Pan American Silver Announces Release Date for 2011 Unaudited First Quarter Results

Vancouver, British Columbia – April 27, 2011 -- Pan American Silver Corp. (PAAS: NASDAQ; PAA: TSX) today announced that its unaudited 2011 first quarter results will be released on Wednesday, May 18, 2011 after market closes. A conference call and live audio webcast to discuss the results will be held on Thursday, May 19 at 11:00 am ET (8:00 am PT).

Q1 2011 Results Conference Call and Webcast Information

Date: Thursday, May 19, 2011 Time: 11:00 am Eastern Time – 8:00 am Pacific Time

Conference Call Dial-In Numbers

North America toll number: 1-800-319-4610 Outside Canada & USA call: 1-604-638-5340

Audio Webcast

A live audio webcast can be accessed at:

https://services.choruscall.com/links/pan110519.html

Conference Call Replay Numbers

Dial: 1-604-638-9010 Code (followed by the # sign): 6218

Playback available for one week following the call

About Pan American Silver

Pan American Silver’s mission is to be the world’s largest and lowest cost primary silver mining company by increasing its low cost silver production and silver reserves. The Company currently has seven silver mining operations in Mexico, Peru, Argentina and Bolivia. Pan American is also the operator of the La Preciosa joint-venture in México and the owner of the Navidad silver project in Argentina.

Information Contact

Kettina Cordero Coordinator, Investor Relations (604) 684-1175 [email protected] www.panamericansilver.com

1500 - 625 Howe Street, Vancouver, BC, Canada V6C 2T6 Tel 604-684-1175 Fax 604-684-0147