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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