Winai Phattiyakul

Big C Supercenter Public Co., Ltd. owns and operates hypermarkets and retails goods. It operates through the Hypermarket and Small Store business segments. The Hypermarket segment comprises large stores operated under Big C Supercenter, Big C Extra, and Big C Jumbo trade names. The Small Store segment consists of supermarkets operated under the name Big C Markets, community shops operated under the name Mini Big C, and drugstores operated under the name Pure. The company was founded in 1993 and is headquartered in Bangkok, Thailand.

The Thai Insurance Public Co. Ltd. is a first non-life Insurance company, which engages in the provision of non-life insurance services. It covers assurance for fire, marine, motor and miscellaneous insurance. The company was founded on January 10, 1938 and is headquartered in Bangkok, Thailand.

PTT Chemical Public Co. Ltd. is engaged in the production and distribution of Ethylene, Propylene and Polyethylene. The company's by products are Mixed C4, Pyrolysis gasoline, Cracker bottom and tail gas. PTT Chemical is also involved with the production and distribution of electricity, water, stream, and other utilities. It operates production support facilities such as jetty and buffer tank farm services for liquid chemical, oil and gas. The company was founded December 7, 2005 and is headquartered in Bangkok, Thailand

Part of Kirin Holdings Co., Ltd., San Miguel Beer Thailand Ltd. is a company that manufactures and commercializes alcoholic beverages. The private company is based in Pathumthani, Thailand.