KUALA LUMPUR (Nov 11): Petroleum Sarawak Bhd has agreed to supply natural gas to a South Korean polysilicon manufacturer in Bintulu, Sarawak.
The gas will support boiler operations and steam generation at OCI TerraSus’ plant in Samalaju Industrial Park, according to a Wednesday statement. The access will also diversify its energy sources, strengthen operational resilience, and improve cost efficiency, OCI TerraSus said.
“This will support the company’s long-term operational sustainability,” the company, a wholly owned subsidiary of South Korea's OCI Holdings, said in the statement.
OCI TerraSus produces the so-called high-purity solar-grade polysilicon, an essential raw material used in the manufacture of silicon wafers and photovoltaic cells for solar panels.
As an anchor investor in the 8,000-hectare industrial park, OCI TerraSus produces 35,000 tonnes of polysilicon annually and is set to become the first industrial customer in Samalaju Industrial Park to receive natural gas from Petroleum Sarawak, the state-owned company also known as PETROS.
OCI Holdings also has a 50:50 joint venture with Japan's Tokuyama Corporation, which broke ground in July 2025 on a RM2 billion plant to produce semiconductor-grade polysilicon in 2029.
In 2024, the firm had also launched its joint venture with Kumho P&B Chemicals, also from South Korea, to produce epichlorohydrin used mainly to produce epoxy resins and in water treatment and rubber manufacturing.