Prior to joining GSE, Mr. Preston served as Chief Executive Officer of Davis-Standard, LLC, a company specializing in the production of extrusion systems for the plastics processing and other industries.  Mr. Preston previously held senior positions at J.B. Poindexter, Eastman Chemical and Honeywell International.

Mr. Preston succeeds Charles A. Sorrentino who will be retiring.  Mr. Sorrentino was appointed GSE's Chief Executive Officer in 2013, after serving as the Company's interim CEO.  Under the leadership of Mr. Sorrentino, GSE emerged from Chapter 11 in August of this year with a meaningfully enhanced balance sheet.  The restructuring of GSE was led by private investment firms Littlejohn & Co., LLC and Strategic Value Partners.

"Chuck has done a terrific job stewarding GSE through a difficult time and positioning the Company for future growth.  We thank Chuck for his leadership and wish him the best," said Antonio Miranda, Managing Director of Littlejohn and member of GSE's Board of Directors.  "Looking ahead, we are very excited to partner with Bob Preston, who has significant experience in GSE's global end markets and is the right person to lead the Company as it looks to grow on a global scale."

"I am extremely excited to partner with the team at GSE.  The Company has an excellent reputation in the industry and now has solid financial footing at this crucial growth juncture.  GSE is the long-time industry leader and I am looking forward to leveraging my background to strengthen the Company's market position and help drive the next phase of growth," Mr. Preston said.

About GSE ENVIRONMENTAL

GSE is the leading global manufacturer and marketer of geosynthetic lining solutions, products and services used in the containment and management of solids, liquids and gases for organizations engaged in waste management, mining, water, wastewater and aquaculture.

GSE has a long history of manufacturing high-quality geosynthetic lining systems and developing innovative products. GSE's principal products are polyethylene-based geomembranes, geonets, geocomposites, geosynthetic clay liners, concrete protection liners and vertical barriers. GSE manufactures products primarily to line or cap hazardous and non-hazardous waste landfills, contain materials generated in certain mining processes, and contain water, liquid waste and industrial products in ponds, tanks, reservoirs, sewers and canals. Headquartered in Houston, Texas, USA, GSE maintains sales offices throughout the world and manufacturing facilities in the United States, Chile, Germany, Thailand, China and Egypt.

Media Contact:

Steve Eckhart
Vice President Global Marketing
GSE Environmental
281-230-8695

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