Tanon Tantisunthorn

Part of Gulf Energy Development Public Co. Ltd., Gulf International Holding Pte Ltd. is an investment holding Singaporean company. The company is based in Singapore, Singapore.

BGSR 81 Co., Ltd. engages in the investment in operation and maintenance of the intercity motorway projects. The company is headquartered in Thailand.

BGSR 6 Co., Ltd. engages in bidding for government agencies contracts on the designing, construction, civil works maintenance and installation of toll-collection system for intercity highways. The company is headquartered in Bangkok, Thailand.

Part of Gulf Energy Development Public Co. Ltd., Chiangmai Waste to Energy Co. Ltd. is a Thai company that provides treatment and disposal of non-hazardous waste and generates solar power. The company is located in Thailand. The company was founded in 2021. Chiangmai Waste to Energy Co. was acquired by Gulf Renewable Energy Co. Ltd. from All West To Energy Co. Ltd. on January 25, 2022.

Part of Electric Power Development Co., Ltd., Gulf JP Co., Ltd. is a diversified company based in Bangkok, TH. The company's headquarters are located at 87 M Thai Tower, All Seasons Place, Floor 11, Wireless Road, Lumpini Subdistrict, Bangkok 10330. The Thai company's core activities are focused on four businesses\: power generation, renewable energy, gas, infrastructure & utilities, and hydropower. Gulf JP Co. is registered with a capital of Baht 93 and has a registered company number of 0107560000231. Gulf JP Co. was founded in 2011 and began trading on December 6, 2017, on the Stock Exchange of Thailand.