Pan American Silver Announces Release Date for 2010 Unaudited First Quarter Results

Vancouver, British Columbia – April 20, 2010 -- Pan American Silver Corp. (PAAS: NASDAQ; PAA: TSX) today announced that its unaudited 2010 first quarter results will be released on Monday, May 10, 2010 after market closes. A conference call and live audio webcast to discuss the results will be held on Tuesday, May 11 at 8:00 am Pacific Time (11:00 am Eastern Time).

Q1 2010 Results Conference Call and Webcast Information

Date: Tuesday, May 11, 2010 Time: 8:00 am Pacific Time; 11:00 Eastern Time

Conference Call Dial-In Numbers

North America and International access number: 1-604-638-5340

Audio Webcast

A live audio webcast can be accessed at:

https://services.choruscall.com/links/pan100511.html

Conference Call Replay Numbers

North America and International access number: 1-604-638-9010 Code (followed by the # sign): 6218

Playback available for seven days 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 eight silver mining operations in Mexico, Peru, Argentina and Bolivia. The Company is also advancing the La Preciosa joint-venture silver project in Mexico and the 100% owned 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