PT ANTAM Tbk
PT Aneka Tambang Tbk (ANTAM) has three business segments, nickel, gold and bauxite. In the nickel segment, ANTAM manages the ferronickel smelter at Pomalaa, Southeast Sulawesi, which has a capacity of 27,000 tons of nickel in ferronickel (TNi) per year.
In the gold segment, ANTAM has a precious metal processing and refinery plant which is the only gold refinery plant in Indonesia, accredited by the Good Delivery List of Refiners of the London Bullion Market Association (LBMA).
For the bauxite segment, ANTAM currently has the only alumina grade chemical refinery in Indonesia.
MIND ID has a 65% stake in PT Aneka Tambang Tbk.
PT Bukit Asam Tbk
PT Bukit Asam Tbk has several business segments, namely coal mining, investment, mining services, steam power plant, and is currently developing the downstream sector of its coal segment.
Coal is the primary operating segment of the company and contributes the most to the company’s revenue. Per 31 December 2018, total coal reserves came to 3.25 billion tons with total coal resources amounting to 8.17 billion tons. MIND ID has a 65.93% stake in PT Bukit Asam Tbk.
PT Freeport Indonesia
PT Freeport Indonesia is engaged in the field of exploration, mining and processing of copper, gold and silver in Papua.
The mines of PT Freeport Indonesia in the mineral region of Grasberg, Papua, is one of the biggest copper and gold reserves in the world.
MIND ID has a 51.2% stake in PT Freeport Indonesia.
PT Indonesia Asahan Aluminium (Persero)
PT Indonesia Asahan Aluminium (Persero) or Inalum, is the sole producer of aluminum ingots in Indonesia.
With a production capacity of up to 250,000 tons per year, Inalum’s business scope also includes alumina production, a coke calcination plant and its derivatives, as well as the marketing, distribution and sales of these products and similar products in Indonesia.
Inalum also took part in constructing and operating an independent power plant.
The Indonesian government, through MIND ID, has full ownership of Inalum.
PT Timah Tbk
PT Timah Tbk has integrated its upstream to downstream operations, from explorations, mining, processing, refining to marketing. Aside from alluvial tin mining, PT Timah’s operations also cover primary tin mining.
Currently, PT Timah is developing its newest technology in the processing and refining of low grade minerals by using the ausmelt furnace technology and developing the technology to process rare earth elements, which have strategic and high economic value.
Aside from its domestic operations, PT Timah Tbk is also conducting exploration activities in Myanmar and Nigeria.
MIND ID has a 65% stake in PT Timah Tbk.