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Trevali reports Santander Mine Q1-2015 production

April 14, 2015
Q1 payable production of 12.5 million lbs zinc, 7.4 million lbs lead and 254,800 ounces silver

Vancouver, British Columbia...Trevali Mining Corporation ("Trevali" or the "Company") (TSX: TV; BVL: TV; OTCQX: TREVF; Frankfurt: 4TI) reports preliminary production results for its first quarter ("Q1") ending March 31, 2015 of approximately 12.5 million payable pounds of zinc, 7.4 million payable pounds of lead and 254,800 payable ounces of silver from the Santander Mine in Peru (see Table 1).

Q1-2015 recoveries averaged 90% for zinc, 90% for lead and 80% for silver. Mill throughput for the quarter was 185,365 tonnes. Average Q1 head grades were 4.03% Zn, 2.13% Pb and 1.65 oz/ton Ag with production of 13,430 tonnes of zinc concentrate averaging 50% Zn and 5,925 tonnes of lead-silver concentrate averaging 60% Pb and 41.0 oz/ton Ag for the year.

"We remain very encouraged with our first quarter production at Santander, especially with continued improvements in mill performance where we once again achieved above design through-put and recoveries of all metals, and remain on-track with our 2015 production guidance," stated Dr. Mark Cruise, Trevali's President and CEO. "Site optimization and efficiency initiatives are delivering operational improvements as the Company stands well positioned to benefit from anticipated zinc price strengthening later this year with major global mine closures scheduled to occur and supply constraints forecast."

Table 1: Santander Mine Q1-2015 production statistics

Tonnes Mined182,258
Tonnes Milled185,365
Average Head Grades
Silver (ounces/ton)1.65
Average Recoveries (%)
Concentrate Produced DMT (dry metric tonnes):
Concentrate Grades
Ag (ounces/ton)41.04
Payable Production:
Zinc (pounds)12,536,783
Lead (pounds)7,407,887
Silver (ounces)254,805


2015 Santander Mine Production Guidance

Santander Mine 2015 production guidance estimates remain unchanged at approximately:

  • 48 million to 50 million pounds of payable zinc (in concentrate grading approximately 50 per cent Zn) at an average head grade of 4.2 to 4.4 per cent Zn
  • 23 million to 25 million pounds of payable lead (in concentrate grading approximately 55 to 57 per cent Pb) at an average head grade of 1.8 to 2.1 per cent Pb
  • 850,000 to 950,000 ounces of payable silver at an average head grade of 1.5 to 1.8 ounces per ton Ag

Cash costs for 2015 are estimated at $48 (U.S.) to $51 (U.S.) per tonne milled.
(Please see Cautionary Note on Forward Looking Statements at the end of this document)

Q1-2015 Financial Results and Conference Call

Trevali will release financial results for its first quarter period ending March 31, 2015 on May 14, 2015 after the close of the trading day in Toronto. The Company will host a conference call and audio webcast at 10:30 a.m. Eastern Time on Friday, May 15, 2015 to review the financial results. Conference call dial-in details and audio webcast link will be provided in the financial results news release.

Caribou Mine Update

The Company's restart of its Caribou Mine and Mill Complex in the Bathurst Mining Camp of Northern New Brunswick continues to advance and remains on-track and schedule for commissioning over the upcoming weeks.

Qualified Person and Quality Control/Quality Assurance

EurGeol Dr. Mark D. Cruise, Trevali's President and CEO, Paul Keller, P.Eng, Trevali's Chief Operating Officer are qualified persons as defined by NI 43-101, have supervised the preparation of the scientific and technical information that forms the basis for this news release. Dr. Cruise is not independent of the Company as he is an officer, director and shareholder. Mr. Keller is not independent of the Company as he is an officer and shareholder.


Trevali is a zinc-focused, base metals mining company with one producing operation currently in Peru and an advanced-stage mine under development in Canada.

In Peru, the Company is actively producing zinc and lead-silver concentrates from its Santander mine and 2,000-tonne-per-day metallurgical plant.

In Canada, Trevali owns the Caribou mine and mill, Halfmile mine and Stratmat deposit all located in the Bathurst Mining Camp of northern New Brunswick. The Company is currently advancing its 3,000-tonne-per-day Caribou Mill Complex and mine towards scheduled Q2-2015 production.

All of the Company's deposits remain open for expansion.

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

On Behalf of the Board of Directors of

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

Contact Information:
Steve Stakiw
Vice President, Investor Relations and Corporate Communications

Phone: (604) 488-1661 / Direct: (604) 638-5623

This news release contains "forward-looking statements" within the meaning of the United States private securities litigation reform act of 1995 and "forward-looking information" within the meaning of applicable Canadian securities legislation. Statements containing forward-looking information express, as at the date of this news release, the Company's plans, estimates, forecasts, projections, expectations, or beliefs as to future events or results and the company does not intend, and does not assume any obligation to, update such statements containing the forward-looking information. Such forward-looking statements and information include, but are not limited to statements as to: the accuracy of estimated mineral reserves and resources, anticipated results of future exploration, and forecast future metal prices, anticipated results of future electrical sales and expectations that environmental, permitting, legal, title, taxation, socio-economic, political, marketing or other issues will not materially affect estimates of mineral reserves. These statements reflect the Company's current views with respect to future events and are necessarily based upon a number of assumptions and estimates that, while considered reasonable by the Company, are inherently subject to significant business, economic, competitive, political and social uncertainties and contingencies.

These statements reflect the Company's current views with respect to future events and are necessarily based upon a number of assumptions and estimates that, while considered reasonable by the company, are inherently subject to significant business, economic, competitive, political and social uncertainties and contingencies. Many factors, both known and unknown, could cause actual results, performance or achievements to be materially different from the results, performance or achievements that are or may be expressed or implied by such forward-looking statements contained in this news release and the company has made assumptions and estimates based on or related to many of these factors. Such factors include, without limitation: fluctuations in spot and forward markets for silver, zinc, base metals and certain other commodities (such as natural gas, fuel oil and electricity); fluctuations in currency markets (such as the Peruvian sol versus the U.S. dollar); risks related to the technological and operational nature of the Company's business; changes in national and local government, legislation, taxation, controls or regulations and political or economic developments in Canada, the United States, Peru or other countries where the Company may carry on business in the future; risks and hazards associated with the business of mineral exploration, development and mining (including environmental hazards, industrial accidents, unusual or unexpected geological or structural formations, pressures, cave-ins and flooding); risks relating to the credit worthiness or financial condition of suppliers, refiners and other parties with whom the Company does business; inadequate insurance, or inability to obtain insurance, to cover these risks and hazards; employee relations; relationships with and claims by local communities and indigenous populations; availability and increasing costs associated with mining inputs and labour; the speculative nature of mineral exploration and development, including the risks of obtaining necessary licenses and permits and the presence of laws and regulations that may impose restrictions on mining,; diminishing quantities or grades of mineral reserves as properties are mined; global financial conditions; business opportunities that may be presented to, or pursued by, the Company; the Company's ability to complete and successfully integrate acquisitions and to mitigate other business combination risks; challenges to, or difficulty in maintaining, the Company's title to properties and continued ownership thereof; the actual results of current exploration activities, conclusions of economic evaluations, and changes in project parameters to deal with unanticipated economic or other factors; increased competition in the mining industry for properties, equipment, qualified personnel, and their costs. Investors are cautioned against attributing undue certainty or reliance on forward-looking statements. Although the Company has attempted to identify important factors that could cause actual results to differ materially, there may be other factors that cause results not to be as anticipated, estimated, described or intended. The Company does not intend, and does not assume any obligation, to update these forward-looking statements or information to reflect changes in assumptions or changes in circumstances or any other events affecting such statements or information, other than as required by applicable law.

Trevali's production plans at Caribou-Halfmile-Stratmat and Santander are based only on Indicated and Inferred Mineral Resources and not Mineral Reserves and do not have demonstrated economic viability. Inferred Mineral Resources are considered too speculative geologically to have the economic considerations applied to them that would enable them to be categorized as Mineral Reserves, and there is therefore no certainty that the conclusions of the production plans and Preliminary Economic Assessment (PEA) will be realized. Additionally where Trevali discusses exploration/expansion potential, any potential quantity and grade is conceptual in nature and there has been insufficient exploration to define a mineral resource and it is uncertain if further exploration will result in the target being delineated as a mineral resource.

We advise US investors that while the terms "measured resources", "indicated resources" and "inferred resources" are recognized and required by Canadian regulations, the US Securities and Exchange Commission does not recognize these terms. US investors are cautioned not to assume that any part or all of the material in these categories will ever be converted into reserves.

This news release does not constitute an offer to sell or a solicitation of an offer to buy any of the securities in the United States. The securities described herein have not been and will not be registered under the United States Securities Act of 1933, as amended, or the securities laws of any state and may not be offered or sold within the United States, absent such registration or an applicable exemption from such registration requirements.

The TSX has not approved or disapproved of the contents of this news release.



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