SEOUL, July 17 (UPI) -- South Korean chemical giant OCI Holdings said Thursday that its subsidiary OCI TerraSus and Japan's Tokuyama would invest $435 million to build a semiconductor-grade polysilicon factory in Malaysia. To that end, the two East Asian corporations set up a joint venture, named OCI Tokuyama Semiconductor Materials, or OSTM, which broke ground on a 32.7-acre site in Sarawak, East Malaysia, on Wednesday. Commercial operation is scheduled to start in 2029 with an annual capacity