Myriant to Participate in U.S. DOE Biomass 2013 Conference

Quincy, MA – July 29, 2013 – Myriant Corporation today announced that Sue Hager, Myriant's Senior Vice President of Corporate Communications and Government Affairs, will participate in the U.S. Department of Energy (DOE) Event, Biomass 2013: How the Advanced Bioindustry is Reshaping American Energy. Ms. Hager will present as part of the Conference's opening plenary session titled "Celebrating Successes — The Foundation of an Advanced Bioindustry," on Wednesday, July 31st, 2013, from 10:10 a.m. — 11:30 p.m. EST. The Biomass 2013 Conference will take place at the Washington, D.C. Convention Center.

About Myriant Corporation

Myriant is a global leader innovating and commercializing bio-based chemical intermediates. Myriant enables its customers to achieve their sustainability initiatives by utilizing renewable feedstocks to produce high-value, cost-advantaged chemicals, including bio-succinic acid and its derivatives. Myriant is currently commercializing its bio-succinic acid platform from two operating chemical plants: The first is Myriant's flagship plant in Lake Providence, LA; the other, a commercial validation facility located in Leuna, Germany, which is operated by Myriant's global partner, ThyssenKrupp Uhde. Myriant, together with Johnson Matthey - Davy Technologies (JM Davy), combined the efficiencies of their respective chemical processes for the production of cost-competitive bio-BDO and bio-THF made from Myriant's bio-succinic acid, yielding overall carbon efficiency of 87%. Myriant is also advancing its proprietary, low-cost, high-purity process for bio-acrylic acid. Myriant is a 2013 Red Herring Top 100 Company in North America. More information about Myriant's pipeline of renewable chemicals can be found at www.myriant.com.

Contact:

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