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Guyana
Aurora Mine

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 Location:
175 km W from Georgtown, Guyana

  Regional Office:
7 North Road, Lacytown
Georgetown
Guyana
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Fax592-225-5824
EmailEmail
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  • Overview
  • Owners
  • Geology
  • Mining
  • Processing
  • Production
  • Reserves
  • Costs & Financials
  • Fleet
  • Personnel
  • Filings & News

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Overview

StageProduction
Mine TypeOpen Pit
Commodities
  • Gold
Mining Method
  • Truck & Shovel / Loader
Production Start...
Mine Life7 years (as of Jan 1, 2021)
For the purpose of fully utilising the resources of the Aurora Gold Mine and securing the sustainable development of the project, according to the Feasibility Study Report on the Mining Project of the Aurora Gold Mine in Guyana published by Zijin Engineering Co., Ltd. in April 2021, it was proposed that joint open-pit mining + underground mining shall be adopted for the overall Aurora Gold Mine.

After the end of the open-pit mining, the mine will turn into underground mining.

The project has commenced construction since November 2021, which will be implemented by phases. The total construction period will be 56 months.


Owners

Source: p. 5,330
CompanyInterestOwnership
Zijin Mining Group Co., Ltd 100 % Indirect
Zijin Mining Group, through its wholly owned subsidiary AGM Inc. (AGM), owns a 100% interest in Aurora.

Contractors

Subscription required - Subscription is required.


Deposit Type

  • Mesothermal
  • Orogenic


Summary:

The gold mineralization at the Mine exhibits features analogous to mesothermal or “orogenic” gold deposits typified by Archean deposits of the Abitibi region, Canada. Features characteristic of the gold mineralization at the Mine include:
• A strong spatial association to large scale shear zones;
• Relative late timing during active compressional deformation;
• A strong spatial association with large scale shear zones;
• Formed during greenschist metamorphic conditions;
• Association with a propylitic-phyllic alteration assemblages; and
• Principally hosted in quartz-ankerite-pyrite veining.

Gold mineralization at Aurora is divided into four main mineralized zones; Rory’s Knoll, East Walcott and Walcott Hill, Mad Kiss and Mad Kiss West, and Aleck Hill and Aleck Hill North.

All the deposits display an association of gold mineralization with quartz veining and pyrite, locally as much as 10%. The auriferous veins developed relatively late in the deformational history and occur as brittle stockworks in more competent host rocks, e.g., Rory’s Knoll diorite and lesser quartz-feldspar porphyry dikes, and as foliation parallel, ribbon-like veins that vary in width from a few centimetres to rarely up to one to two metres wide.

At least three major generations of veining have been observed:
• Early quartz carbonate veins which are typically foliation parallel and folded or truncated.
• Brittle extensional arrays ........


Mining Methods

  • Truck & Shovel / Loader


Summary:

The Mine is in operation with all production to date from open pit mining.

OPEN PIT MINING
Open pit mining has been underway at Aurora since 2015 using conventional open pit equipment. Work started with company crews using excavators and articulated 35 t to 45 t haul trucks. The mining fleet has been converted to 40 t fixed frame haul trucks. In 2018 the company crews were supplemented by contractors and the plan for the future may include all contracted open pit mining. The contractor operations will include pit and dump operations, pit dewatering, and road maintenance. Both, owner equipment and contractor fleet are operated by contractor’s personnel.

OPEN PIT DESIGN
Open pit mine design criteria are based on a conventional surface mine operation using 5 m3 backhoe excavators supported by 6 m3 wheel loader for ore and waste loading; and haulage by a mixed fleet of 35 t to 45 t capacity trucks.

The selected composite pit optimization shell was utilized to guide the pit design. The haul ramps are designed for the largest hauling equipment using the road. For two-way traffic the minimum overall ramp width, including shoulder berm and ditch, is 17 m. For the last four benches of the ramp in the pit bottom, the haul road is narrowed to a width of 12 m, suitable for single lane traffic. The maximum ramp gradient is 10%.

The design premise was to mine the pits to a minimum mining width of 30 m, then use a backhoe for the final ........


Crushing and Grinding
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- subscription is required.


Processing

Flow Sheet: Subscription required

Summary:

- subscription is required.


Production:

CommodityUnits202220212019201820172016
Gold koz  ......  Subscription required ^  ......  Subscription required  ......  Subscription required150160152
All production numbers are expressed as metal in doré. ^ Guidance / Forecast.
Subscription required - Subscription is required.

Operational Metrics:

Metrics202120202019201820172016
Annual production capacity  ......  Subscription required  ......  Subscription required
Daily processing capacity  ......  Subscription required  ......  Subscription required7,500 t
Total tonnes mined  ......  Subscription required  ......  Subscription required19,180 kt18,706 kt12,443 kt8,208 kt
Ore tonnes mined  ......  Subscription required  ......  Subscription required2,036 kt2,464 kt2,413 kt2,507 kt
Waste  ......  Subscription required  ......  Subscription required17,144 kt16,242 kt10,030 kt5,701 kt
Stripping / waste ratio  ......  Subscription required  ......  Subscription required8.5 6.6 4.2 2.3
Daily mining rate  ......  Subscription required  ......  Subscription required52,500 t51,200 t34,100 t22,400 t
Tonnes processed  ......  Subscription required  ......  Subscription required2,663 kt2,555 kt2,239 kt1,889 kt
Daily processing rate  ......  Subscription required  ......  Subscription required7,300 t7,000 t6,100 t5,200 t
Subscription required - Subscription is required.

Reserves at December 31, 2021:
Cut-off grades: Oxide ore in open-pit mining: 0.46g/t; Primary ore: 0.63g/t; Main orebody: 1.03g/t; Others: 1.52g/t.

CategoryTonnage CommodityGradeContained Metal
Proven & Probable t Gold 2.36 g/t 86.5 t
Measured & Indicated t Gold 127.07 t
Inferred t Gold 63.61 t
Total Resource t Gold 2.53 g/t 190.68 t

Commodity Production Costs:

CommodityUnits2019201820172016
Cash costs (sold) Gold USD  ......  Subscription required 712 / oz   556 / oz   496 / oz  
Total cash costs (sold) Gold USD  ......  Subscription required 812 / oz   656 / oz   595 / oz  
All-in sustaining costs (sold) Gold USD  ......  Subscription required 1,097 / oz   846 / oz   738 / oz  

Financials:

Units20212019201820172016
Sustaining costs M USD  ......  Subscription required 32   15.6   12.4  
Revenue M USD  ......  Subscription required 187.9   199.5   194.2  
Operating Income M  ......  Subscription required 36.6  USD 58.2  USD 71.1  USD
Pre-tax Income M  ......  Subscription required 11.7  USD 39.4  USD 44.5  USD
After-tax Income M  ......  Subscription required  ......  Subscription required 5.4  USD 27  USD 27  USD
Operating Cash Flow M  ......  Subscription required 55.2  USD 66.5  USD 85.7  USD
Subscription required - Subscription is required


Pipelines
Source: Subscription required


Heavy Mobile Equipment:
HME TypeModelSizeQuantityLeased or
Contractor
Ref. Date
ANFO Loader ....................... Subscription required Mar 31, 2020
Bolter ....................... Subscription required ....................... Subscription required Leased Mar 31, 2020
Dozer (crawler) ....................... Subscription required ....................... Subscription required Mar 21, 2020
Dozer (crawler) ....................... Subscription required ....................... Subscription required Mar 21, 2020
Dozer (crawler) ....................... Subscription required ....................... Subscription required Mar 31, 2020
Dozer (crawler) ....................... Subscription required ....................... Subscription required Leased Mar 31, 2020
Dozer (rubber tire) ....................... Subscription required ....................... Subscription required Mar 31, 2020
Drill ....................... Subscription required ....................... Subscription required Mar 31, 2020
Drill ....................... Subscription required ....................... Subscription required Mar 31, 2020
Drill ....................... Subscription required ....................... Subscription required Mar 31, 2020
Excavator ....................... Subscription required ....................... Subscription required Mar 31, 2020
Excavator ....................... Subscription required ....................... Subscription required Mar 31, 2020
Excavator ....................... Subscription required ....................... Subscription required Mar 31, 2020
Excavator ....................... Subscription required ....................... Subscription required Mar 31, 2020
Excavator ....................... Subscription required ....................... Subscription required Mar 21, 2020
Excavator ....................... Subscription required ....................... Subscription required Mar 31, 2020
Excavator 5.5 cu. m ....................... Subscription required Leased Mar 31, 2020
Excavator ....................... Subscription required ....................... Subscription required Leased Mar 31, 2020
Grader ....................... Subscription required ....................... Subscription required Leased Mar 31, 2020
Grader ....................... Subscription required ....................... Subscription required Mar 31, 2020
Jumbo ....................... Subscription required ....................... Subscription required Mar 31, 2020
Loader ....................... Subscription required ....................... Subscription required Mar 31, 2020
Loader ....................... Subscription required ....................... Subscription required Mar 31, 2020
Loader ....................... Subscription required ....................... Subscription required Mar 31, 2020
Loader ....................... Subscription required ....................... Subscription required Mar 21, 2020
Loader ....................... Subscription required ....................... Subscription required Mar 21, 2020
Loader ....................... Subscription required ....................... Subscription required Mar 31, 2020
Loader ....................... Subscription required ....................... Subscription required Leased Mar 31, 2020
Loader ....................... Subscription required ....................... Subscription required Leased Mar 31, 2020
Loader ....................... Subscription required ....................... Subscription required Mar 31, 2020
Loader (FEL) ....................... Subscription required ....................... Subscription required Leased Mar 31, 2020
Scissor Lift ....................... Subscription required ....................... Subscription required Mar 31, 2020
Scissor Lift ....................... Subscription required ....................... Subscription required Leased Mar 31, 2020
Truck (boom) ....................... Subscription required Leased Mar 31, 2020
Truck (dump) ....................... Subscription required ....................... Subscription required Mar 31, 2020
Truck (haul) ....................... Subscription required ....................... Subscription required Mar 31, 2020
Truck (haul) ....................... Subscription required Leased Mar 31, 2020
Truck (haul) ....................... Subscription required ....................... Subscription required Leased Mar 31, 2020
Truck (haul) ....................... Subscription required ....................... Subscription required Leased Mar 31, 2020
Truck (haul) ....................... Subscription required ....................... Subscription required Leased Mar 31, 2020
Truck (haul) ....................... Subscription required ....................... Subscription required Leased Mar 31, 2020
Truck (water) ....................... Subscription required ....................... Subscription required Mar 31, 2020
Truck (water) ....................... Subscription required ....................... Subscription required Leased Mar 31, 2020
Subscription required - Subscription is required.

Mine Management:

Job TitleNameProfileRef. Date
....................... Subscription required ....................... Subscription required Subscription required Mar 31, 2020
....................... Subscription required ....................... Subscription required Subscription required Jul 18, 2022
....................... Subscription required ....................... Subscription required Subscription required Jul 18, 2022
....................... Subscription required ....................... Subscription required Subscription required Jul 18, 2022
Subscription required - Subscription is required.

Staff:

EmployeesYear
Subscription required 2020

Corporate Filings & Presentations:

DocumentYear
Press Release 2022
................................... Subscription required 2021
................................... Subscription required 2020
................................... Subscription required 2020
................................... Subscription required 2019
................................... Subscription required 2019
................................... Subscription required 2019
................................... Subscription required 2019
Corporate Presentation 2018
Management Discussion & Analysis 2018
Press Release 2018
Press Release 2018
Corporate Presentation 2017
Corporate Presentation 2017
Financial Review 2017
Management Discussion & Analysis 2017
Feasibility Study Report 2016
Management Discussion & Analysis 2016
Subscription required - Subscription is required.

Subscription required - Subscription is required.

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