Vanchai Tosomboon

Chip Mong Insee Cement Corp. manufactures cement. The private company is based in Phnom Penh, Cambodia.

Siam City Cement Lanka Ltd. manufactures cement. The private company is based in Colombo, Sri Lanka and has subsidiaries in Sri Lanka.

Part of Siam City Cement Public Co., Ltd., Siam City Cement (Vietnam) Ltd. is a Vietnamese company that provides cement manufacturing services. The company is based in Ho Chi Minh City, Vietnam.

Part of Siam City Cement Public Co., Ltd., Conwood Co., Ltd. offers Conwood Innovation products for interior and exterior home decorating ideas. The company is based in Bangkok, Thailand. The Thai company's products are designed to meet all ideas for a more decorative timber and offer a fully equipped home. Conwood Co. was acquired by Siam City Cement Public Co., Ltd. on March 05, 2002.

Royal Porcelain Public Co. Ltd. engages in the manufacture and distribution of ceramic tableware. The company was founded in 1983 and is headquartered in Bangkok, Thailand.

Karat Faucet Co. Ltd. engages in bathroom plumbing fixtures production and distribution. The firm offers basin cold water faucet, accessory and fittings, rain shower set, flush value and mirrors. The company was founded in 1987 and is headquartered in Bangkok, Thailand.