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Re:   News Releases - Tuesday, November 12, 2013
      ISS And Glass Lewis Recommend Pacific Rim Mining Shareholders
      Vote In Favour Of Plan Of Arrangement With Oceanagold
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Pacific Rim Mining Corp. ("Pacific Rim") announces that Institutional
Shareholder Services ("ISS") and Glass Lewis & Co. ("Glass Lewis") have
both recommended that shareholders vote FOR the special resolution to
approve the plan of arrangement (the "Arrangement") between Pacific Rim
and OceanaGold Corporation ("OceanaGold"). The resolution will be
considered at the upcoming special meeting of shareholders of Pacific
Rim to be held at the offices of DuMoulin Black LLP, 10th Floor, 595
Howe Street, Vancouver, British Columbia, on Thursday, November 21,
2013 at 3:00 p.m. (Pacific time).

Both ISS and Glass Lewis are independent proxy advisory firms who,
among other services, provide proxy voting recommendations to pension
funds, investment managers, mutual funds and other institutional
shareholders. In its analysis, ISS said* that:

"The acquisition appears to make strategic sense as the acquirer is a
much larger and well established player in the same sector and is
expected to diversify Pacific Rim's asset risk profile and provide
exposure to OceanaGold's diversified portfolio of producing gold mines
in New Zealand and the Philippines. Overall, in light of the
significant implied premium, the favorable market reaction, and the
reasonable strategic rationale, a vote FOR this resolution is
warranted."


The board of directors of Pacific Rim recommends that shareholders vote
FOR the Arrangement Resolution.

Your vote is important regardless of the number of shares you own.
Pacific Rim encourages its shareholders to read the meeting materials
in detail. A copy of the information circular is available on Pacific
Rim's website at
http://www.pacrim-mining.com/s/SM_Documents-2014.asp or on SEDAR at
www.sedar.com.

YOUR VOTE IS IMPORTANT. PLEASE VOTE TODAY.

How to Vote

A proxy form or voting instruction form accompanies the meeting
materials you were sent on October 24, 2013. Instructions on how to
vote, which vary depending on whether you are a registered or
beneficial shareholder, are provided in the information circular
included in the meeting materials. Most Pacific Rim shareholders are
beneficial shareholders.

Registered shareholders who hold Pacific Rim shares in their name and
represented by a physical certificate may vote in person at the
Meeting, by mail or by using one of the following methods:
Beneficial shareholders who hold Pacific Rim shares through a bank,
broker or other intermediary will have different voting instructions
and should carefully follow the voting instructions provided to them on
the voting information form included in the meeting materials. In
addition, Pacific Rim may utilize the Broadridge QuickVoteTM  service
to assist beneficial shareholders in voting their shares. Eligible
beneficial shareholders may be contacted by Pacific Rim's proxy
solicitation agent, Laurel Hill Advisory Group, to conveniently obtain
a vote directly over the telephone.

Shareholder Questions

Shareholders, whether registered or beneficial, who have questions
regarding the voting process or have not received their proxy or voting
instruction form may contact the proxy solicitation agent at:

Laurel Hill Advisory Group
Toll free:  1-877-452-7184
1-416-304-0211 (banks, brokers or collect calls from outside Canada and
the US)
Email:  assistance@laurelhill.com

About Pacific Rim Mining Corp.

Pacific Rim is a mineral exploration company focused on high-grade,
environmentally clean gold deposits in the Americas and committed to
excellence in environmental stewardship and social responsibility.
Pacific Rim's primary asset is the advanced-stage, vein-hosted El
Dorado gold deposit in El Salvador, where Pacific Rim also owns several
grassroots gold projects. Pacific Rim's common shares trade under the
symbol PMU on the TSX and on the OTCQX market in the US under the
symbol PFRMF.

On behalf of the board of directors,

"Thomas C. Shrake"
Thomas C. Shrake
President and CEO

For further information, contact Pacific Rim at 604-689-1976 or
1-888-775-7097 or general@pacrim-mining.com or visit
www.pacrim-mining.com.

*Permission to quote from the ISS report was neither sought nor
obtained.

The TSX has not reviewed nor accepts responsibility for the adequacy or
accuracy of this release.

Associated File:
  http://www.pacrim-mining.com/i/pdf/13-10-ISS-NR.pdf
    115 KB in size, approx. 22 seconds to download at 56.6Kbps

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Copyright (c) 2013 PACIFIC RIM MINING CORP. (PMU)  All rights reserved.
 For more information visit our website at
http://www.pacrim-mining.com/ or send mailto:general@pacrim-mining.com
Message sent on Tue Nov 12, 2013 at 11:44:08 AM Pacific Time
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