Pacific Rim Mining Corp.: CAFTA Proceedings Begin as Tribunal Constituted

VANCOUVER, BRITISH COLUMBIA--(Marketwire - Nov. 19, 2009) - Pac Rim Cayman, LLC ("Pac Rim" or the "Company"), a Nevada corporation and a wholly-owned subsidiary of Pacific Rim Mining Corp. (TSX:PMU)(NYSE Amex:PMU) ("Pacific Rim") has received notice from the International Centre for Settlement of Investment Disputes ("ICSID") that the three nominations for arbitrators in the Company's action under the Central America-Dominican Republic-United States of America Free Trade Agreement ("CAFTA") and the El Salvadoran Investment Law have all accepted their appointments. As a result, the Arbitral Tribunal is therefore deemed under ICSID Arbitration Rule 6 to have been constituted. For additional information about Pac Rim's claims against the Government of El Salvador see Pacific Rim news release #-09-03 dated April 30, 2009 or its 2009 Annual Report.

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