What We Do

The Ok Tedi mine is an open-cut copper, gold and silver mine located at Mt. Fubilan in the Western Province of Papua New Guinea.

Up to 240 thousand tonnes of overburden (waste rock) is mined each day from a pit covering about 2.6 square kilometres. In addition, about 60 thousand tonnes of ore is mined each day and delivered to the mill for processing.

The mine and mill operate 24 hours per day, 365 days per year. We also hold a number of exploration licenses in the Western Province.

Operations Overview

The operations at OTML consist of the following:

  • A single large-scale open-cut mine;
  • A concentrator comprising two Semi-Autogenous Grinding and Ball milling lines followed by conventional flotation circuits to produce a copper-gold concentrate;
  • A Tailings Pyrite Plant (TPP) to separate iron sulphides (pyrites) from the concentrator tailings;
  • A pipeline to transport pyrite concentrate from the TPP to designated burial pits below the water table and within the tailings sand stockpiles at Bige;
  • A pipeline to transport the copper-gold concentrate to the port of Kiunga;
  • Filtration plant concentrate stockpile and barge loading facilities at Kiunga;
  • Hydro-electric power plants at Ok Menga and Yuk Creek which supply the majority of power for the mining and processing operations;
  • A thermal power generation facility in Tabubil that supplements the hydropower plant;
  • Riverine transportation of the sand tailings and much of the waste rock from the Mine into the Ok Tedi river; and
  • A dredging operation in a section of the Ok Tedi River at Bige to remove the sediments and deposit them in engineered stockpiles.

Mining & Processing

An overview of our mining and processing operations.

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Support Operations

Core operation and logistic support operations for OTML.

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Our Exploration and Mineral Resource development operations.