JAKARTA, Aug 27 (Reuters) - Copper miner PT Freeport

Indonesia expects to complete in early Septmber repair work at

its joint-venture smelter in East Java, a company spokesperson

said on Wednesday.

Repairs at an oxygen plant delayed startup of the Gresik

smelter, a joint venture between Freeport Indonesia and Japan's

Mitsubishi Materials Corp, which has been under maintenance in

the past month, the company said.

"Repairs of the oxygen plant at PT Smelting are scheduled

for completion in early September 2025," the spokesperson, Katri

Krisnati, said, without elaborating.

The plant, which takes about 40% of Freeport's copper

concentrate output from its Grasberg mine, has annual output

capacity of 342,000 metric tons of copper cathode.

Freeport resumed operation at its other copper smelter in

Manyar in May, starting copper cathode production there in July.

In mid-2023, Indonesia launched a ban on exports of copper

concentrate and other raw minerals, but Freeport received a

permit to continue shipments until September 16.

By mid-August, it had exported about 65% of its concentrate

quota of 1.27 million tons.