Somkoun Sriwattagaphong

Part of PT Chandra Asri Pacific Tbk, PT Styrindo Mono Indonesia is an Indonesian company that manufactures and sells styrene monomer products. The company is based in Jakarta, Indonesia. PT Styrindo Mono Indonesia was acquired by PT Chandra Asri from Toyota Tsusho Corp. on March 28, 2007 for $95 million.

Part of The Siam Cement Public Co. Ltd., Rayong Olefins Co. Ltd. is a company that manufactures olefin products. The company is based in Rayong, Thailand.

Map Ta Phut Olefins Co. Ltd. produces ethylene and propylene. The joint venture company is based in Bangkok, Thailand.

SCG Chemicals Co. Ltd. engages in the manufacture and distribution of chemical products. It offers polyethylene, polypropylene, and polyvinyl chloride products. Its services include design solutions and financial services. Its products are used in additives and lubricant, agriculture, automotive, building and infrastructure, packaging, medical and healthcare products. The company was founded in April 1995 and is headquartered in Bangkok, Thailand.

Part of The Siam Cement Public Co. Ltd., Rayong Olefins Co. Ltd. is a company that manufactures olefin products. The company is based in Rayong, Thailand.