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PT Freeport Indonesia (PTFI) informed that the development of the Kucing Liar underground mining project within Grasberg mine in Mimika Regency, Central Papua Province requires capital expenditure (capex) of US$500 million (about Rp8.2 trillion) per year. PTFI President Director Tony Wenas said that the estimated capex is needed for the next 7-8 years, adding that the Kucing Liar mine would be PTFI's fourth in the Grasberg area.
"The Kucing Liar [mine] will replace the Deep Mill Level Zone (DMLZ) mine so that our ore production process can be stable in the future, and expected to be around 240,000 tons of ore per day," said Tony in a House of Representatives Commission VI hearing on Mar. 13, 2025.
The switch to the Kucing Liar mine is because ore production from the DMLZ mine continues to decline. Currently, production reaches 70,000 tons of ore per day. In addition, PTFI also operates the Grasberg Block Cave mine, which produces 140,000 tons of ore per day, and the Big Gossan mine, which produces 7,000 tons of ore per day with the highest grade, in the Grasberg mining area.
To maintain production levels, Tony is targeting for the Kucing Liar mine to start production in 2027. The potential reserves of the mine are 7 billion pounds of copper and 7 million ounces of gold until 2041. The development of Kucing Liar is an effort made after PTFI obtained an extension of its special mining business permit (IUPK) beyond 2041, which was deemed necessary to extend the life of this project.
Meanwhile, the pre-production development phase of Kucing Liar has begun in 2022 and is expected to continue for a period of approximately 10 years. The mine is estimated to be able to produce approximately 90,000 metric tons of ore per day when fully operational, and it is projected to be able to produce 560 million pounds of copper and 520,000 ounces of gold. Hence, the Kucing Liar Mine is expected to provide PTFI with sustainable benefits in the long term and on a large scale.