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Trevali reports additional high-grade zinc-lead-copper drill results from Stratmat Deposit in New Brunswick

March 2, 2015
17.1 metres* at 5.94% Zn, 3.02% Pb, 0.54% Cu, 83g/t Ag, 0.58g/t Au from S-1 Zone;
12.4 metres* at 8.52% Zn, 3.63% Pb, 0.45% Cu, 45 g/t Ag, 0.2 g/t Au from S-5 Lens;
20 metres* at 2.84% Cu and 1g/t Au from S-5 Lens and
18.2 metres* of massive sulphide grading 3% Cu from the New Zone

Vancouver, British Columbia

Trevali Mining Corporation ("Trevali" or the "Company") (TSX: TV; BVL: TV; OTCQX: TREVF; Frankfurt: 4TI) announces a drill results update for its Stratmat Zinc-Lead-Silver-Copper-Gold deposit in the Bathurst Mining Camp of New Brunswick, Canada. The 2014 drilling program, totaling approximately 30,000 metres, was completed in late December and intersected multiple high-grade massive sulphide lenses that remain open for expansion.

The Stratmat deposit currently hosts an Inferred Resource of 5.5 million tonnes grading 6.1% zinc, 2.6% lead, 0.4% copper, 54 g/t silver and 0.6 g/t gold. The recently received, final assay results, from the S-1 Zone and the S-5 Lens have confirmed multiple zones of semi-massive to massive sulphide mineralization (Figure 1 and Table 1). These intercepts continue to validate and enhance Trevali's updated and ongoing geologic modeling, the result of implementation and integration of new exploration tools and detailed review of historic data. SRK Consulting has been retained to provide an updated, independent resource estimate for the Stratmat deposit. It is anticipated that the estimated will be completed during the second quarter.

Drill hole ST-800 targeted the eastern extension of high-grade polymetallic mineralization intersected in drill hole ST-752, which returned 26.75 metres of 7.42% Zn, 1.37% Pb, 1.26% Cu, 94.2 g/t Ag and 2.45 g/t Au (see TV-NR-14-04, February 26, 2014 for details). ST-800 intersected multiple sulphide horizons over a 75-metre interval, including 17.09 metres at 5.94% Zn, 3.02% Pb, 0.54% Cu, 83.29 g/t Ag and 0.58 g/t Au.

Elsewhere in the S-1 Zone, hole ST-796 intersected 12.70 metres of 7.17% Zn, 2.77% Pb, 0.26% Cu, 77.70 g/t Ag and 0.76 g/t Au proving mineral continuity through to neighboring historic hole ST-329A intercept located 40 metres to the west, which reports 15.60 metres of 7.24% Zn and 2.19% Pb along the same productive massive sulphide horizon.

Drill hole ST-804 followed up on previous hole ST-785, which intersected multiple lenses of massive sulphides and high-grade Zn, Pb, Ag, Cu and Au mineralization (see TV-NR-14-23, November 25, 2014 for details). ST-804 intersected 20.15 metres of massive sulphides grading 2.84% Cu and 1 g/t Au, expanding and defining the S-5 Lens, as well as intersecting 12.37 metres of 8.52% Zn and 3.63% Pb expanding the continuous high-grade, hanging-wall mineralization encountered in the previous reported holes ST-785 and ST-793.

In the New Zone, hole ST-797, designed to follow up on the copper-rich massive sulphide lenses intersected in previous holes ST-763 and ST-770, intersected 18.20 metres of massive sulphide grading 3.00% Cu (Table 1).

*Drill hole intervals are approximately 70-100% of true thickness.




Figure 1: Geology map with 3-D projection of mineralization.

Table 1: Stratmat Deposit assay results.

DRILL HOLE / (ZONE) FROM - TO (m) INTERVAL (m) Zn (%) Pb (%) Cu (%) Ag (g/T) Au (g/T)
ST-768 / (S-1) 323.25 - 324.20 0.95 12.39 6.45 0.33 141.20 0.27
ST-772 / (S-1) 291.46 - 293.90 2.44 11.92 6.39 0.43 132.98 3.28
319.57 - 321.30 1.73 9.78 3.23 1.33 29.30 0.50
363.00 - 366.47 3.47 4.94 2.13 0.24 52.36 0.41
ST-775 / (S-1) 237.80 - 241.00 3.20 6.70 3.52 0.26 51.79 0.24
ST-777 / (S-1) 107.95 - 110.81 2.86 6.47 2.30 0.84 39.02 0.75
ST-783A / (S-1) 244.90 - 249.60 4.70 0.05 0.03 1.91 7.37 0.26
266.80 - 268.75 1.95 6.57 3.51 1.27 40.07 0.15
382.20 - 386.75 4.55 1.80 0.71 1.13 17.99 0.32
391.80 - 394.80 3.00 16.35 6.44 0.29 187.38 1.11
ST-789 / (S-1) 439.60 - 442.98 3.38 6.20 2.75 0.59 48.89 0.33
ST-791A / (S-1) 468.57 - 471.98 3.41 4.30 2.48 1.40 89.44 0.93
482.46 - 488.83 6.37 8.16 2.63 0.68 30.56 0.59
615.18 - 616.11 0.93 10.77 4.41 0.60 120.30 1.05
ST-794 / (S-1) 399.50 - 402.40 2.90 8.66 4.87 0.63 77.77 0.21
ST-796 / (S-1) 367.90 - 370.20 2.30 11.22 4.40 0.31 82.66 0.42
429.00 - 441.70 12.70 7.17 2.77 0.26 77.70 0.76
518.80 - 523.05 4.25 5.01 2.27 1.00 26.14 0.46
ST-800 / (S-1) 113.75 - 115.11 1.36 7.94 1.25 1.26 32.64 0.62
302.68 - 319.77 17.09 5.94 3.02 0.54 83.29 0.58
326.64 - 334.20 7.56 3.24 1.86 0.18 55.61 0.54
332.80 - 334.20 1.40 9.77 5.94 0.16 182.32 1.28
372.81 - 375.29 2.48 7.24 2.78 0.11 68.80 0.42
ST-792 / (S-5) 149.50 - 151.75 2.25 13.35 4.20 4.14 44.31 0.28
330.80 - 332.42 1.62 9.57 5.72 0.53 94.63 0.93
ST-804 / (S-5) 380.07 - 392.44 12.37 8.52 3.63 0.45 45.20 0.22
421.80 - 441.95 20.15 0.41 0.12 2.84 20.28 1.02
ST-795 / (New Zone) 605.94 - 607.27 1.33 6.00 1.22 0.23 31.40 0.27
ST-797 / (New Zone) 295.65 - 297.75 2.10 9.63 4.05 0.58 58.62 0.25
574.60 - 592.80 18.20 0.12 0.02 3.00 9.38 0.26
607.85 - 609.10 1.25 0.06 0.02 2.54 6.80 0.32
648.60 - 650.15 1.55 0.09 0.01 2.58 5.30 0.28
ST-799 / (New Zone) 672.80 - 674.32 1.52 7.09 1.67 0.18 17.92 0.28


Intervals are approximately 70-100% of true thickness.

Figure 2: 3D longitudinal section view of the Stratmat Deposits looking N330??


In order to add value and continue to advance the Stratmat Deposit and Halfmile Mine towards a production decision point in a timely manner, including the possibility for a second stand-alone milling facility, the Company has closed a non-brokered flow-through financing for aggregate gross proceeds of approximately $5.1 million (comprised of 4,436,957 common shares issued at a price of $1.15 per share). The securities issued pursuant to the financing are subject to a statutory hold period which expires on June 28, 2015.

The Company's re-start program at its 3,000-tonne-per-day Caribou polymetallic mine continues to advance and remains on track for Q2-2015 commissioning. A more detailed Caribou re-start update will be provided in the near future.

Qualified Person and Quality Control/Quality Assurance
EurGeol Dr. Mark D. Cruise, Trevali's President and CEO and Daniel Marinov, P.Geo, Trevali's Vice President of Exploration, 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. D. Cruise is not independent of the Company, as he is an officer, director and shareholder. Mr. Marinov is not independent of the Company as he is an officer and shareholder. On-site personnel at the project rigorously collect and track samples which are then security sealed and shipped to ACME Laboratories (ACME) preparation facility in Val D'Or, Quebec for crushing and splitting and coarse rejects were assayed at ACME in Vancouver, BC. ACME quality system complies with the requirements for the International Standards ISO 9001:2000 and ISO 17025: 1999. Analytical accuracy and precision are monitored by the analysis of reagent blanks, reference material and replicate samples. Quality control is further assured by the use of international and in-house standards. Blind certified reference material is inserted at regular intervals into the sample sequence by Trevali personnel in order to independently assess analytical accuracy. Finally, representative blind duplicate samples are routinely forwarded to an ISO compliant third party laboratory for additional quality control.

Trevali is a zinc-focused, base metals mining company with one producing operation 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 H1-2015 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 website ( 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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