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Kazakhstan
Orlovsky Mine (East Region and Bozymchak Operation)

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 Location:
139 km NW from Ust-Kamenogorsk, Kazakhstan

  Regional Office:
8 Zh.Omarova Street
Almaty
Kazakhstan
050020
Phone  ...  Subscription required
WebsiteWeb
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  • Overview
  • Owners
  • Geology
  • Mining
  • Processing
  • Production
  • Reserves
  • Fleet
  • Personnel
  • Filings & News

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Overview

StageProduction
Mine TypeUnderground
Commodities
  • Copper
  • Zinc
  • Gold
  • Silver
  • Lead
Mining Method
  • Drift & Fill
Processing
  • Flotation
Mine Life2022


Owners & OPERATOR

Source: p. 140, 181
CompanyInterestOwnership
KAZ Minerals plc. 100 % Indirect
Vostoktsvetmet LLC (operator) 100 % Direct

Deposit Type

  • VMS


Summary:

Orlovsky is an active underground mine exploiting a large, polymetallic, high grade, and gold rich VMS deposit. It comprises the Main Orebody, which comprises an upper and lower part with an irregular pod-like shape, 20° to 30° dip to the SW, average thickness of 35m and down-dip extent of 600 m. It is now almost worked out, with the remaining resources consisting of remnant blocks distributed in the lower part of the orebody and representing some 25% of the whole deposit. A 0.85 Mt oxidised cap on the upper part of the orebody has been excluded from the resources since until now, no technology has been successfully developed to treat it.

350 m to the SW of the lower part of the Main Orebody is the New Orebody comprising a southern portion with a 10° to 15° dip to the SW and thickness of up to 56m and a northern portion with very high grade and thickness of 5-20 m. The combined New Orebody occupies a surface area in long section of some 250 m by 150 m and accounts for the rest of the resources in the deposit.


Mining Methods

  • Drift & Fill


Summary:

Due to the relatively flat nature of the ore, mechanised drift and fill is the mining method used. Shaft hoisting of ore is used. A rudimentary figure provided in the IPO indicates that mining has been concentrated above 500 m depth prior to 2011 but is now focused on resources up to 1000 m in depth.

Production from Orlovsky over the remaining life of the mine is expected to be at or below current output, as mining takes place in deeper horizons and more challenging geological conditions.


Crushing and Grinding


Processing

  • Flotation

Source: Subscription required

Summary:

There is a single concentrator, known as the Zhezken facility, dedicated to the Orlovsky mine and processes ore to produce separate copper and zink concentrates.

Ore is fed from the shaft via an incline conveyor to four main storage bins of approx 1000 t capacity and three secondary storage bins with a capacity of 500 t. There is no crusher at the plant of the ROM ore is fed directly to the primary autogenuos (AG) mill (7 m by 2.5 m) at approximately 190 t/h. Two AG mills are operated in parallel with a thre stage system.

Feed size to the AG -400 mm and the outlet screen of the AG mill cuts off at 5 mm and oversize is fed back into the AG mill. The undersize goes to spiral classifiers where the oversize from the spirals is fed into the second stage ball mill operated in close circuit with a bank of hydrocyclones. The undersize from the spiral goes directly to the bank of hydrocyclones. The undersize from the cyclones is fed to copper flotation and the oversize is ........

Recoveries & Grades:

CommodityParameter201920182017201620152014
Copper Head Grade, % 3.053.243.63.673.693.66
Copper Concentrate Grade, %  ......  Subscription required  ......  Subscription required  ......  Subscription required  ......  Subscription required  ......  Subscription required  ......  Subscription required
Zinc Head Grade, % 4.384.525.48
Zinc Concentrate Grade, %  ......  Subscription required  ......  Subscription required  ......  Subscription required
Subscription required - Subscription is required.

Production:

CommodityUnits201920182017201620152014
Copper kt  ......  Subscription required  ......  Subscription required176219254279
Zinc kt  ......  Subscription required  ......  Subscription required  ......  Subscription required
All production numbers are expressed as concentrate.
Subscription required - Subscription is required.

Operational Metrics:

Metrics201920182017201620152014
Tonnes processed  ......  Subscription required  ......  Subscription required  ......  Subscription required
Annual mining capacity  ......  Subscription required  ......  Subscription required  ......  Subscription required
Annual milling capacity  ......  Subscription required  ......  Subscription required  ......  Subscription required
Ore tonnes mined  ......  Subscription required  ......  Subscription required  ......  Subscription required1,260 kt1,417 kt1,548 kt
Subscription required - Subscription is required.

Reserves at December 31, 2019:

CategoryTonnage CommodityGrade
Proven 3 Mt Copper 2.36 %
Proven 3 Mt Zinc 7.3 %
Proven 3 Mt Gold 1.07 g/t
Proven 3 Mt Silver 57 g/t
Proven 3 Mt Lead 1.6 %
Probable 3.5 Mt Copper 3.77 %
Probable 3.5 Mt Zinc 2.37 %
Probable 3.5 Mt Gold 0.48 g/t
Probable 3.5 Mt Silver 30 g/t
Probable 3.5 Mt Lead 0.56 %
Proven & Probable 6.5 Mt Copper 3.11 %
Proven & Probable 6.5 Mt Zinc 4.66 %
Proven & Probable 6.5 Mt Gold 0.75 g/t
Proven & Probable 6.5 Mt Silver 43 g/t
Proven & Probable 6.5 Mt Lead 1.04 %
Measured & Indicated 10.1 Mt Copper 2.88 %
Measured & Indicated 10.1 Mt Zinc 4.43 %
Measured & Indicated 10.1 Mt Gold 0.79 g/t
Measured & Indicated 10.1 Mt Silver 41 g/t
Measured & Indicated 10.1 Mt Lead 1.03 %


Heavy Mobile Equipment as of May 12, 2011:
HME TypeModelQuantity
Drill 8
Load-Haul-Dump (LHD) ....................... Subscription required 8
Underground truck 9
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Staff:

EmployeesYear
Subscription required 2011

Corporate Filings & Presentations:

DocumentYear
................................... Subscription required 2019
................................... Subscription required 2018
Annual Report 2017
Other 2017
Annual Report 2016
Annual Report 2015
Other 2011
Subscription required - Subscription is required.

Aerial view:

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