Oyu Tolgoi Production on Target

Production from open-pit mining at Turquoise Hill Resources’ Oyu Tolgoi copper-gold-silver operation in Mongolia’s South Gobi region is reported to be on target to meet the 2016 production guidance of 175,000 metric tons (mt) to 195,000 mt of copper in concentrates and 255,000–285,000 oz of gold.

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Oyu Tolgoi Moves Toward Restart of Underground Mine Development

Turquoise Hill Resources reported in early June that Oyu Tolgoi LLC has drawn down approximately $4 billion of a project finance facility signed in December 2015 for development of block cave underground mining at the Oyu Tolgoi copper-gold-silver mining complex in southern Mongolia. The boards of Oyu Tolgoi LLC, Turquoise Hill and Rio Tinto approved the restart of underground development at Oyu Tolgoi in early May (E&MJ, June 2016, p. 4).

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Finders Strips First Copper at Expanded Wetar Operations

Finders Resources announced in mid-June that it has plated and stripped the first copper at the recently commissioned, 25,000-metric-ton-per-year (mt/y) copper cathode solvent extraction/electrowinning (SX-EW) plant at its Wetar copper project on Wetar Island, Indonesia. Production from the new plant will add to production of an already-operating, 3,000-mt/y SX/EW plant at the project, increasing project capacity to 28,000 mt/y of cathode copper. Mine life is estimated at 10.5 years.

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Alacer Advances Çöpler Sulphide Gold Project

Alacer Gold’s board of directors has approved construction of the Çöpler sulphide project at its 80% owned Çöpler gold mine in the Erzincan province, eastern Turkey. The Çöpler mine has been processing oxide ore via an open-pit, heap-leach process since late 2010. A definitive feasibility study of sulphide ore processing via whole ore pressure oxidation was completed in June 2014.

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