Littleton, CO September 17, 2012 – ADA Carbon Solutions, an industry leading provider of activated carbon specifically tailored for flue gas applications today announced a long term enterprise agreement with Covanta Energy Corporation (NYSE: CVA). Covanta is a leading global owner and operator of Energy-from-Waste (EfW) projects.

The new agreement supports Covanta’s corporate initiative of achieving cost reductions through the formation of strategic partnerships with select suppliers. “We believe that by forming corporate partnerships with world class suppliers, we can continue to control and maintain our cost base, even in a very uncertain marketplace,” said Scott Shaw, Vice President of procurement for Covanta. “We selected ADA Carbon Solutions as our long term partner for activated carbon because we believe they are best able to help us achieve clean operations reliably and cost effectively.”

“We are excited about our new relationship with Covanta,” remarked Brian Leen, President and CEO for ADA Carbon Solutions. “We are investing aggressively in new technologies aimed at achieving improved performance in flue gas applications. We are committed to driving continuous improvement and look forward to a long and mutually beneficial relationship with Covanta.”

For Covanta, this agreement is one of a number of new or updated strategic supplier relationships being implemented across a variety of critical categories, which will continue to position them as an industry leader. For ADA Carbon Solutions, this is another critical milestone in their efforts to become recognized as the industry leader in activated carbon solutions for flue gas applications.

About ADA Carbon Solutions

ADA Carbon Solutions, LLC is a leading manufacturer of powdered activated carbon (PAC) products that are optimized for mercury removal and flue gas applications. Our flagship plant in Red River Louisiana is the largest, most automated and environmentally friendly manufacturing facility in North America. We aim to leverage our industry leading expertise in emission control and the reliability afforded by our assets to deliver superior emission control solutions. For more information visit www.ada-cs.com.

About Covanta
Covanta Energy is an internationally recognized owner and operator of large-scale Energy-from-Waste (EfW) and renewable energy projects and recipient of the Energy Innovator Award from the U.S. Department of Energy’s Office of Energy Efficiency and Renewable Energy. Covanta’s 44 Energy-from-Waste facilities provide communities with an environmentally sound solution to their solid waste disposal needs by using the municipal solid waste to generate clean, renewable energy. Annually, Covanta’s modern Energy-from-Waste facilities safely and securely convert approximately 20 million tons of waste into 9 million megawatt hours of clean, renewable electricity and approximately 9 billion pounds of steam sold to a variety of industries. For more information, visit www.covantaenergy.com.

Contact:

Covanta Media:
James Regan
862-345-5216
jregan@covantaenergy.com

Covanta Investors:
Alan Katz
862-345-5456
IR@covantaenergy.com

ADA Carbon Solutions
Sheila Glesmann
(410) 544-5292
sheila.glesmann@ada-cs.com