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Indonesia
Tujuh Bukit Gold Mine

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 Location:
55 km SW from Banyuwangi, Indonesia
  Address:
92GQ+497, Perhutani, Sumberagung, Kec. Pesanggaran, Kabupaten Banyuwangi, Jawa Timur
Indonesia
68488
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Fax+62-21-39525589
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WebsiteWeb
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  • Overview
  • Owners
  • Geology
  • Mining
  • Processing
  • Production
  • Reserves
  • Costs & Financials
  • Personnel
  • Filings & News
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Overview

StageProduction
Mine TypeOpen Pit
Commodities
  • Gold
  • Silver
Mining Method
  • Truck & Shovel / Loader
Production Start...
Mine Life2027
Tujuh Bukit Gold Mine is one of the largest primary gold mine in Indonesia.

Tujuh Bukit Copper Project is located beneath the existing Tujuh Bukit Gold Mine. Merdeka released a project update in the form of a Scoping Study. The Scoping Study envisages a large-scale underground block cave mine with a peak mill feed of 24Mtpa, which is estimated to produce 2.9Mt of copper and 10.1Moz of gold over a mine life of 40 years. The PFS is expected to be completed in March 2023.

Merdeka is aiming to complete the environmental permitting by September 2023, with the start of development to commence in early 2024.

Owners

Source: p. 64,101
CompanyInterestOwnership
PT Merdeka Copper Gold Tbk 100 % Indirect
PT Bumi Suksesindo (operator) 100 % Direct
PT Merdeka Copper Gold Tbk (“Merdeka”), a holding company with operating subsidiaries engaging in mining business activities. The subsidiaries are (i) PT Bumi Suksesindo (“BSI”) as the holder of the operation production mining business license for the Tujuh Bukit mine, (ii) PT Damai Suksesindo (“DSI”) which holds the adjacent exploration permit, (iii) PT Batutua Tembaga Raya (“BTR”) as the holder of operation production mining business license specifically for processing and refining.

Contractors

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Deposit Type

  • Epithermal

Summary:

The Tujuh Bukit Oxide deposits are classified as High Sulphidation Epithermal (HSE) type containing economic accumulations of gold and silver.

Mining Methods

  • Truck & Shovel / Loader

Summary:

Tujuh Bukit Gold is a gold and silver mine located in Banyuwangi Regency, East Java Province and employ conventional truck and shovel mining method.

Crushing and Grinding
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Processing

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Summary:

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Production:

CommodityUnits2023202220212020201920182017
Gold oz  ......  Subscription required ^  ......  Subscription required  ......  Subscription required  ......  Subscription required  ......  Subscription required167,506141,468
Silver oz  ......  Subscription required  ......  Subscription required
All production numbers are expressed as metal in doré. ^ Guidance / Forecast.
Subscription required - Subscription is required.

Operational Metrics:

Metrics202220212020201920182017
Ore tonnes mined  ......  Subscription required  ......  Subscription required6.7 Mt7.4 Mt5.3 Mt3.3 Mt
Waste  ......  Subscription required  ......  Subscription required5.7 Mt8.4 Mt9.4 Mt4.1 Mt
Total tonnes mined  ......  Subscription required  ......  Subscription required12.4 Mt
Tonnes processed  ......  Subscription required  ......  Subscription required5.8 Mt7.4 Mt4.9 Mt3.2 Mt
Daily processing capacity  ......  Subscription required  ......  Subscription required22,500 t22,500 t
Annual processing capacity  ......  Subscription required  ......  Subscription required8.2 Mt8.2 Mt4 Mt4 Mt
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Reserves at December 31, 2022:
Tujuh Bukit Gold Mine Mineral Resource Cut-off 0.1 g/t gold.

Tujuh Bukit Gold Mine Ore Reserve Cut-off 0.2 g/t gold.

CategoryTonnage CommodityGradeContained Metal
Proven 2 Mt Gold 0.34 g/t
Proven 2 Mt Silver 8.89 g/t
Probable 29 Mt Gold 0.62 g/t
Probable 29 Mt Silver 29.78 g/t
Proven & Probable 31 Mt Gold 0.6 g/t 600 koz
Proven & Probable 31 Mt Silver 28.41 g/t 28,266 koz
Measured 2 Mt Gold 0.34 g/t
Measured 2 Mt Silver 9 g/t
Indicated 69.1 Mt Gold 0.44 g/t
Indicated 69.1 Mt Silver 26 g/t
Inferred 2.7 Mt Gold 0.3 g/t
Inferred 2.7 Mt Silver 20 g/t
Total Resource 73.8 Mt Gold 0.43 g/t 1,020 koz
Total Resource 73.8 Mt Silver 25 g/t 59.6 M oz

Commodity Production Costs:

CommodityUnits2023202220212020201920182017
Cash costs Gold USD  ......  Subscription required  ......  Subscription required  ......  Subscription required  ......  Subscription required 374 / oz†   297 / oz†  
All-in sustaining costs (AISC) Gold USD  ......  Subscription required  ......  Subscription required  ......  Subscription required  ......  Subscription required  ......  Subscription required 596 / oz†   425 / oz†  
^ Guidance / Forecast.
† Net of By-Product.
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Financials:

Units202220212020201920182017
Revenue M USD  ......  Subscription required  ......  Subscription required  ......  Subscription required  ......  Subscription required 235   133  
EBITDA M USD  ......  Subscription required  ......  Subscription required  ......  Subscription required 155   100  
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Water Supply
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Heavy Mobile Equipment:

Mine Management:

Job TitleNameProfileRef. Date
....................... Subscription required ....................... Subscription required Subscription required Sep 14, 2023
....................... Subscription required ....................... Subscription required Subscription required Sep 14, 2023
....................... Subscription required ....................... Subscription required Subscription required Sep 14, 2023
....................... Subscription required ....................... Subscription required Subscription required Sep 14, 2023
....................... Subscription required ....................... Subscription required Subscription required Sep 14, 2023
....................... Subscription required ....................... Subscription required Subscription required Sep 14, 2023
....................... Subscription required ....................... Subscription required Subscription required Sep 14, 2023
....................... Subscription required ....................... Subscription required Subscription required Sep 14, 2023
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Staff:

Total WorkforceYear
Subscription required 2022
Subscription required 2021
Subscription required 2020
Subscription required 2019

Corporate Filings & Presentations:

DocumentYear
Annual Report 2022
Corporate Presentation 2022
Quarterly Report 2022
Year-end Mineral Reserves 2022
................................... Subscription required 2021
................................... Subscription required 2021
................................... Subscription required 2021
................................... Subscription required 2021
................................... Subscription required 2020
................................... Subscription required 2020
................................... Subscription required 2020
................................... Subscription required 2019
................................... Subscription required 2019
Quarterly Report 2018
Project Description 2016
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