Phisudhi Phihakendr

Robinson Public Co. Ltd. engages in the operation of department store chains. It offers ladies', men's and children's wear, cosmetics, accessories, home decoration, household apparatus, gifts, toys, and other types of products. The company was founded in October 1979 and is headquartered in Bangkok, Thailand.

Part of 3M Co., 3M Thailand Ltd. is a company that manufactures and markets various products including abrasives, filtration products, post-it brand products, scotch brand foam tape, and others. The company is based in Bangkok, Thailand.

Energy Perfect Co. Ltd. imports and distributes coal and coke. The firm provides anthracite, bituminous, sub-bituminous and lignite. The company was founded in January 5, 2007 and is headquartered in Bangkok, Thailand.

Energy Earth Public Co., Ltd. engages in the development, mining, exploration, and distribution of a variety of coal. It operates through the Local and Overseas segments. The company was founded in 1980 and is headquartered in Bangkok, Thailand.

Part of Energy Earth Public Co., Ltd., PT Tri Tunggal Pitriati is an Indonesian company that owns coal mines and mining license. The company is based in Banjarmasin, Indonesia. PT Tri Tunggal Pitriati was acquired by Energy Earth Public Co., Ltd. on November 02, 2011 for $40.75 million.

PartnerLink Network Co. Ltd. provides consulting services on selling computer equipment. The private company is based in Bangkok, Thailand. Phiroon Phihakendr has been the CEO of the Thai company since 2003.