Myriant Chairman and CEO Stephen J. Gatto to Present at the Third Annual Next Generation Bio-Based Chemicals Conference

Boston, MA (January 23, 2012) — Myriant Corporation today announced that Chairman and CEO Stephen J. Gatto will deliver a keynote address at the "Third Annual Next Generation Bio-Based Chemicals Summit," on Wednesday, January 25, at 9:15 a.m. PT, in San Diego, CA. Mr. Gatto will present a review of new bio-based chemicals in development and will examine industry trends leading to successful commercialization of bio-based products. Additionally, on Wednesday, January 25, from 3:15 to 4:15 p.m. PT, Mr. Gatto will participate in a "Drop-In Chemicals" panel discussion and present the highlights of Myriant Corporation's business achievements during 2011.

This year's "Third Annual Next Generation Bio-Based Chemicals Summit" will be held from Monday, January 23, to Thursday, January 26 at the Rancho Bernardo Inn, San Diego.

About Myriant Corporation

Myriant utilizes proprietary technology to provide innovative, performance-based renewable chemicals utilizing low-cost sugars. In December 2010, Myriant broke ground on its 30 million pound commercial succinic acid facility in Lake Providence, Louisiana. The company's D(-) lactic acid started production at commercial scale in June 2008 for use in polylactic acid. Myriant has agreements with Uhde GmbH for engineering, Davy Process Technology for the integration of Myriant's 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 South East 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