Vivat Jiratikarnsakul

GHECO-One Co., Ltd. engages in the power generation business. It produces and supply electricity to Electricity Authority of Thailand (EGAT) under the Independent Power Producers (IPP) program. The company was founded in 2007 and is headquartered in Rayong, Thailand.

Cofely Thailand Co. Ltd. provides industrial utility management, consulting, and maintenance services. The private company is based in Rayong, Thailand.

Houay Ho Power Co., Ltd. is a leading private power producer that owns and operates a 152 MW hydroelectric power plant in the Attapeu province of southern Laos. The joint venture company is based in Vientiane, Lao People's Democratic Republic. The plant, which began commercial operation in 1999, is among the first IPP plants built in Laos and is operated in accordance with a build, operate and transfer agreement with the Lao government. The electricity production from this plant is sold under long-term power purchase agreements to EGAT and, to a small extent, to EDL for distribution to nearby communities. The Laotian company is a joint venture between Glow, the Electricite du Laos (EDL), and WHA Energy 2 Co., Ltd. The CEO of the company is Brendan G. H. Wauters.

Houay Ho Thai Co., Ltd. provides electric services. The joint venture company is based in Bangkok, Thailand. Pajongwit Pongsivapai has been the CEO of the Thai company since 2007.

Glow Hemaraj Wind Co., Ltd. provides electric services. The private company is based in Chaiyaphum, Thailand.

Million Island Pattaya Co. Ltd. operates resort, entertainment, and leisure development property. The company is based in Bangkok, Thailand.

Part of WHA Corp. Public Co. Ltd., WHA Industrial Management Services Vietnam Co. Ltd. is a Vietnamese company that provides logistics and industrial land development services. The company is based in Ba Dinh, Vietnam.

Part of WHA Corp. Public Co. Ltd., WHA Saraburi Industrial Land Co., Ltd. is a Thai company that engages in industrial estate development. The company is located in Thailand. WHA Saraburi Industrial Land Co. was acquired by WHA Industrial Development Public Co., Ltd., a subsidiary of WHA Corp. Public Co. Ltd. from The Siam Cement Public Co. Ltd. on October 01, 2010 for $25.16 million.