Aegion Corporation (“Aegion” or the “Company”) (Nasdaq Global Select Market: AEGN) today announced that its subsidiary, Insituform Technologies, LLC (“Insituform”), has been awarded two contracts with a combined value of $7.4 million from Metro Water Services (“MWS”) in Nashville, Tennessee. Beginning in early 2014, Insituform crews will install Insituform® cured-in-place pipe (CIPP) in over 13 miles of 8- to 18-inch wastewater pipelines, primarily in residential areas throughout Nashville. Insituform will oversee local subcontractors and small businesses that will perform manhole rehabilitation, concrete and paving work, site preparation and restoration and lateral lining. Jeff Kowal, Vice President and General Manager of Insituform's East Region, said, “Metro Water Services is implementing its 11-year Clean Water Nashville Overflow Abatement Program to improve its wastewater system infrastructure. These improvements will provide lasting benefits for future generations and provide a clean, healthier environment for the citizens of the greater Nashville area. This is a significant undertaking and we are proud to work with MWS on its efforts to ensure local residents realize the full benefit of these rehabilitation projects. We will continue to pursue additional projects that are planned by MWS in an effort to support its program.” The projects are expected to be completed in 2014. About Aegion Corporation Aegion Corporation is a global leader in infrastructure protection and maintenance, providing proprietary technologies and services: (i) to protect against the corrosion of industrial pipelines; (ii) to rehabilitate and strengthen water, wastewater, energy and mining piping systems and buildings, bridges, tunnels and waterfront structures; and (iii) to utilize integrated professional services in engineering, procurement, construction, maintenance and turnaround services for a broad range of energy related industries. More information about Aegion can be found on our internet site at www.aegion.com. About Insituform Technologies, LLC For over forty years, Insituform Technologies, LLC, a subsidiary of Aegion Corporation, has been a global leader in the development and installation of proprietary technologies and services for rehabilitating sewer, water and other underground piping systems without digging or disruption. More information about Insituform Technologies can be found on its Internet site at www.insituform.com. Forward-Looking Statements The Private Securities Litigation Reform Act of 1995 provides a “safe harbor” for forward-looking statements. The Company makes forward-looking statements in this news release that represent the Company’s beliefs or expectations about future events or financial performance. These forward-looking statements are based on information currently available to the Company and on management’s beliefs, assumptions, estimates or projections and are not guarantees of future events or results. When used in this document, the words “anticipate,” “estimate,” “believe,” “plan,” “intend,” “may,” “will” and similar expressions are intended to identify forward-looking statements, but are not the exclusive means of identifying such statements. Such statements are subject to known and unknown risks, uncertainties and assumptions, including those referred to in the “Risk Factors” section of the Company’s Annual Report on Form 10-K for the year ended December 31, 2012, as filed with the Securities and Exchange Commission on February 27, 2013, and in the Company’s subsequent quarterly reports on Form 10-Q. In light of these risks, uncertainties and assumptions, the forward-looking events may not occur. In addition, the Company’s actual results may vary materially from those anticipated, estimated, suggested or projected. Except as required by law, the Company does not assume a duty to update forward-looking statement, whether as a result of new information, future events or otherwise. Investors should, however, review additional disclosures made by the Company from time to time in its periodic filings with the Securities and Exchange Commission. Please use caution and do not place reliance on forward-looking statements. All forward-looking statements made by the Company in this news release are qualified by these cautionary statements.