Kim Wah Koh

PowerSeraya Ltd. provides electricity services. Its services include utility, energy market, physical oil trading, and energy retailing services. The firm also provides steam & cooling water, engaging in oil trading, and producing water through Reverse Osmosis Desalination, for the company's own use or for sale to our large industrial and commercial customer base. The company was founded in 1971 and is headquartered in Singapore City, Singapore.

Hiap Seng Engineering Ltd. engages in the provision of building construction, engineering, procurement, construction, and plant maintenance services for the oil and gas and energy sectors. The firm also offers process and industrial plant engineering and consultancy services. The company was founded by Tan Kuay Hoe in 1950 and is headquartered in Singapore.

Public Utilities Board of Singapore, also known as PUB, is the national water agency of Singapore. The company is based in Singapore, Singapore and ultimately controlled by the Government of Singapore. The Singaporean company's mission is to ensure a sustainable and efficient water supply for Singapore's residents and businesses.