NEW YORK, Oct. 27, 2011 /PRNewswire/ -- OTC Markets Group Inc. (OTCQX: OTCM), the financial information and technology services company that provides the world's largest electronic marketplace for broker-dealers to trade unlisted stocks, today announced that Matamec Explorations Inc. (OTCQX: MHREF; TSX.V: MAT), a company focused on rare earths elements deposits, as well as gold, base, rare and platinum group metals deposits, is now trading on the highest tier of the OTC market, OTCQX®.

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"Investors prefer the quality-controlled admission process on OTCQX which identifies the segment of OTC companies focused on valuation and transparency," said R. Cromwell Coulson, President and Chief Executive Officer of OTC Markets Group. "We are pleased to welcome Matamec Explorations to OTCQX."

Matamec Explorations began trading today on the OTC market's prestigious tier, OTCQX International. Investors can find current financial disclosure and Real-Time Level 2 quotes for the Company on www.otcqx.com and www.otcmarkets.com.

Berenbaum Weinshienk PC will serve as Matamec's Principal American Liaison ("PAL") on OTCQX, responsible for providing guidance on OTCQX requirements.

About Matamec Explorations Inc.

Matamec Explorations Inc.(OTCQX: MHREF; TSX.V: MAT) trades in the United States on OTCQX under the symbol "MHREF". Matamec's exploration strategy is to discover rare metals and gold, base and platinum group metals. Its primary focus is on the development of the Kipawa Heavy Rare Earths Deposit and exploration for other rare earths-yttrium-zirconium-niobium-tantalum showings on its Zeus property.

About OTC Markets Group Inc.

OTC Markets Group Inc. (OTCQX: OTCM) operates the world's largest electronic marketplace for broker-dealers to trade unlisted stocks. Our OTC Link™ platform supports an open network of competing broker-dealers that provide investors with the best prices in over 10,000 OTC securities. We categorize the wide spectrum of OTC-traded companies into three tiers - OTCQX (the quality-controlled marketplace for investor friendly companies), OTCQB® (the U.S. reporting company marketplace for development stage companies), and OTC Pink™ (the speculative trading marketplace) - so investors can identify the level and quality of information companies provide. To learn more about how OTC Markets Group makes the unlisted markets more transparent, informed, and efficient, visit www.otcmarkets.com.