Ok Tedi Mining Limited (OTML) mines and concentrates 600 000 tonnes of copper concentrate annually in the Star Mountains of the Western Province of Papua New Guinea. Full descriptions of the mine and concentrator were presented by Stapelton and England (1993). The Ok Tedi deposit consists of a number of different
The OK Tedi Mine is an open cut copper and gold operation in Papua New Guinea, in production since 1984. The mine is located in Papua New Guinea, close to the headwaters of the OK Tedi River. Gold and silver minerals at the deposit primarily include chalcopyrite.
8 OK TEDI MINING LIMITED Over the last two years the Company has also focused on refreshing the long term business strategy to maximise the value of the mineral resource. This has resulted in a substantial value uplift that will ultimately be to the benefit of all stakeholders. There is a body of work in progress to add further
Ore is mined and processed at an onsite flotation processing plant capable of treating up to 24 million tonnes per annum (Mtpa). The plant currently recovers copper, gold and silver into a
GRAHAM: The mine is performing strongly and recently achieved a record Total Material Moved of 9.8 million tonnes in a month. Ok Tedi is currently replacing the In Pit Crusher at a cost of some US$230 million (K782.3).
On average, the mine produces ore at a rate of 80,000 tonnes per day and waste rock at a rate of 152,000 tonnes per day. During the first four years of production, the Ok Tedi mine consisted of a closed circuit cyanide leach and carboninpulp recovery system to extract the gold from the leached cap.
The United Nations Environment Programme has noted that the Ok Tedi mine site's "uncontrolled discharge of 70 million tonnes of waste rock and mine tailings annually has spread more than 10 km (6.2 mi) down the Ok Tedi and Fly rivers, raising river beds and causing flooding, sediment deposition, forest damage, and a serious decline in the area's biodiversity."
With 1720 million tonnes of heavy mineral bearing sands dredged each year, it is anticipated that at least 10 years of further dredging is yet to be completed. The engineered stockpiles on the East and West bank of the Ok Tedi River covering 1,000 hectares store waste from the last 20 years.
The Ok Tedi mine is an opencut copper, gold and silver mine located at Mt. Fubilan in the Western Province of Papua New Guinea. Approximately 240 thousand tonnes of overburden (waste rock) is mined each day from a pit covering about 2.6 square kilometres.
In the upper catchment of the Fly River in Papua New Guinea (PNG)s Western Province lies the country's biggest moneymaker: the Ok Tedi copper and gold mine. Churning out some 80,000 tonnes of waste rock per day, Ok Tedi also has another distinction: probably the most polluting asset in