Location: Chukotka Autonomous Territory, Russia
Processing: conventional flotation, pressure oxidation/CIL
Ore reserves (JORC): 2.4 Moz gold (at an average grade 9.6 g/t)
Mineral resources (JORC)*: 4.8 Moz gold (at an average grade 8.3 g/t)
Production start date: Q2 2013
Life of mine: 2024
Capex FY2012: 66 US$m
Mayskoye is one of the top five deposits in Russia in terms of gold resources. The Mayskoye project consists of 850 ktpa on-site flotation concentrator nearing commissioning in April 2013 and a high-grade refractory gold deposit.
Primarily the refractory ore will be processed by conventional flotation on site, the concentrate will be shipped to Amursk POX plant where gold dore bars will be produced using pressure oxidation and cyanidation technologies. The production at Mayskoye started in April 2013 with the first concentrate to be processed in Amursk POX in Q4 2013.
In 2012 much development and construction work was completed, with mills installed and the power substation nearing completion. Underground development at Mayskoye is continuing at a steady rate of 1,100 m per month with the commencement of stoping scheduled for 2013 to coincide in time with the planned start-up of the concentrator.
Chaun district of the Chukotka Autonomous Territory in north-eastern Russia.
The deposit is accessible all year round via 187 km of improved unpaved road from the town of Pevek which is a major seaport operating from July to early November.
* Mineral resources are calculated in addition to ore reserves
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