U.S. Geothermal Inc.

U.S. Geothermal Inc.

April 16, 2008 09:00 ET

U.S. Geothermal Inc. Now Trading on the American Stock Exchange

BOISE, IDAHO--(Marketwire - April 16, 2008) - U.S. Geothermal Inc. ("U.S. Geothermal") (TSX:GTH)(AMEX:HTM), a renewable energy development company focused on the production of electricity from geothermal energy, announced that its common shares have been listed on the American Stock Exchange ("AMEX") effective at market opening today under the trading symbol "HTM". The AMEX specialist for U.S. Geothermal will be J. Streicher & Co., LLC.

The common shares of U.S. Geothermal had previously traded on the OTC Bulletin Board under the symbol "UGTH". In addition to the AMEX listing, U.S. Geothermal continues to trade on the Toronto Stock Exchange under the symbol "GTH" and trading will cease on the OTC.

About U.S. Geothermal:

U.S. Geothermal is a renewable energy development company that is currently operating a geothermal power plant at Raft River, Idaho and is conducting exploration activities at Neal Hot Springs, Oregon.

The information provided in this news release may contain forward-looking statements within the definition of the Safe Harbor provisions of the US Private Securities Litigation Reform Act of 1995. These statements are based on US Geothermal Inc.'s current expectations and beliefs and are subject to a number of risks and uncertainties that can cause actual results to differ materially from those described. Forward-looking statements are based on management's expectations, beliefs and opinions on the date the statements are made. U.S. Geothermal Inc. assumes no obligation to update forward-looking statements if management's expectations, beliefs, or opinions, or other factors, should change.

The TSX, TSX Venture Exchange, American Stock Exchange and OTC Bulletin Board Exchanges do not accept responsibility for the adequacy of this release.

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