Myriant to Participate in the Milken Institute
2013 Global Conference

Boston, MA (April 24, 2013) – Myriant Corporation today announced that Stephen J. Gatto, Myriant's Chairman and CEO, will participate in the Milken Institute Global Conference as part of panel titled "For Renewable Energy, a Painful Transition to Maturity," on Wednesday, May 1st, 2013, from 11:15 a.m. — 12:15 p.m. PST. The Global Conference will take place at the Beverly Hilton Hotel in Beverly Hills, California.

The Milken Institute Global Conference convenes some of the world's most extraordinary people to explore solutions to today's most pressing challenges in business, health, government and education. More information is available at http://www.milkeninstitute.org/events/events.taf.

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