May 25, 2010 (FinancialWire) — Extorre Gold Mines Ltd. (OTC: EXGMF) recently began trading on the Pinksheets OTC Electronic OTC Markets’ OTCQX Tier. EXGMF stock last closed unchanged at $2.51 per share. The most recent EXGMF company press release was a “Home Country News Release” (accessible via http://www.otcmarkets.com/pink/quote/quote.jsp?symbol=EXGMF).

Extorre is a Canadian mineral exploration company which holds the Cerro Moro and Don Sixto properties located in Argentina and is currently focused on the development of the Cerro Moro Project gold project.

The OTCQX provides the highest level of visibility and access to U.S. investors possible in the OTC Market. OTCQX is the premium tier of the U.S. over-the-counter marketplace which gives non-U.S. companies a visible U.S. cross-listing without the duplicative regulatory costs required of listing on a traditional U.S. exchange. OTCQX companies use the quality controlled OTCQX listing platform to offer investors transparent trading, superior information, and easy access through their U.S. regulated broker-dealers. The innovative OTCQX platform offers companies and their shareholder a level of marketplace services formerly available only on a U.S. exchange.

Source: Pinksheets OTC Electronic OTC Markets, OTCQX Tier (http://www.pinksheets.com/pink/marketactivity/rt_trade_stats.jsp?tabValue=1).

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