Pacific Rim Mining Corp. is a gold exploration company with projects in El Salvador and Nevada, USA.

The Company focuses its exploration efforts on epithermal gold deposits in the Americas because of their typically high gold and silver grades, low environmental risk and propensity to occur in veins that can be mined underground.

Environmental stewardship and social responsibility are core values of the Company.

Pacific Rim Mining Corp has offices in Reno, Nevada, Vancouver, Canada, and Sensuntepeque, El Salvador.

The Company's shares trade on the Toronto Stock Exchange (TSX) under the symbol PMU and on the OTCQX under the symbol PFRMF.

The El Dorado gold project in El Salvador is Pacific Rim's most advanced exploration asset and has received the bulk of the Company's exploration efforts over the past 10 years.

The Company recently acquired a joint venture option on the Hog Ranch epithermal gold project in Nevada and is actively pursuing additional exploration opportunities elsewhere in the Americas

The El Dorado project comprises a 144 square kilometre area covered by three exploration licences with nominal expiry dates of September 28, 2013 (one licence) and September 29, 2013 (two licences) and a 12.75 square kilometre area pending conversion to an exploitation concession, which underlying exploration licence has a nominal expiry date of January 1, 2005.

In accordance with Salvadoran Law, PRES presented a request for the conversion of this 12.75 square kilometre portion of the El Dorado exploration licences to an exploitation concession in December 2004

The conversion process is currently pending ministerial acceptance of PRES's Environmental Impact Study and issuance of the environmental permits. Salvadoran administrative laws and procedures give PRES exclusive rights to the exploitation concession area while the permitting process is underway.

El Dorado is subject to a royalty of 3% of net smelter returns in favour of a previous property owner. Pacific Rim has the right to buy back the royalty for $1 million for the first 1.5% and $3 million for the second 1.5%, provided that at least one half of the royalty is acquired within six months of the commencement of commercial production

Pacific Rim's other exploration projects include the Hog Ranch project in Nevada, and the Santa Rita and Zamora-Cerro Colorado gold projects in El Salvador.

Pacific Rim maintains a generative program focusing on gold projects in the Americas that meet the Company's exploration focus and have the potential to enhance the Company's growth profile.