November 1, 2010 – News Release 13 WESTERN COPPER ANNOUNCES SIGNIFICANT RESOURCE INCREASE AT CASINO Near-surface Supergene Sulphide Zone increased 90% to 252 Million Tonnes (M+I) (1) Measured & Indicated Supergene + Hypogene mineralization at 1.06 Billion Tonnes (1) Inferred Supergene + Hypogene mineralization increased 6 times to 1.70 Billion…