Teal Valley T.TV

Caribou PEA expected in one or two weeks

[ccrfmac]

Vancouver, British Columbia...Trevali Mining Corporation ("Trevali" or the "Company") (TSX: TV; BVL: TV; OTCQX: TREVF; Frankfurt: 4TI) announces the intersection of multi-lens massive-to-disseminated sulphides in diamond drill hole BR-1005 at the Caribou Zinc-Lead-Copper-Silver Mine Project in the Bathurst Mining Camp of New Brunswick, Canada. This newly discovered mineralization is located approximately 450 metres below the currently defined resource at the Caribou deposit.

Results of this diamond drill hole further confirm the presence of a very significant mineralizing system at the Caribou deposit that remains open for expansion. All historic drill holes below the current resource have intersected significant sulphide mineralization.

Figure 1 shows the location of BR-1005 in relation to the Caribou resource, and intervals are summarized in Table 1. A listing of selected significant drill hole intercepts shown in Figure 1 are listed in Table 2.
Table 1: Downhole mineralized intervals of drill hole BR-1005

From (metres)	To (metres)	Interval (metres)	Mineral Description
1072.71	1076.74	4.03	Massive Sulphides
1081.55	1083.72	2.17	Disseminated Sulphides

Due to technical difficulties, this deep hole failed to test the entire favourable productive host-rock sequence. Geochemical assays are pending, however, the geological results are sufficiently encouraging that Trevali plans to wedge off the parent drill hole to better test the prospective horizon approximately 150 metres up-dip of the intercept. Additionally borehole electromagnetics ("BHEM") will be utilized in order to help image the sulphide horizon and to define follow-up targets.

The Caribou deposit currently hosts a measured and indicated resource of 7,230,000 tonnes grading 6.99% Zn, 2.93% Pb, 0.43% Cu, 84.4 g.t Ag and 0.9 g/t Au, plus an additional inferred resource of 3,660,000 tonnes grading 6.95% Zn, 2.81% Pb, 0.32% Cu, 78.3 g.t Ag and 1.2 g/t Au.

Ongoing Exploration at Caribou

During the fourth quarter of 2013, the Company initiated a property-wide compilation of all previous exploration work. This compilation coupled with a newly acquired Quantec Geoscience Titan 24 geophysical survey is being used to identify high priority targets on the under-explored Caribou property. A follow-up, property-wide diamond drill program supported by BHEM is in progress.



Figure 1: 3D View (Looking N260° -5°) of the Caribou deposit and drill hole BR-1005

Table 2: Historic diamond drill hole assay intervals

Drillhole	From (metres)	To (metres)	Interval (metres)	Ag (gm/t)	Au (gm/t)	% Cu	% Pb	% Zn
DDH112B	1025.21	1027.15	1.94	53.65	0.16	0.22	2.86	5.45
	1036.53	1041.60	5.07	57.71	0.75	0.34	2.56	5.28
	1064.49	1065.58	1.09	63.40	3.57	0.41	2.20	5.68
DDH076	957.38	963.17	5.79	146.60	1.19	0.28	3.93	8.46
	973.16	974.69	1.53	62.03	2.74	0.45	2.23	6.24
DDH076A	769.62	772.52	2.90	88.46	1.53	0.48	4.25	7.91
	796.14	797.97	1.83	46.28	1.71	0.35	1.62	6.05

Caribou Preliminary Economic Assessment

The independent Preliminary Economic Assessment for the Company's Caribou Mine and Mill Complex, being prepared by SRK Consulting (Canada) Inc., is nearing completion and expected within the next one-to-two weeks. The study will form the basis for Trevali's restart of the Caribou operations in 2015.

Q1-2014 Financial Results

Trevali will release financial results for its first quarter period ending March 31, 2014 on May 15, 2014 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 16, 2014, to review the financial results. Participants are advised to dial in 5-to-10 minutes prior to the scheduled start time of the call.

Conference call dial-in details:

Toll-free (North America): 1-800-769-8320

Toronto and international: 1-416-340-8530

Audio Webcast: https://www.gowebcasting.com/5537

Qualified Person and Quality Control/Quality Assurance

EurGeol Dr. Mark D. Cruise, Trevali's President and CEO and M. Dayle Rusk, P.Geo, Trevali's Director, Geology, 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. Ms. Rusk is not independent of the Company as she is an officer and shareholder.

ABOUT TREVALI MINING CORPORATION

Trevali is a zinc-focused base metals mining company with operations in Peru and Canada.

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

In Canada, Trevali owns the Caribou mine and mill, Halfmile mine and Stratmat polymetallic deposit all located in the Bathurst Mining Camp of northern New Brunswick. Initial trial production from the Halfmile underground mine was successfully undertaken in 2012 and the Company anticipates commencing operations at its 3,000-tonne-per-day Caribou Mill Complex in 2015.

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 (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

Contact Information:
Steve Stakiw
Vice President, Investor Relations and Corporate Communications
Email: [e-mail]
Phone: [phone] / Direct: [phone]