Trevali Resources Corp.

Trevali Resources Corp.

June 26, 2008 12:34 ET

Trevali Intersects 165.2 Metres of 3.24% Zinc at Magistral South Zone on Santander Silver-Lead-Zinc Mine Project in Peru

Including 30.5 metres @ 10.2% zinc and 0.9 oz/t (27g/t) indium Additional Highlights from Magistral North Zone Include: 60.5 m @ 8.7 oz/t (270g/t) silver equivalent 33.6 m @ 9 oz/t (279g/t) silver equivalent 10.7 m @ 27.3 oz/t (849.5g/t) silver equivalent

VANCOUVER, BRITISH COLUMBIA--(Marketwire - June 26, 2008) - Trevali Resources Corp. ("Trevali" or the "Company") (CNQ:ZINC)(PINK SHEETS:TREVF)(FRANKFURT:4TI) is pleased to announce that diamond drilling has confirmed the presence of a significant sulphide body at the Magistral South zone on its Santander silver-lead-zinc project located in the Cerro de Pasco region of west-central Peru. Additionally, drilling continues to intersect broad zones of silver-rich polymetallic mineralization at the Magistral Norte zone located approximately 700 metres to the North.

Hole SAN-046 targeted the down-dip extension of massive sulphide mineralization successfully intersected in SAN-42 at Magistral South. The hole intersected 165.2 metres at 3.24% zinc within which 56.45 metres returned 6.79% zinc, 0.67% lead, 0.8 oz/t (26 g/t) silver, 0.1% copper and 0.5 oz/t (16.3 g/t) indium -- including 30.5 metres at 10.23% zinc, 0.32% lead, 0.6 oz/t (18.6 g/t) silver, 0.12% copper and 0.9 oz/t (27 g/t) indium. It is a highly instructive hole as it demonstrates the presence of bulk-tonnage grade base metal mineralization with significantly higher grades present in the Magistral Sur pipe proper which has an estimated true thickness of approximately 35-37 metres at its pierce-point.

A total of 84 diamond drill holes have been completed to date of which the Company has received assay results from the first 46 holes (Table 1 - summaries of all the holes and location maps are available on the Company's website).

Table 1: Summary assay results - Santander Project
Zone/ hole Ag
Borehole Inter- equiv-
(dip/ val alent Ag oz
azimuth) From - To (i) (ii) (g/t) Pb% Zn% Cu%
Magistral 115.2- 60.5m 8.7oz 1.8oz 2.45% 2.44% 0.1%
Norte 175.7m (270g/t) (54.9g/t)
(-50/N60E) Inc 134.9- 33.5m 13oz 2.5oz 3.72% 3.92% 0.15%
168.4m (412g/t) (77g/t)

Inc 151.4- 15.5m 18.6oz 3oz 5.37% 5.72% 0.2%
166.9m (578g/t) (94.9g/t)
Magistral 79.35- 28.75m 5.2oz 0.9oz 1.84% 1.28% 0.06%
Norte 108.1m (163.5g/t) (27g/t)
(-49/N60E) Inc 103.75- 4.35m 27.9oz 4.2oz 10.99% 5.86% 0.33%
108.1m (869.9g/t) (131.4g/t)
Magistral 83.3- 14.6m 7.6oz 1.1oz 2.93% 1.73% 0.08%
Norte 97.9m (237.6g/t) (34/9g/t)
(-49/N60E) Inc 83.3- 5m 10.9oz 1.9oz 4.58% 1.85% 0.1%
88.3m (237.6g/t) (60.7g/t)

Inc 93.3- 4.6m 11.4oz 1.3oz 3.94% 3.25% 0.13%
97.9m (355.5g/t) (41.8g/t)
Magistral 99.45- 8.15m 15.2oz 3.5oz 2.25% 6.49% 0.05%
Norte 107.6m (474g/t) (107.8g/t)
Magistral 78.1- 6.5m 7.3oz 3oz 1.59% 1.29% 0.12%
Norte 84.6m (228g/t) (93.3g/t)
(-49/N60E) 94.1- 22.8m 8.1oz 1.1oz 2.41% 2.54% 0.1%
116.9m (252.6g/t) (35.3g/t)

Inc 102.6- 6.6m 18.2oz 2.3oz 5.46% 5.81% 0.22%
109.2m (566.7g/t) (72.9g/t)
Magistral 112.3- 8.5m - 3.9g/t 0.63% 1.65% 0.01%
Sur 120.8m
Magistral 103.9- 7m 7.4oz 2.3oz 1.79% 1.9% 0.05%
Norte 110.9m (231g/t) (72.4g/t)
(-49/N60E) Inc 103.9- 3.55m 11.7oz 3.8oz 2.62% 3.09% 0.06%
107.45m (362.6g/t) (119.5g/t)
Magistral 110.4- 30.15m - - - 0.65% -
Sur 140.55m
Magistral 86.9- 16.2m 6.4oz 1.8oz 0.57% 2.74% 0.03%
Norte 103.1m (198g/t) (57.8g/t)
(-51/N60E) Inc 91.4- 4.5m 16.4oz 5.7oz 0.84% 7.09% 0.05%
95.9m (511.8g/t) (178.7g/t)
Magistral 166.15- 32.85m 6.2oz 0.45oz 0.2% 4.06% 0.03%
Sur 199m (193.4g/t) (14g/t)
(-41/240) Inc 166.15- 4.35m 16oz 1.2oz 0.27% 10.65% 0.09%
170.5m (498g/t) (36.3g/t)
Magistral 93.95- 33.6m 9oz 0.9oz 2.93% 2.81% 0.1%
Norte 127.55m (279g/t) (29.4g/t)
(-50/N60E) Inc 107.1- 11.1m 14oz 1.5oz 4.09% 4.74% 0.18%
118.2m (436g/t) (48.5g/t)

Inc 113.25- 4.95m 24.7oz 2.6oz 7.16% 8.36% 0.34%
118.2m (767g/t) (82.3g/t)
Magistral 150.05- 4m - 5g/t 0.01% 0.95% -
Sur 154.05
Magistral 68.05- 43.05m 2.8oz 0.4oz 0.85% 0.86% 0.03%
Norte 111.1m (87.7g/t) (13.3g/t)
(-49/N60E) Inc 95.25- 11.35m 7.4oz 0.9oz 2.51% 2.22% 0.06%
106.6m (230.6g/t) (27.8g/t)

152- 10.7m 27.3oz 4.9oz 8.04% 8.25% 0.2%
162.7m (849.5g/t) (151.9g/t)
Magistral 222.95- 165.2m 5.4oz 0.5oz 3.24% 0.35% 0.05%
Sur 388.15m (169.7g/t) (15.2g/t)
(-47/240) Inc 322.7- 56.45m 11oz 0.8oz 6.79% 0.67% 0.1%
379.15 (346.6g/t) (26g/t)

Inc 342.9- 30.5m 15oz 0.6oz 0.32% 10.23% 0.12%
373.4m (469g/t) (18.6g/t)
(i) Exploration to date suggests mineralized zones or mantos are dipping
west at approximately 70 degrees; however, it is anticipated that
future mapping of an underground exploration adit will allow a more
accurate estimation of true thickness.
(ii) Silver equivalent calculated using following metal prices: Ag $15/oz,
Pb $0.9/lb, Zn $0.9/lb, Cu $3/lb and assumes 100% recoveries.

The co-existence of elevated indium is an added bonus and may positively affect the project economics. It is anticipated that additional indium will be intersected as drilling tests the hotter or deeper portions of the hydrothermal system(s).

Indium is a soft, silver-white metal that is highly malleable. It is principally used the manufacture of LCD flat-screens as an optical film or coating. The metal is also used in specialty alloying, welding/soldering applications and in alkaline dry cell batteries as a replacement for mercury - rendering them more environmentally friendly and also delivering more energy per battery.

It is worth noting that indium prices have increased substantially since the start of June - currently US$685 per kg -- and is predicted to remain high due to demand for LCD displays and flat-screen televisions which is expected to rise by approximately 25 - 35% per annum.

The current drill program at Santander represents the first modern exploration on the property and is designed to test the Magistral zones to approximately 200 metres vertical depth. The majority of the holes have intersected significant sulphide mineralization. Mineralization remains open at depth in all 3 bodies. Property-scale structural reconstructions and comparisons with the old Santander Pipe indicates the Magistral zones have very significant additional depth potential conservatively interpreted to range from 300 to 500 metres vertical extent. Drilling is in progress.

Magistral Norte, the most northerly of the Magistral bodies lies only 1.5-km north of the Company's mineral processing plant that is currently undergoing a refurbishment program.

Project Background

The Santander silver-lead-zinc mine project is located approximately 215 km by road from Lima, in the western extent of Peru's prolific Cerro de Pasco mineral district. The mine operated from 1958-1993 - targeting a single Carbonate Replacement Deposit-type pipe and manto structure. Approximately 8 million tonnes grading +7% zinc, 1-4% lead and 60 grams/tonne silver plus by-product copper was processed - initially from open pit operations and then from underground mining reaching a depth of 500 metres below surface in rock grading about 11% zinc. Drilling by past operators indicates mineralization remains open to depth - extending at least 200 metres further beneath the previous workings.

Recent exploration drilling by the Company has focused on three other similarly mineralized manto to pipe-type structures (Magistral North, Central and South) situated in favourable carbonate host rocks and located a couple of kilometres northwest -- along the same structural trend hosting the Santander orebody.

Site infrastructure at the formerly-producing operation includes a large camp and associated support facilities, an ore processing / concentrator plant (including various crushers, mills and cell houses) able to produce zinc, lead-silver and copper concentrates, and the Tingo hydroelectric power-station, located some 17-km down-valley to the west.

Trevali's current diamond drill program represents the first modern exploration on the large, 4,455-hectare (44 km2), mine and exploration lease.

Qualified Person and Quality Control/Quality Assurance

EurGeol Dr. Mark D. Cruise, Trevali's President and CEO and a qualified person as defined by National Instrument 43-101, has 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 and shareholder.

The work programs at Trevali were designed by, and are supervised by, Mark D. Cruise, President & CEO, Trevali, and Les Oldham, General Manager, Consultora Minera Anglo Peruana S.A. (independent geological consultants), who together are responsible for all aspects of the work, including the quality control/quality assurance program. On-site personnel at the project rigorously collect and track samples which are then security sealed and shipped to ACME Laboratories, Vancouver, for assay. ACMEs 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 ACME and an ISO compliant third party laboratory for additional quality control.

About Trevali Resources Corp.

The Company is currently exploring and conducting various scoping level studies on the former Santander polymetallic mine Peru in order to ascertain as best as possible the cost and feasibility of re-commencing mining and milling operations in a timely manner should exploration prove to be successful.

The common shares of the Company are currently listed on the CNQ (symbol ZINC). For further details on the Company 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 TREVALI RESOURCES CORP.

Mark D. Cruise, President

The CNQ has not reviewed and does not accept responsibility for the adequacy or accuracy of this release.

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