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Australia
King of the Hills (KOTH) Mine

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 Location:
29 km NW from Leonora, Western Australia, Australia

  Address:
Level 2 35 Ventnor Avenue
West Perth
Western Australia, Australia
6005
Phone  ...  Subscription required
WebsiteWeb
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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 & Underground
Commodities
  • Gold
Mining Method
  • Airleg stoping
  • Truck & Shovel / Loader
  • Longhole open stoping
  • Room-and-pillar
Production Start...
Mine Life2037
Red 5 has established the new King of the Hills Processing Hub in 2022, with a large new 4.7Mtpa process plant being fed by open pit and underground mines at King of the Hills, and an underground satellite mine at Darlot.

On 16 December 2022, Red 5 Limited advises that mining and processing operations at the King of the Hills (KOTH) gold mine, have reached steady-state and commercial production has now commenced.
Latest NewsRed 5 Ltd.:Commercial production declared at King of the Hills and production guidance for six months to 30 June 2023     December 16, 2022


Owners

Source: p. 62
CompanyInterestOwnership
Red 5 Ltd. 100 % Indirect
The King of the Hills are 100% held and managed by Greenstone Resources (WA) Pty Limited, a wholly owned subsidiary of Red 5 Limited.

Contractors

Subscription required - Subscription is required.


Deposit Type

  • Vein / narrow vein
  • Breccia pipe / Stockwork


Summary:

The King of the Hills (KOTH) mineralisation is considered to be part of an Archean Orogenic gold deposit with many similar characteristics to other gold deposits within the Eastern Goldfields of the Yilgarn Craton. Gold mineralisation is associated with sheeted and stockwork quartz vein sets within a hosting granodiorite stock and pervasively carbonate altered ultramafic rocks. Mineralisation is thought to have occurred within a brittle/ductile shear zone with the main thrust shear zone forming the primary conduit for the mineralising fluids. Pre-existing quartz veining and brittle fracturing of the granite created a network of second order conduits for mineralising fluids. Brittle fracturing along the granodiorite contact generated radial tension veins, perpendicular to the orientation of the granodiorite, and zones of quartz stockwork. These stockwork zones are seen in both the granodiorite and ultramafic units and contain mineralisation outside the modelled continuous vein system (High Grade Veins). Gold appears as free particles (coarse gold) or associated with traces of base metals sulphides (galena, chalcopyrite, pyrite) intergrown within quartz along late stage fractures. Dimensions The northern section of the mineralised zone (also known as part of the Western Flank) strikes 30 degrees west of true north over a distance of 700m and plunges to the southwest. Individual lodes dip east at 35 to 45 degrees. Eastern Flank mineralisation strikes 30 degrees east of true ........


Mining Methods

  • Airleg stoping
  • Truck & Shovel / Loader
  • Longhole open stoping
  • Room-and-pillar


Summary:

The mining methods for underground is a mix of narrow to large scale open stoping and air leg room and pillar. Minimum height is approximately 3.8m with Jumbo development and 3.0m for air leg development with the resource reported on similar size panels to reflect this relationship.

KOTH is currently an operating underground gold mine, and the KOTH FFS is predicated on the continuation of existing underground mining practices. Mine design parameters are based on current site guidelines, which are well understood and have been successfully implemented.

The proposed primary mining method is long-hole open stoping, with minor amounts of airleg stoping in flat dipping areas of the orebody (<1% of ore tonnes). Stoping will follow a top-down sequence, commencing at the extremities of each level and retreating to the level access. Rib pillars will remain between adjacent stopes to maintain mine stability. The proposed mining methods and sequence are generally a continuation of current operating practices at an increased production rate.

Areas identified for long-hole stoping are categorised as narrow vein or bulk stoping. The narrow vein parameters include a 2.0 m minimum stoping width in combination with a 20 m level spacing, whereas the bulk stoping parameters include a 3.0 m minimum stoping width in combination with a 40 m level spacing.

Cut-off grades were estimated for the different mining methods, and stope shapes were generated usin ........


Crushing and Grinding
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- subscription is required.


Processing

Flow Sheet: Subscription required

Summary:

- subscription is required.


Production:
The KOTH processing facility was commissioned in May 2022, production data for 2022 is represented for two months - May and June 2022.

CommodityUnits202220212020201920182016
Gold koz  ......  Subscription required  ......  Subscription required*  ......  Subscription required*  ......  Subscription required*48*9.1
All production numbers are expressed as metal in doré. * Combined production for Darlot Mine and King of the Hills (KOTH) Mine
Subscription required - Subscription is required.

Operational Metrics:

Metrics202220202019
Tonnes milled  ......  Subscription required
Annual processing capacity  ......  Subscription required
Ore tonnes mined  ......  Subscription required  ......  Subscription required403 kt
Subscription required - Subscription is required.

Reserves at June 30, 2022:
Mineral Resources OP cut-off at 0.4g/t determined based on estimated grade cut-off for large-scale open pit mining with the pit optimisation shell selected based on an A$2,100 gold price. Mineral Resources UG cut-off at 1.0g/t determined based on estimated grade cut-off for large-scale open stoping.

Ore Reserves cut-off grades for: the KOTH OP are 0.4g/t Au, the KOTH UG are 1.3g/t Au, and Regional Resources are 0.4g/t Au.

CategoryTonnage CommodityGradeContained Metal
Proven 2,384 kt Gold 0.8 g/t 62 koz
Probable 67,804 kt Gold 1.2 g/t 2,600 koz
Proven & Probable 70,188 kt Gold 1.2 g/t 2,663 koz
Measured 2,455 kt Gold 0.9 g/t 73 koz
Indicated 80,354 kt Gold 1.4 g/t 3,519 koz
Inferred 22,680 kt Gold 1.6 g/t 1,157 koz
Total Resource 105,489 kt Gold 1.4 g/t 4,748 koz

Commodity Production Costs:

CommodityUnits20162015
Cash costs Gold AUD 893 / oz†   1,112 / oz†  
All-in sustaining costs (AISC) Gold AUD 964 / oz†   1,103 / oz†  
† Net of By-Product.

Financials:

Units2016
Revenue M AUD 14  



Heavy Mobile Equipment:
HME TypeModelSizeQuantityStatusLeased or
Contractor
Ref. Date
Drill (long hole) ....................... Subscription required ....................... Subscription required Proposed Leased Sep 15, 2020
Drill jumbo (two boom) ....................... Subscription required ....................... Subscription required Existing Leased Dec 24, 2022
Excavator 260 t ....................... Subscription required Existing Leased Dec 24, 2022
....................... Subscription required ....................... Subscription required ....................... Subscription required ....................... Subscription required Proposed Leased Feb 3, 2022
Excavator ....................... Subscription required 360 t ....................... Subscription required Existing Leased Feb 3, 2022
....................... Subscription required ....................... Subscription required Proposed Leased Sep 15, 2020
....................... Subscription required ....................... Subscription required ....................... Subscription required Proposed Leased Sep 15, 2020
....................... Subscription required ....................... Subscription required ....................... Subscription required Proposed Leased Feb 3, 2022
Truck (haul) ....................... Subscription required ....................... Subscription required Existing Leased Feb 3, 2022
Truck (haul) ....................... Subscription required ....................... Subscription required Existing Leased Dec 24, 2022
....................... Subscription required ....................... Subscription required ....................... Subscription required Proposed Leased Dec 24, 2022
Subscription required - Subscription is required.

Mine Management:

Job TitleNamePhoneEmailProfileRef. Date
....................... Subscription required ....................... Subscription required Subscription required Dec 23, 2022
....................... Subscription required ....................... Subscription required Subscription required Sep 26, 2022
....................... Subscription required ....................... Subscription required Subscription required Sep 15, 2020
....................... Subscription required ....................... Subscription required Subscription required Sep 15, 2020
....................... Subscription required ....................... Subscription required Subscription required Sep 15, 2020
....................... Subscription required ....................... Subscription required Subscription required Dec 23, 2022
....................... Subscription required ....................... Subscription required Subscription required Sep 26, 2022
....................... Subscription required ....................... Subscription required ....................... Subscription required ....................... Subscription required Subscription required Dec 23, 2022
....................... Subscription required ....................... Subscription required Subscription required Dec 23, 2022
....................... Subscription required ....................... Subscription required Subscription required Sep 26, 2022
....................... Subscription required ....................... Subscription required Subscription required Sep 26, 2022
Subscription required - Subscription is required.

Staff:

Total WorkforceYear
Subscription required 2021
Subscription required 2020
Subscription required 2019
Subscription required 2018
Subscription required 2017

Corporate Filings & Presentations:

DocumentYear
Annual Report 2022
Annual Report 2022
Corporate Presentation 2022
Press Release 2022
Press Release 2022
Press Release 2022
Year-end Mineral Reserves 2022
................................... Subscription required 2021
................................... Subscription required 2021
................................... Subscription required 2021
................................... Subscription required 2020
................................... Subscription required 2020
................................... Subscription required 2020
................................... Subscription required 2019
Annual Report 2018
Year-end Mineral Reserves 2018
Annual Report 2017
Other 2017
Year-end Mineral Reserves 2017
Annual Report 2016
Annual Report 2015
Corporate Presentation 2014
Subscription required - Subscription is required.

News:

NewsDate
Red 5 Ltd.:Commercial production declared at King of the Hills and production guidance for six months to 30 June 2023 December 16, 2022

Subscription required - Subscription is required.

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