THOMPSON CREEK METALS COMPANY INC.

Thompson Creek Metals announced changes to its 2009 estimates for molybdenum sales, molybdenum production and cash production costs. The 2009 cash production costs are currently estimated in the range of $5.75 to $7.00 per pound of molybdenum produced, down from a previously estimated range of $6.25 to $7.25 per pound, with costs at the Thompson Creek Mine expected to be approximately $5.50 to $6.50 per pound (compared to previous guidance of $6.00 to $7.00 per pound) and costs at the Endako Mine expected to be approximately $6.50 to $7.50 per pound (compared to previous guidance of $7.00 to $8.00 per pound). This assumes a US$/Cdn$ exchange rate of 1.15 (compared to previous guidance of 1.20).