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Indonesia

Tujuh Bukit Copper Project

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Tujuh Bukit Copper Project

Location: 55 km SW from Banyuwangi, Indonesia

Project Contacts:

92GQ+497, Perhutani, Sumberagung, Kec. Pesanggaran, Kabupaten Banyuwangi, Jawa Timur
Indonesia
68488

Contacts:

Additional Resources for Suppliers & Investors

Categories

Summary

Mine TypeUnderground
Study CompletedPrefeasibility
Commodities
  • Copper
  • Gold
  • Silver
Mining Method
  • Sub-level caving
  • Block caving
Mine Life... Lock
SnapshotTujuh Bukit(TB) Copper, located beneath Merdeka’s operating Tujuh Bukit gold mine, is regarded as one of the world’s largest pre-production copper projects.

Merdeka is continuing to improve the Tujuh Bukit copper project economics following pre-feasibility study completion in May 2023. The optimisation studies are assessing the potential to improve cashflow generation in the initial sub-level cave (“SLC”) operation (e.g. higher ore throughput, the potential to mine open pit copper-gold sulphide resources, improving mining development rate, reduced upfront capex, improving metallurgical recoveries), which significantly de-risks overall project development.

The increase in indicated resources has created the opportunity to design a correspondingly larger mining reserve in Q2 2024. This will likely result in the extension of mine footprints in both the SLC and block cave mines. This work will likely enhance the project mine life and economics when completed.

Owners

SourceSource
CompanyInterestOwnership
PT Merdeka Copper Gold Tbk 100 % Indirect
The Tujuh Bukit Copper Project, wholly owned by PT Bumi Suksesindo (a wholly owned subsidiary of Merdeka), holds the mine production operation permit (“IUP”) covering an area of 4,998 hectares.

Contractors

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SourceSource

Deposit type

  • Porphyry

Summary:

TB Copper is a large-scale, copper-gold porphyry deposit.

Reserves

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Mining Methods

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Heavy Mobile Equipment

Fleet data has not been reported.

Comminution

Crushers and Mills

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Processing

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Commodity Production

Annual parameters are reported for Fase 3 of Concentrator Expansion and Block Cave mining.
CommodityUnitsAvg. AnnualLOM
Copper M lbs 2473,968
Gold koz 2674,100
All production numbers are expressed as metal in concentrate.

Operational metrics

Metrics
Annual ore mining capacity  ....  Subscribe
Annual processing capacity  ....  Subscribe
Ore tonnes mined, LOM  ....  Subscribe
* According to 2023 study.

Production Costs

CommodityUnitsAverage
All-in sustaining costs (AISC) Copper USD  ....  Subscribe
Assumed price Copper USD  ....  Subscribe
Assumed price Gold USD  ....  Subscribe
* According to 2023 study / presentation.
** Net of By-Product.

Project Costs

MetricsUnitsLOM Total
Pre-Production capital costs $M USD  ......  Subscribe
Expansion CapEx $M USD  ......  Subscribe
Gross revenue (LOM) $M USD  ......  Subscribe
EBITDA (LOM) $M USD  ......  Subscribe
Pre-tax Cash Flow (LOM) $M USD  ......  Subscribe
After-tax Cash Flow (LOM) $M USD  ......  Subscribe
After-tax NPV @ 7% $M USD  ......  Subscribe
After-tax IRR, % $M USD  ......  Subscribe

Personnel

Mine Management

Job TitleNameProfileRef. Date
....................... Subscription required ....................... Subscription required Subscription required Jul 26, 2024
....................... Subscription required ....................... Subscription required Subscription required Jul 26, 2024

Workforce

Aerial view:

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