505 x221
auchincloss@metabolix.com
www.metabolix.com

For ADM:
Brian Peterson
Senior Vice President-Corporate Affairs
(217) 424-5413
corpaffairs@admworld.com
www.admworld.com