Gundle/SLT Will Release 4Q 2006 Results on Mar. 1 and Host Conference Call

Date: February 27, 2007

Source: Gundle/SLT Environmental, Inc.

Gundle/SLT Environmental, Inc. Announces Fourth Quarter and Year End 2006 Conference Call

Gundle/SLT Environmental, Inc. (GSE), will release its fourth quarter and year end 2006 financial and operating results on Thursday, March 1, 2007. The Company will host a conference call Friday, March 2, 2007 at 10:00 a.m. (ET). This call will discuss results of operations for the fourth quarter and year ending 2006 and answer questions from participants.

Note holders may join the conference call by dialing 1.800.946.0719 or, if calling from outside the United States 719.457.2645, and enter conference ID#8288794. The conference call will also be broadcast live over the Internet. To access the webcast, go to the GSE web site at www.gseworld.com and select "Events and Webcasts" in the "Investor Relations" section. Please log on to the web site at least 15 minutes prior to the start of the call to register and to download and install any necessary audio software.

If you are unable to participate in the live call, the webcast of the conference call will be available at the web site listed above following the event and will be available until the next conference call.

About Gundle/SLT Environmental, Inc.

Gundle/SLT Environmental, Inc. headquartered in Houston, is a 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 and wastewater treatment, and aquaculture. Additional information is available at www.gseworld.com.

For more information, contact:
Samir T. Badawi
(281) 230-6710
www.gseworld.com.

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