Myriant to Present at Notable Industry Conferences in April

Boston, MA (April 24, 2012)— Myriant Corporation today announced that Product Technology and Applications Manager, Michael Mang, will present at the "Durable BioPlastics" Conference, on Thursday, April 26, from 8:15 a.m. to 8:45 a.m. CDT, in Minneapolis, MN. Mr. Mang will discuss how developments in the commercial availability of bio-based monomers for poly(butylene succinate) (PBS) will expand the potential market into a broad range of new applications in a presentation titled "Enabling PBS: Bio-based SAC and 1,4-Butanediol."

The "Durable Bioplastics" Conference will be held from Wednesday, April 25, to Thursday, April 26 at the Hilton Minneapolis in Minneapolis, Minnesota.

In addition, Myriant's Vice President of Sales and Marketing, Alif Saleh, will present at the "World Congress on Industrial Biotechnology and Bioprocessing," on Monday, April 30, from 8:30 a.m. to 10:00 a.m. EDT, in Orlando, Florida. Mr. Saleh will be speaking as part of the "Renewable Chemical Platforms and Bio-based Materials Track" Breakout Session, during "The Succinic Acid Platform" panel. The "World Congress on Industrial Biotechnology and Bioprocessing" will be held from Sunday, April 29, to Tuesday, May 2, at the Gaylord Palms Resort and Convention Center.

About Myriant Corporation

Myriant utilizes its proprietary technology platform to develop innovative, performance-based, renewable chemicals utilizing low-cost sugars. In December 2010, Myriant broke ground on its flagship 30 million pound commercial bio-succinic acid facility in Lake Providence, Louisiana and anticipates beginning commercial production in early 2013. The company's D(-) lactic acid started production at commercial scale in June 2008 for use in polylactic acid. Myriant has agreements with ThyssenKrupp Uhde GmbH for engineering, Davy Process Technology for the integration of Myriant's bio-succinic acid process with the Davy butanediol process for the production of bio-based butanediol, and PTT Chemical for the commercialization of Myriant's technology in Southeast Asia. Myriant is headquartered in Quincy, Massachusetts. Details are available at www.myriant.com.

Contact:

Sue Hager SVP, Corporate Communications and Government Affairs
Myriant Corporation
shager@myriant.com
617-657-5222