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Indonesia
Way Linggo Operation (Talang Santo Mine, Way Linggo Mine)

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 Location:
96 km W from Bandar Lampung, Indonesia

  Address:
Hutan Way Linggo
Bandar Negeri Semuong, Tanggamus Regency, Lampung
Indonesia
35686
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  • Overview
  • Owners
  • Geology
  • Mining
  • Processing
  • Production
  • Reserves
  • Costs & Financials
  • Personnel
  • Filings & News

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Overview

StatusCare and Maintenance
Mine TypeOpen Pit
Commodities
  • Gold
  • Silver
Mining Method
  • Truck & Shovel / Loader
Production Start...
The Way Linggo project includes the Way Linggo mine and Talang Santo mine.

With the completion of mining in April 2020, processing of stockpiles and mineralised waste occurred during the period concluding in September 2020, with the final gold sale occurring in November 2020. Subsequently, the processing plant was decommissioned, and the mine site placed on care and maintenance.

The Company entered into a process deed for the potential acquisition of the Way Linggo project by a third party as announced to the ASX on 1 July 2022.


Owners

Source: p. 1
CompanyInterestOwnership
PT Perisai Mulia Nusantara (PTPMN) 15 % Indirect
Kingsrose Mining Ltd. 85 % Indirect
PT Natarang Mining (operator) 100 % Direct
Ownership Tree
PT Natarang Mining (PTNM), owner and operator of the Way Linggo Project. PTNM is 85% owned by Kingsrose Mining Limited.

Kingsrose Mining Limited (ASX: KRM) (Kingsrose or Company) is pleased to announce that it has entered into a binding, conditional agreement (Sale Agreement) with Capwill Global Limited (Capwill Global) for the sale of the Way Linggo gold project, via the sale of the entire issued capital of wholly owned Natarang Offshore Pty Ltd (NOPL). The Sale Agreement is the realization of the Process Deed dated 1 July 2022 entered into by the Company.

Completion of the Sale Agreement is expected to occur within one month of this announcement.

Contractors

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Deposit Type

  • Epithermal
  • Vein / narrow vein


Summary:

Way Linggo
The Way Linggo deposit is an epithermal gold / silver deposit. Epithermal gold-silver-quartz vein mineralisation has been identified at Way Linggo. Economic mineralisation is predominantly restricted to the major vein structures, with the majority of gold and silver contained in main-stage banded quartz veins and quartz vein breccia.

Way Linggo located on western margin of older Miocene volcanic rocks (Tomh) surrounded by younger tuffaceous rocks (Qhv). A prominent pull-apart basin occurs to the west of Way Linggo.

Intrusions are localized by the intersection of NW-, NE- and N-trending lineaments and pre-date the emplacement of the epithermal veins in both areas.

Clay-pyrite (argillic) alteration (yellow), pervasive silicification (pink) and quartz veins (red) coincide with NW- and N-trends (argillic alteration, silicification and quartz veins) and NE-trends(silicification) locally. The vein systems and related hydrothermal alteration are localized in zones of lineament intersection and nearby dacite intrusions.

The vein systems and related hydrothermal alteration are localized in zones of lineament intersection and nearby dacite intrusions. Both prospects are inferred to lie in the same 3 km by 1.5 km hydrothermal cell that is defined by NW- and N-trending fault- and fracture-zones.

The surface quartz veins south of the Semung river predominantly strike NW and dip moderately to steeply towardsthe NE. In c ........


Mining Methods

  • Truck & Shovel / Loader


Summary:

Way Linggo mine.
Mineral Resource is mineable using conventional open cut and/or narrow vein underground mining techniques. In fact, an open cut operation is currently operating on the Mineral Resource, and narrow vein underground mining (hand-held stoping methods) occurred up until September 2013.

Talang Santo mine.
Production of gold and silver commenced from the Talang Santo underground mine in July 2014 (sub-level stoping and room-and-pillar mining methods).

In November 2018, Talang Santo open pit has started. The Talang Santo open pit is similar to the Way Linggo open pit in that the mine will be located on the previously mined underground ore body. The open pit will extract upper levels of the remnant ore pillars and areas of the mine that were left behind, due to the mining method employed in the underground mine. It is estimated that there is 50% of the orebody remaining in the area which will be the subject of the open pit.

Mining operations have been placed on care and maintenance while further exploration is conducted.


Crushing and Grinding


Processing

Flow Sheet: Subscription required

Summary:

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Production:

CommodityUnits202120202019201820172016
Gold oz  ......  Subscription required  ......  Subscription required  ......  Subscription required23,59412,86218,642
Silver oz  ......  Subscription required  ......  Subscription required  ......  Subscription required  ......  Subscription required  ......  Subscription required  ......  Subscription required
All production numbers are expressed as metal in doré.
Subscription required - Subscription is required.

Operational Metrics:

Metrics202120202019201820172016
Tonnes milled  ......  Subscription required  ......  Subscription required79,335 t95,405 t56,733 t67,387 t
Ore tonnes mined  ......  Subscription required  ......  Subscription required79,643 t94,070 t54,442 t65,882 t
Waste  ......  Subscription required  ......  Subscription required2,219,479 bcm
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Reserves at June 30, 2021:
Talang Santo: Cut-off grade 2.0 g/t Au.
Way Linggo (Date 6/30/2018): Within the UPD a cutoff grade of 0.5 g/t Au was used.
External to the UPD a cutoff grade of 2.5 g/t Au was used.

The Mineral Resources as at 30 June 2022 at Way Linggo operation are unchanged from 30 June 2021.

CategoryTonnage CommodityGradeContained Metal
Indicated 392 kt Gold 6.27 g/t 79 koz
Indicated 392 kt Silver 33.16 g/t 418 koz
Inferred 1,184 kt Gold 5.31 g/t 202 koz
Inferred 1,184 kt Silver 20.67 g/t 787 koz
Total Resource 1,576 kt Gold 5.5 g/t 284 koz
Total Resource 1,576 kt Silver 23.8 g/t 1,205 koz

Commodity Production Costs:

CommodityUnits202120202019201820172016
All-in sustaining costs (AISC) Gold USD  ......  Subscription required†  ......  Subscription required†  ......  Subscription required† 882 / oz†   1,766 / oz†   1,300 / oz†  
C1 cash costs Gold USD  ......  Subscription required†  ......  Subscription required†  ......  Subscription required† 658 / oz†   1,026 / oz†   870 / oz†  
† Net of By-Product.
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Financials:

Units202120202019201820172016
Revenue M USD  ......  Subscription required  ......  Subscription required  ......  Subscription required 44.1   21.3   31.7  
After-tax Income M USD  ......  Subscription required  ......  Subscription required  ......  Subscription required 7.3   -61.2   -2  
EBIT M USD  ......  Subscription required  ......  Subscription required  ......  Subscription required 8.1   -49.1   -1.7  
EBITDA M USD  ......  Subscription required  ......  Subscription required  ......  Subscription required 11.2   -41.6   5.2  
Operating Cash Flow M USD  ......  Subscription required  ......  Subscription required  ......  Subscription required 9.4   -1.2   2.7  
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Heavy Mobile Equipment:

Mine Management:

Job TitleNameProfileRef. Date
....................... Subscription required ....................... Subscription required Subscription required Oct 24, 2022
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Corporate Filings & Presentations:

DocumentYear
Annual Report 2022
Press Release 2022
................................... Subscription required 2021
................................... Subscription required 2021
................................... Subscription required 2020
................................... Subscription required 2020
................................... Subscription required 2020
................................... Subscription required 2019
................................... Subscription required 2019
................................... Subscription required 2019
................................... Subscription required 2019
Annual Report 2018
Press Release 2018
Quarterly Report 2018
Year-end Mineral Reserves 2018
Annual Report 2017
Press Release 2017
Annual Report 2016
Annual Report 2015
Press Release 2015
Annual Report 2014
Corporate Presentation 2012
Corporate Presentation 2011
Corporate Presentation 2009
Project Description 2009
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