Hazelwood Resources Limited (Hazelwood) released an initial ore reserve estimate for the Big Hill deposit of Proven Reserves of 18.78 Mt averaging 0.11% WO3 and Probable Reserves of 6.43 Mt averaging 0.11% WO3. The deposit's Measured Resources are 22.94 Mt averaging 0.11% WO3, with Indicated Resources of 11.95 Mt grading 0.1% WO3 and Inferred Resources of 12.54 Mt grading 0.08% WO3 for a total resource of 47.43 Mt averaging 0.1% WO3. All the estimates were at a cut-off grade of 0.05% WO3. The deposit is part of the Cookes Creek tungsten project located 70 kilometres from Nullagine in WA. Mineralisation occurs as scheelite veins thought to be related to the spatially-associated Mesoarchean Cookes Creek Monzogranite. Hazelwood is undertaking a definitive feasibility study for the Big Hill deposit, including large scale metallurgical test work on bulk ore samples, which has demonstrated the ability to produce high purity tungsten concentrate. Hazelwood completed an integrated pre-feasibility study in 2010, which incorporated its Big Hill tungsten deposit and its jointly owned ferrotungsten project in Vietnam. In June 2011, Asia Tungsten Products Company Ltd (ATC), which is 60%-owned by Hazelwood (increasing to 100%), completed construction of a ferrotungsten plant in the Vihn Bao district near the Port of Haiphong in northern Vietnam. The plant is expected to have a capacity of approximately 3000 tpa of contained tungsten in the form of 75% grade ferrotungsten. Initial production commenced in April 2013 with 140 tonnes of contained tungsten produced up to August 2013.
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