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Establishment of OCI Tokuyama Semiconductor Materials Sdn. Bhd.

OCI TerraSus Sdn. Bhd. is pleased to announce the establishment of OCI Tokuyama Semiconductor Materials Sdn. Bhd. (“OTSM”). OTSM is a joint venture company with Tokuyama Corporation of Japan, for the production and sale of semiconductor-grade polycrystalline silicon ("polysilicon") semi-finished products. The establishment was completed as of 8 July 2025.

This establishment will be followed by a groundbreaking ceremony for the OTSM semiconductor-grade polysilicon plant in Samalaju Industrial Park, Bintulu, scheduled for 16 July 2025.

The joint venture aims to strengthen the global semiconductor supply chain while contributing to environmental sustainability through efficient energy use and lower carbon intensity in production.