Company Web Site: www.pacrim-mining.com

(NI) 43-101 reports from projects located in: El Salvador (SV)

This report is based on NI 43-101 disclosures and fully diluted share counts available on: 2008-03-08. Metrics have been updated with stock price and metal prices in effect at the close of Canadian markets on 2010-03-11.

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2 Jul 2009, Public opposition brings ban on gold mining in El Salvador

GoldMinerPulse Most Optimistic Resource Estimate Summary (MORE):
Metrics last with prices in effect at the TSX/TSXV close on 2010-03-11

Project/Deposit	CC	MVpSh	PP%	MI%	I%	Gold	Silver
El Dorado	SV	$16.90	0	82%	18%	1.81 M oz	13.66 M oz
GoldMinerPulse Metrics - Total All Projects/Deposits by Metal, prices from 2010-Mar-11
Metric / Metal						Gold	Silver
Metal Totals						1.81 M oz	13.66 M oz
Metal Prices in US$ (from 2010-03-11)						$1,108.90 per oz	$17.15 per oz
Metal Value per Share (MVpSh) (Shown in US$ and based on fully diluted share count shown below)						$15.14	$1.76
Percentage of Total Metal Value						89.57%	10.43%
PP% | MI% | I%						0 | 82% | 18%	0 | 82% | 18%
GoldMinerPulse Metrics - All Metals from All Projects/Deposits and Prices from 2010-Mar-11
Metal Value per Share (MVpSh)						US$16.90
Average Ore Value per Tonne						US$
Metal Value Leverage (MVL)						96.16
Market Capitalization as % of Metal Value						1.0%
Recent Stock Price						C$0.18   (TSX/TSXV close on 2010-03-11.)   Conversion rate used: 1 Cnd$ = 0.976275 US$ )
Fully Diluted Share Count						132.89 M    ( Estimated fully dilutes shares based on Quick Facts web page figures for Shares Outstanding + Stock Options + Warrants data viewd July 2009. )
PP% | MI% | I%						0 | 82% | 18%
Gold Metrics-- all Projects/Deposits
Average Gold Ore Grade						g/t
Market Capitalization     per oz of Gold In Ground						$12.87   US$  |   13.19   C$
Gold Eq Oz Estimate						2.03 M oz   ( 1.81 M oz are in ground)
Market Capitalization     per oz of Gold Equilavent						$11.53   US$  |   11.81   C$
Silver Metrics-- all Projects/Deposits
Average Silver Ore Grade						g/t
Market Capitalization     per oz of Silver In Ground						$1.71   US$  |   1.75   C$
Silver Eq Oz Estimate						130.95 M oz   ( 13.66 M oz are in ground)
Market Capitalization     per oz of Silver Equilavent						$0.18   US$  |   0.18   C$
See terms for more about GoldMinerPulse metrics.

Additional Notes:

April 30, 2009 Pacific Rim Subsidiary Commences CAFTA Arbitration Proceedings Against the Government of El Salvador

Basis of Claim
Since 2002 PRES and then later DOREX have been exploring, discovering and delineating gold deposits in El Salvador. As a result of these efforts and at the initial invitation and encouragement of the Government, the Company and the Enterprises have developed precious metal assets and acquired rights much higher in value than their investment of over US$ 77 million that has been made in El Salvador. The Company and the Enterprises have operated in full compliance with Salvadoran law, including the country's environmental, mining and foreign investment laws, and have met or exceeded all applicable standards while conducting business in El Salvador. Ample evidence, however, demonstrates that the Government has failed to fulfill its obligations.

The Company's claims under CAFTA are based on the Government's breaches of international and Salvadoran law arising out of the Government's improper failure to finalize the permitting process as it is required to do and to respect the Company's and the Enterprises' legal rights to develop mining activities in El Salvador. This conduct by the Government of El Salvador has resulted in a significant loss to the Company and the local communities, and has unnecessarily delayed normal development of these valuable deposits.  

GoldMinerPulse Coverage Status:

• GoldMinerPulse coverage of Pacific Rim Mining Corp. is complete pending a final internal review.

(NI) 43-101 Report:

Title: El Dorado
Date: 2008-03-08 (250 pages)

Project Location: Cabanas, El Salvador

Map View: View project on a Google Map.

Most Optimistic Resource Estimates (MORE):

Metal	MVpSh	Contained Metal Quantity	Ore Grade	Ore Quantity
Gold	$12.46	1.49 M oz	5.960 g/t	7.79 M t
Silver	$1.45	11.24 M oz	44.840 g/t	7.79 M t
Estimate notes: See Table 1.1 El Dorado Total Project Resources on p. 18 of 250 in the NI 43-101 dated March 2008. 1 g AuEq/t cutoff

Metal	MVpSh	Contained Metal Quantity	Ore Grade	Ore Quantity
Gold	$2.67	320.43 K oz	5.100 g/t	1.95 M t
Silver	$0.31	2.42 M oz	38.520 g/t	1.95 M t
Estimate notes: See Measured + Indicated notes above.