http://finance.yahoo.com/news/Great-Panther-Updates-Mineral-iw-4276741108.html?x=0&.v=1

VANCOUVER, BRITISH COLUMBIA--(Marketwire - 12/15/10) - GREAT PANTHER SILVER LIMITED (TSX:GPR - News) is pleased to report that Scott Wilson Roscoe Postle Associates ("Scott Wilson RPA"), of Vancouver, B.C., has completed a NI 43-101 compliant mineral resource/reserve estimate on the Cata Clavo, Los Pozos, and Santa Margarita zones at the Company's wholly-owned Guanajuato Mine in Guanajuato, Mexico. The new Measured and Indicated mineral resource contains 5,450,000 ounces silver equivalent. Inferred mineral resources are estimated at 2,678,000 ounces silver equivalent ("Ag eq oz"). The Measured and Indicated mineral resources include 4,372,000 Ag eq oz categorized as Proven and Probable mineral reserves, using a cut-off grade of 185 g/t silver equivalent. This is the first time that NI 43-101 compliant reserves have been estimated for the Guanajuato Mine and is a positive step in confirming the long-term viability of this historic operation.

The new resource base represents a 53% increase over the previous resource estimate (for just the Cata Clavo; see news release June 30, 2009), even after deducting the production from that zone over the last year and a half. This demonstrates the Company's ability to not only replace what is being mined, but to increase the resource base and extend the mine life with additional drilling. There were no compliant resources at Guanajuato when Great Panther purchased the property in 2005 and most of the more than 4,500,000 Ag eq oz that the Company has mined from Guanajuato since 2006 has come from non-compliant resources.