Trevali Appoints Dr. Valentin Paniagua Jara to Board of Directors

Trevali Mining Corporation ("Trevali" or the "Company") (TSX: TV; BVL: TV; OTCQX: TREVF; Frankfurt: 4TI) announces that Dr. Valentin Paniagua Jara has been appointed to the Board of Directors of the Company.

Dr. Paniagua is a partner at the Peruvian law firm Estudio Echecopar, one of Latin America's leading law groups and head of the firm's Natural Resources Department. His primary practice areas are: mining, environmental, mergers and acquisitions, and corporate law. He advises Peruvian and international mining companies in connection with a broad range of transactions including corporate mergers and acquisitions; property and mine acquisitions; project finance; option, joint venture and royalty agreements; ore sales and marketing arrangements; and tenure and permitting issues.

Valentin received his LLB from the Law School of the Pontificia Universidad Catolica del Peru (1989) and also has studies in economics at the Universidad del Pacifico (1982).

He is former President and current member of the Legal Committee of the National Mining, Oil and Energy Society (Sociedad Nacional de Miner�a, Petr�leo y Energia) and a lecturer in mining law at the Law School of the Pontificia Universidad Catolica del Peru.

"Considered one of the leading mining law practitioners in Peru, we are extremely proud to have Valentin join Trevali's Board. The addition of his extensive Peruvian legal and mining industry experience will significantly strengthen the Board as we approach the commissioning of our Santander Mine in Peru and seek to increase the Company's Latin American presence going forward," stated Dr. Mark Cruise, Trevali's President and CEO.

ABOUT TREVALI MINING CORPORATION
Trevali is a zinc-focused base metals producer with operations in Canada and Peru -- the Halfmile and Santander mines respectively. In Canada, Trevali owns the Halfmile zinc-lead-silver mine and Stratmat polymetallic deposit, and has entered into a definitive agreement to acquire the Caribou Mine and Mill, all located in the Bathurst Mining Camp of northern New Brunswick. The Company also has the past-producing Ruttan copper-zinc mine in northern Manitoba. Initial production from the Halfmile mine commenced in early 2012 and development is ramping up to achieve a planned production rate of approximately 3,000-tonnes-per-day to feed planned operations at the Company's Caribou Mill Complex (subject to closure of its acquisition).

In Peru, the Company has the Santander zinc-lead-silver mine and the former-producing Huampar silver mine, both located in the Central Peruvian Polymetallic Belt. Mine commissioning is anticipated to commence at the Santander operation in Q4-2012 with ramp up to full 2,000-tonnes-per-day production to follow shortly thereafter. Additionally through its wholly-owned subsidiary, Trevali Renewable Energy Inc., Trevali is undertaking a significant upgrade of its wholly-owned Tingo run-of-river hydroelectric generating facility along with transmission line upgrades and extensions to allow, in addition to supplying power to the mining operation on the property, the potential sale of surplus power into the Peruvian National Energy Grid.

The common shares of Trevali are listed on the TSX (symbol TV), the OTCQX (symbol TREVF) and on the Lima Stock Exchange (symbol TV). Warrants to purchase common shares of Trevali are listed on the TSX (symbol TV.WT). For further details on Trevali, readers are referred to the Company's web site (www.trevali.com) and to Canadian regulatory filings on SEDAR at www.sedar.com.

On Behalf of the Board of Directors of
TREVALI MINING CORPORATION

"Mark D. Cruise" (signed)
Mark D. Cruise, President