Calvista Commences Trading on the U.S. OTCQX

TORONTO, ONTARIO--(Marketwire - June 13, 2012) - Calvista Gold Corporation (TSX:CVZ)(OTCQX:CAGOF) ("Calvista" or the "Company") is pleased to announce that the Company's shares have begun to trade on the OTCQX International stock exchange in New York.

The OTCQX is the highest tier of the U.S. OTC Markets, and provides the world's largest electronic inter-dealer quotation system, trading technology and financial information provider for over-the-counter (OTC) securities in the United States.

The Company's Chief Executive Officer, Mr. Mark Haywood, stated that: "the Company is pleased to begin trading on the OTCQX and gain greater exposure to the U.S. markets."

Berns & Berns, Counsellors at Law, will serve as Calvista's Principal American Liaison ("PAL") on the OTCQX, responsible for providing guidance on OTCQX requirements. U.S. investors will be able to find the Company's current financial disclosure, news releases, and real-time level 2 quotes on www.OTCQX.com and www.otcmarkets.com.

About Calvista

Calvista is a mineral exploration company focused on the acquisition, exploration and development of properties for the mining of gold and other minerals. All our prospects in the California Valley are located below 3,200 metres and are not affected by the Paramo ecosystem law. With a head office in Toronto and Colombian headquarters in Bucaramanga, Calvista is led by a management team with over 50 years of exploration and mining experience, principally in South and Central America. For further details on Calvista, please refer to our web site (www.calvistagold.com) and Calvista's Canadian regulatory filings on SEDAR at www.sedar.com.

CAUTIONARY STATEMENT: This news release contains forward-looking information which is not comprised of historical facts. Forward-looking information involves risks, uncertainties and other factors that could cause actual events, results, performance, prospects and opportunities to differ materially from those expressed or implied by such forward-looking information. Forward looking information in this news release includes, but is not limited to, Calvista's objectives, goals or future plans, statements regarding exploration results, exploration plans and the timing of a potential resource estimate. Factors that could cause actual results to differ materially from such forward-looking information include, but are not limited to, uncertainties inherent to preparing a resource estimate within expected timeline, capital and operating costs varying significantly from estimates, the preliminary nature of metallurgical test results, delays in obtaining or failures to obtain required governmental, environmental or other project approvals, political risks, uncertainties relating to the availability and costs of financing needed in the future, changes in equity markets, inflation, changes in exchange rates, fluctuations in commodity prices, delays in the development of projects and the other risks involved in the mineral exploration and development industry, enhanced risks inherent to conducting business in a jurisdiction such as Colombia, and those risks set out in Calvista's public documents filed on SEDAR. Although Calvista believes that the assumptions and factors used in preparing the forward-looking information in this news release are reasonable, undue reliance should not be placed on such information, which only applies as of the date of this news release, and no assurance can be given that such events will occur in the disclosed time frames or at all. Calvista disclaims any intention or obligation to update or revise any forward-looking information, whether as a result of new information, future events or otherwise, other than as required by law.