Yacimientos De Oro El Salvador

February 2009

Forward-Looking Information
This presentation contains forward-looking statements within the meaning of Section 21E of the Securities and Exchange Act of 1934, concerning the Company’s plans for its properties, operations and other matters. These statements are based on the Company’s exploration plans, forecasts of future results, estimates of mineral resources and reserves (tothe extent that they involve estimates of the mineralization that is expected should the property be developed) and anticipated timelines. Any statements that express or involve predictions, expectations, beliefs, plans, projections, objectives, assumptions or future events or performance are not statements of historical fact and may be forward-looking statements. Forward-looking statements madeby the Company are based on it’s beliefs, opinions and estimates, and current information available to the Company. However, forward-looking statements are subject to a variety of risks and uncertainties, which could cause actual events or results to differ from those anticipated in the forward-looking statement. Investors are cautioned against attributing undue certainty to forward-lookingstatements.

Terminology
References may be made to mineral “resources” and “reserves” in this presentation in addition to qualifiers such as “inferred”, “indicated” or “measured” resources and/or “proven” or “probable” reserves. These terms are recognized and required to be reported by Canadian regulatory authorities, however, they are not recognized by the U.S. Securities and Exchange Commission(“SEC”). As such, information contained in this presentation concerning descriptions of mineralization, resources and/or reserves under Canadian standards may not be comparable to similar information made public by U.S. companies subject to the reporting and disclosure requirements of the U.S. SEC. Furthermore, “inferred” resources have a great amount of uncertainty as to their existence as well astheir economic and legal feasibility. It cannot be assumed that all or any part of a mineral “resource” will ever be upgraded to a higher category or converted to “reserves”.

Key Facts
Pacific Rim Mining Corp: is an advanced-stage exploration company with a >1.4 million ounce low-cost gold deposit has cornered key sections of the nascent Central American Gold Belt and discovered 3 bonanza-gradeepithermal districts is focused on gold in the Americas is committed to sustainability, social responsibility and environmental stewardship benefits from highly-experienced management and a blue-ribbon board of directors

Project Overview
CE NTR

Zamora Project

AL AM ER

Santa Rita Project

ICA NG OL DB ELT
El Dorado Project

El Dorado Project
Pacific Rim’s flagshipadvanced-stage project Current M&I resource of 1.4 million ounces gold equivalent plus 0.3 million ounces inferred* Significant exploration potential Excellent rate of discovery through exploration drilling Company is currently seeking environmental and mining permits
* NI 43-101 report supporting this disclosure was filed on SEDAR (www.sedar.com) in Feb. 2008.
N

Coyotera Nueva Esperanza
20 km

MinitaMinita South Minita
Vein Deposit Proposed El Dorado Infrastructure Area

10 km

El Dorado Project - Resources
2005 pre-feasibility study indicated cash costs at Minita deposit in lowest quartile Full feasibility study nearing completion − cash costs expected to remain in lowest quartile
4.5 km

N

Nueva Esperanza

y Hw

Minita
January 2008 El Dorado Resource Estimate
Deposit andCategory Tonnage (tonnes) Grade (Au Eq.) Ounces (Au Eq.)

Minita - Measured & Indicated 1.8 million 11.5 g/t 660,000 South Minita - Indicated 1.0 million 10.2 g/t 350,000 Balsamo – Indicated 566,000 11.47 g/t 210,000 Nueva Esperanza - Indicated 183,000 6.3 g/t 36,000 Coyotera - Measured & Indicated 667,000 8.2 g/t 175,000 TOTAL 1,431,000

Mine Buildings

South Minita
Tailing Pond
3 km...