Western Copper Continues Extension of Higher Grade Supergene Mineralization

VANCOUVER, B.C. Western Copper Corporation (“Western Copper” or the “Company”) (TSX:WRN) is pleased to announce the final results from the 2010 exploration program at its wholly owned Casino Project, located in the Yukon.

The 2010 drill program completed in August confirmed the flat-lying, shallow copper and gold enriched supergene zone extends over a 2.0 km by 1.2 km area — a significant expansion over its previously outlined extent as identified in the 2008 Pre-feasibility Study (Figure 1). The average core length of the supergene from the drilling is 85 m. The copper and gold enriched zone remains open to the north for further expansion.

Notable results from the 14 holes drilled since the last update include hole CAS-074 with 241.9 m of 0.80 CuEq, which continued the expansion of the supergene zone to the southwest. Expanding the zone to the still open north is hole CAS-079 with 30.0 m of 0.45 CuEq.

Additional infill drilling was also completed as part of this drilling campaign which confirmed the excellent grades through the supergene and hypogene zones in the south of the deposit with CAS-082 returning 117.0 m of 0.87 CuEq in the supergene and 226.2 m of 0.56 CuEq in the hypogene.

Highlights of the holes drilled and assayed since the last press release are summarized in Table 1 and a complete listing of drill-holes and results drilled in 2010 are shown in Table 2. Hole locations are shown on Figure 1.

Table 1: Highlights from current drilling program

Drill-holeFrom (m)To (m)Width (m)Au (g/t)Cu (%)Mo (%)CuEq (%)
CAS-074124.0241.9117.90.380.330.0360.80
CAS-07961.091.030.00.100.250.0240.45
CAS-082
Supergene117.0234.0117.00.520.400.0200.87
Hypogene234.0460.2226.20.280.250.0210.56

Copper Equivalent Metal Prices: US$2.00/lb copper, US$875.00/oz gold and US$11.25/lb molybdenum

Western Copper has now completed 26,400 m of new drilling since the pre-feasibility was completed in 2008. Nearly all of the new drilling has been drilled in areas outside of the previously defined area of mineralization or in areas previously considered waste.

“The expansion of the higher grade, near surface supergene mineralization into areas previously thought to waste should positively impact the economics of the Casino deposit by lowering the stripping ratio” said Dale Corman, Chairman & CEO, “This higher grade supergene gold and copper mineralization remains open to the north showing there is further potential to improve both the size of the supergene mineralization and the economics of the project”.

The Casino project is located 380 km northwest of Whitehorse, Yukon and has a NI 43-101 compliant reserve estimate containing 8 million oz of gold, 4.4 billion lb of copper, and 475 million lb of molybdenum, contained in approximately 1 billion tonnes of ore.

Scott Casselman, P.Geo., is the qualified person responsible for the execution of the Casino Project exploration program and the preparation of the technical information in this news release.

QA/QC including assurance of chain of custody has been implemented in accordance with industry best practices. Split core samples are prepared and analyzed by ALS Chemex. Prepared samples are initially run using a four acid digestion process and conventional multi-element ICP-AES analysis. Additional assaying for total copper and molybdenum is run using a 4 acid digestion — AES or AAS method to a 0.001% detection limit. Gold assays are run using 30 gram sample fire assay with an AA finish to a 0.005 ppm detection limit. The QA/QC procedure involves regular submission of CertifiedAnalytical Standards and blanks andproperty specific duplicates, with check assaying performed by Acme Analytical Laboratories Ltd.

ABOUT WESTERN COPPER CORPORATION

Western Copper is a Vancouver-based exploration and development company with properties containing significant copper, gold and molybdenum resources and reserves. The Company has 100% ownership of four Canadian properties. The two most advanced projects are the Casino Project and the Carmacks Copper Project, both located in the Yukon Territory. The Casino Project is one of the world’s largest open-pittable gold, copper, silver and molybdenum deposits. For more information, visit http://www.westerncoppercorp.com

 

Casino_Fig1_PlanMap_CAS-074 - CAS-082
Figure 1: Plan map of drill holes

On behalf of the board,

“Dale Corman”

F. Dale Corman
Chairman & CEO
Western Copper Corporation

For more information, please contact:

Paul West-Sells
President & COO, Corporate Development

Julie Kim
Manager, Investor Relations & Corporate Communications

Call: 1.888.966.9995 or 604.684.9497
Email:

Cautionary Notes

This press release includes certain “Forward-Looking Statements” within the meaning of section 21E of the United States Securities Exchange Act of 1934, as amended. All statements, other than statements of historical fact, included herein, including without limitation, statements regarding potential mineralization and reserves, exploration results and future plans and objectives of Western Copper Corp. are forward-looking statements that involve various risks and uncertainties. There can be no assurance that such statements will prove to be accurate and actual results and future events could differ materially from those anticipated in such statements.

Notice to US Investors: The United States Securities and Exchange Commission permits U.S. mining companies, in their filings with the SEC, to disclose only those mineral deposits that a company can economically and legally extract or produce. We use certain terms on this news release, such as “measured,” “indicated,” and “inferred” “resources,” that the SEC guidelines strictly prohibit U.S. registered companies from including in their filings with the SEC. U.S. investors are urged to consider closely the disclosure in Western’s Form 20-F, File No. 000-52231, which may be secured from the Company, or from the SEC’s website at https://www.sec.gov.

Table 2: Complete 2010 Drill results

HoleFromToWidth (m)Au(g/t)Ag g/tCu %Mo %Cu Eq%Category
CAS-041no significant mineralization
CAS-0428.0044.136.10.130.70.030.000Leached CAP
44.1083.839.70.170.20.200.0000.31Supergene
83.80248.5164.70.080.20.020.0000.07Hypogene
CAS-04321.3441.620.30.241.60.110.052Leached CAP
41.6091.549.90.151.10.240.0130.42Supergene
91.45243.8152.40.110.50.100.0270.33Hypogene
CAS-0446.8050.743.90.161.20.040.012Leached CAP
50.6597.546.90.161.10.390.0200.62Supergene
97.50224.0126.50.100.20.070.0130.21Hypogene
CAS-0453.0541.038.00.151.00.050.008Leached CAP
41.0083.042.00.151.00.350.0070.50Supergene
82.95198.1115.20.251.30.130.0100.36Hypogene
CAS-0467.1137.230.10.211.30.070.012Leached CAP
37.20114.777.50.121.30.160.0160.33Supergene
114.70211.296.50.070.40.070.0180.22Hypogene
CAS-0473.0560.657.60.111.20.040.010Leached CAP
60.60151.090.40.090.90.180.0160.34Supergene
151.00193.642.60.130.90.090.0120.25Hypogene
CAS-0484.3060.756.40.110.90.040.013Leached CAP
60.7095.634.90.121.40.290.0090.43Supergene
95.60208.2112.60.291.00.100.0120.36Hypogene
CAS-0499.8053.343.50.141.70.060.023Leached CAP
53.30146.292.90.150.90.210.0180.41Supergene
146.20244.298.00.131.00.110.0220.32Hypogene
CAS-0508.3061.953.60.151.10.050.017Leached CAP
61.90186.2124.30.161.00.190.0150.38Supergene
186.20219.533.30.080.40.090.0190.24Hypogene
CAS-05150.2051.81.60.361.00.060.007Leached CAP
51.8094.442.60.201.00.320.0100.51Supergene
94.37268.2173.90.161.20.160.0090.31Hypogene
CAS-05212.0080.668.60.151.10.200.0090.35Supergene
80.60248.1167.50.100.80.090.0190.26Hypogene
CAS-05314.5039.825.30.131.20.070.004Leached CAP
39.8071.331.50.160.60.250.0020.37Supergene
71.25236.2165.00.160.60.150.0040.28Hypogene
CAS-05453.0055.82.80.142.60.050.003Leached CAP
55.75175.4119.70.241.20.220.0030.40Supergene
175.40249.974.50.141.20.160.0060.29Hypogene
CAS-05526.5036.810.30.180.90.040.002Leached CAP
36.75104.267.40.231.30.320.0040.50Supergene
104.15201.597.40.103.00.120.0070.25Hypogene
CAS-05611.4061.149.70.190.60.080.008Leached CAP
61.10125.864.70.171.00.210.0150.40Supergene
125.80199.673.80.130.80.110.0160.29Hypogene

 

HoleFromToWidth (m)Au(g/t)Ag g/tCu %Mo %Cu Eq%Category
CAS-05728.53130.0101.50.101.00.050.003Leached CAP
130.00249.9119.90.201.40.170.0030.32Supergene
CAS-058no significant mineralization
CAS-05915.5450.635.10.221.60.080.006Leached CAP
50.60102.051.40.201.20.350.0110.54Supergene
102.00210.3108.30.140.90.130.0150.32Hypogene
CAS-06020.7044.623.90.140.40.030.005Leached CAP
44.60119.174.50.151.20.190.0040.31Supergene
119.08249.9130.90.371.50.120.0120.44Hypogene
CAS-06113.7250.236.50.132.20.060.008Leached CAP
50.24154.8104.60.201.40.220.0040.38Supergene
154.80249.995.10.253.70.190.0060.42Hypogene
CAS-06211.9075.663.70.091.30.020.026Leached CAP
75.60173.798.10.242.50.270.0210.57Supergene
173.65250.276.60.363.30.260.0100.57Hypogene
CAS-0639.0067.558.50.211.40.030.034Leached CAP
67.50197.8130.30.342.60.370.0200.72Supergene
197.78201.23.40.232.10.240.0080.45Hypogene
CAS-0641.5255.253.70.101.40.030.010Leached CAP
55.20163.8108.60.101.90.170.0120.31Supergene
163.80203.339.50.141.20.100.0090.25Hypogene
CAS-0655.0026.021.00.161.40.010.0290.29Hypogene
26.00249.5223.50.050.70.020.0030.07Waste
CAS-06620.6059.338.70.343.40.020.032Leached CAP
59.30178.8119.50.363.20.220.0200.59Supergene
178.83201.222.30.140.90.050.0030.17Hypogene
CAS-0672.4579.777.30.081.50.040.015Leached CAP
79.70199.7120.00.151.50.180.0050.31Supergene
199.70249.950.20.110.70.050.0090.17Hypogene
CAS-0688.1046.338.20.141.20.030.011Leached CAP
46.30229.9183.60.151.70.150.0110.32Supergene
229.90304.874.90.131.10.050.0060.18Hypogene
CAS-0690.4061.360.90.060.80.050.012Leached CAP
61.3099.538.20.080.70.140.0340.39Supergene
99.50250.2150.70.100.80.080.0080.20Hypogene
CAS-0700.00116.0116.00.131.30.010.018Leached CAP
116.00239.0123.00.163.60.210.0250.48Supergene
239.00295.656.60.121.50.110.0300.37Hypogene
CAS-0717.6272.665.00.091.10.030.020Leached CAP
72.60160.688.00.100.90.170.0180.34Supergene
160.60251.590.90.060.70.070.0040.14Hypogene
CAS-072no significant mineralization
CAS-0734.77105.4100.60.130.90.010.043Leached CAP
105.40219.8114.40.341.80.340.0720.98Supergene
219.80330.7110.90.241.50.160.0640.69Hypogene

 

HoleFromToWidth (m)Au(g/t)Ag g/tCu %Mo %Cu Eq%Category
CAS-0746.20124.0117.80.322.80.020.041Leached CAP
124.00241.9117.90.383.70.330.0360.80Supergene
241.85379.8138.00.191.60.140.0130.35Hypogene
CAS-075no significant mineralization
CAS-0763.0594.090.90.040.60.040.001Leached CAP
93.96127.033.00.130.50.140.0040.25Supergene
126.96263.7136.70.180.90.130.0040.27Hypogene
CAS-0774.6046.842.20.131.00.040.010Leached CAP
46.80170.7123.90.140.90.240.0100.39Supergene
CAS-0789.0045.736.70.171.80.030.015Leached CAP
45.65150.3104.60.140.80.270.0080.39Supergene
CAS-0793.2561.057.80.190.90.040.009Leached CAP
61.0091.030.00.100.30.250.0240.45Supergene
91.00153.362.30.090.40.040.0130.17Hypogene
CAS-0800.008.08.00.220.50.070.006Leached CAP
8.00145.2137.20.171.60.250.0080.41Supergene
145.20157.011.80.111.30.120.0130.27Hypogene
CAS-0812.00208.7206.70.170.90.020.001Leached CAP
207.70238.731.00.191.00.140.0010.28Supergene
238.70451.1212.40.130.80.060.0010.16Hypogene
CAS-0820.00117.0117.00.452.20.030.015Leached CAP
117.00234.0117.00.523.00.400.0200.87Supergene
234.00460.2226.20.281.90.250.0210.56Hypogene
CAS-0834.0065.461.40.171.10.050.005Leached CAP
65.40233.6168.20.140.80.150.0100.30Supergene
233.60374.9141.30.090.60.090.0100.21Hypogene
CAS-0840.00116.5116.50.271.90.040.007Leached CAP
116.50315.0198.50.322.40.270.0160.58Supergene
315.00448.7133.70.291.90.300.0210.62Hypogene
CAS-0853.96154.0150.00.260.90.010.002Leached CAP
154.00217.063.00.301.30.250.0120.51Supergene
217.00365.8148.80.171.40.080.0020.21Hypogene
CAS-0864.0030.026.00.171.20.040.035Leached CAP
30.00183.0153.00.221.80.230.0220.51Supergene
183.00385.6202.60.222.00.180.0440.58Hypogene
CAS-0874.01166.1162.10.221.40.000.003Leached CAP
166.12234.067.90.373.00.280.0140.62Supergene
234.00397.5163.50.170.90.110.0090.28Hypogene