Startech Sells Three Plasma Converters in Puerto Rico to EnviroSafe

Date: May 24, 2007

Source: Startech Environmental Corporation

Startech Environmental Corporation (OTC Bulletin Board: STHK), a fully reporting company, announced today that it has signed the contract and received a 10% cash down-payment from EnviroSafe Industrial Services Corporation of San Juan, Puerto Rico for its purchase of three Plasma Converter Systems.

The combined capacity of approximately 50,000 pounds per day for the new EnviroSafe Recycling Facility in Puerto Rico is scheduled for start-up in 2008.

The EnviroSafe contract was coordinated by the PlasmaTech Caribbean Corporation, Startech's exclusive distributor for Puerto Rico, the Territories and the Island Nations of the Caribbean.

Contact: plasmatech@era-pr.com

About Startech -- The Environment and Energy Company

Startech Environmental is an environment and energy industry company engaged in the production and sale of its innovative, proprietary plasma processing equipment known as the Plasma Converter System(TM).

The Plasma Converter System safely and economically destroys wastes, no matter how hazardous or lethal, and turns most into useful and valuable products. In doing so, the System protects the environment and helps to improve the public health and safety. The System achieves closed-loop elemental recycling to safely and irreversibly destroy Municipal Solid Waste, organics and inorganics, solids, liquids and gases, hazardous and non- hazardous waste, industrial by-products and also items such as "e-waste," medical waste, chemical industry waste and other specialty wastes, while converting many of them into useful commodity products that can include metals and a synthesis-gas called Plasma Converted Gas (PCG)(TM).

Among the many commercial uses for PCG, is its use to produce "green electrical power," Gas-To-Liquid (GTL) fuels such as ethanol, synthetic diesel fuel and other higher alcohol "alternative" fuels. Hydrogen, for use and sale, can also be separated and recovered from the PCG synthesis gas mixture.

The Startech Plasma Converter is essentially a manufacturing system producing commodity products from feedstocks that were previously regarded as wastes.

Startech regards all wastes, hazardous and non-hazardous, as valuable renewable resources.

For further information, please visit www.startech.net

Safe Harbor for Forward-Looking Statements

This press release contains forward-looking statements, including statements regarding the Company's plans and expectations regarding the development and commercialization of its Plasma Converter(TM) technology. All forward-looking statements are subject to risk and uncertainties that could cause actual results to differ materially from those projected. Factors that could cause such a difference include, without limitation, failure of the customer to obtain appropriate financing for the project, general risks associated with product development, manufacturing, rapid technological change and competition as well as other risks set forth in the Company's filings with the Securities and Exchange Commission. The forward-looking statements contained herein speak only as of the date of this press release. The Company expressly disclaims any obligation or undertaking to release publicly any updates or revisions to any such statement to reflect any change in the Company's expectations or any change in events, conditions or circumstances on which any such statement is based. SOURCE Startech Environmental Corporation CONTACT: Steve Landa of Startech Environmental Corporation,

1-888-807-9443, +1-203-762-2499, EXT 7,

sales@startech.net Company News On-Call: www.prnewswire.com/comp/113537.html.
Web site: www.startech.net.

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