Extorre Reports Major Extensions to Silver-Gold Mineralisation at Cerro Moro Project

Extorre Gold Mines Limited is pleased to report that results from 26 new drill holes on the Gabriela vein has extended silver-gold mineralization over 400 metres (1,312 feet) beyond the southeastern limit of the current National Instrument 43-101-compliant Inferred Resource.

This drilling is the first to be completed at Gabriela since 2008.

Drilling is coniron ore beneficiation process flow sheettinuing with four rigs to test extensions at Gabriela and Escondida Far West, as well as at the recent discovery reported at Martina. The primary focus of the discovery drilling is the delineation of additional high grade gold-silver shoots for inclusion (and/or reclassification) in the next Cerro Moro resource statement.

Extorre’s 100% owned Cerro Moro Project is located in Santa Cruz Province, Argentina.

The Gabriela vein is located approximately three kilometres (9,840 feet (“ft”)) north east of the high grade Escondida Central zone. Fifteen of the 26 diamond drill holes completed to date returned significant results as outlined in the table below. Results from an additional three holes are awaited.

Highlights of the current drilling include the following three of the highest grade gold-silver intercepts returned to date from Gabriela:

• MD868 intersected 2.93 metres (“m”) @ 4.1 g/t gold + 469 g/t silver (11.9 g/t gold equivalent*) and 2.19 m @ 7.2 g/t gold and 1,220 g/t silver (27.6 g/t gold equivalent*)


• MD875 intersected 2.35 m @ 6.9 g/t gold + 986 g/t silver (23.3 g/t gold equivalent*)


• MD928 intersected 2.89 m @ 7.4 g/t gold + 1,216 g/t silver (27.7 g/t gold equivalent*).

Eric Roth, Extorre´s President and CEO, stated, “Gabriela is a key vein in the Cerro Moro vein field and, in contrast to the Escondida vein, is predominantly silver-rich. Results to date indicate that approximately 70% of the precious metal content of the Gabriela vein occurs as silver, whereas in the Escondida vein, silver accounts for around 40% of the total precious metal content of the vein.

“Our current drill program at Gabriela has been successful in extending silver-gold mineralization over 400 metres to the south-east, in addition to confirming the presence of higher grade silver-gold ore shoots within, and adjacent to, the relatively lower grade, potentially open pittable, Inferred Resource at Gabriela.

“The south-eastern extension to the Gabriela vein remains open both at depth and along strike, with drill testing of this area expected to continue during the second half of 2010.

“Extorre is planning expeditious development of the Cerro Moro project, with potential development commencing early 2011. The plant has been designed in a modular form to facilitate expansion, and these new discoveries will allow the Company to increase gold and silver production going forward.”