Mining Intelligence and News
Indonesia

Grasberg Mine

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Grasberg Mine

Location: 60 km NE from Timika, Indonesia

Regional Office:

Plaza 89, Lt. 5 Jl. HR. Rasuna Said Kav. X-7 No. 6
Jakarta
Indonesia
12940

Contacts:

Additional Resources for Suppliers & Investors

Categories

Summary

Mine TypeOpen Pit
StatusClosing / Closed
Commodities
  • Copper
  • Gold
  • Silver
Mining Method
  • Truck & Shovel / Loader
Production Start... Lock
SnapshotThe Grasberg open pit mine was a part of Grasberg minerals district.

PT-FI began open-pit mining of the Grasberg ore body in 1990 and the final phase was mined during 2019. In aggregate, the Grasberg open pit produced over 27 billion pounds of copper and 46 million ounces of gold in the 30-year period from 1990 through 2019.

Now Grasberg open pit is depleted.

Owners

SourceSource
CompanyInterestOwnership
Freeport-McMoRan Inc. 48.76 % Indirect
PT Indonesia Asahan Aluminium (Persero) 51.24 % Indirect
PT Freeport Indonesia (PT-FI) is a limited liability company organized under the laws of the Republic of Indonesia. PT-FI operates the mines in the Grasberg minerals district.

Freeport-McMoRan have a 48.76 percent share ownership in PT-FI and the remaining 51.24 percent share ownership is held by PT Indonesia Asahan Aluminium (an Indonesian state-owned enterprise).

SourceSource

Deposit type

  • Vein / narrow vein
  • Breccia pipe / Stockwork

Summary:

The igneous-hosted ore bodies (the Grasberg open pit and block cave, and portions of the DOZ block cave) occur as vein stockworks and disseminations of copper sulfides, dominated by chalcopyrite and, to a lesser extent, bornite.

Reserves

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Mining Methods

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Heavy Mobile Equipment

Fleet data has not been reported.

Comminution

Crushers and Mills

Milling equipment has not been reported.

Processing

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Commodity Production

Combined production numbers are reported under Grasberg Complex

Operational metrics

Metrics202020192018201720162015
Daily milling rate  ....  Subscribe60,100 t133,300 t101,800 t119,700 t115,900 t
Daily mining capacity  ....  Subscribe275,000 t
Ore tonnes mined  ....  Subscribe49 Mt37 Mt44 Mt42 Mt
Daily mining rate  ....  Subscribe180,500 t250,400 t

Production Costs

Commodity production costs have not been reported.

Personnel

Mine Management

Job TitleNameProfileRef. Date
....................... Subscription required ....................... Subscription required Subscription required Feb 24, 2025

Workforce

Aerial view:

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