Cham To Tsui

Yan Chai Hospitalprovides acute and extended care services. Its services include medical, social, education, charitable fund and columbarium. The company was founded in 1973 and is headquartered in Hong Kong.

CT Environmental Group Ltd. is an investment holding company, which engages in the provision of environmental protection business. It operates through the following segments: Supply of Industrial Water, Provision of Wastewater Treatment Plants Operation Services, BOT Project Construction and Operation Services, Provision of Heating Services and Electricity Generation, Provision of Sludge and Solid Waste Treatment Services, and Provision of Hazardous Waste Treatment Services. The Supply of Industrial Water segment supplies industrial water. The Provision of Wastewater Treatment Plants Operation Services segment focuses on wastewater treatment plants under build-own-operate agreement. The BOT Project Construction and Operation Services segment constructs and operates wastewater, and solid waste treatment plants. The Provision of Heating Services and Electricity Generation segment offers heating services and electricity generation. The Provision of Sludge and Solid Waste Treatment Services segment comprises of sludge, and solid waste treatment services. The Provision of Hazardous Waste Treatment Services segment consists of hazardous waste treatment services. The company was founded by Tsui Cham To on November 30, 2010 and is headquartered in Guangzhou, China.

Guangzhou To Kee Enterprises Development Group Ltd. engages in the investment of companies. Its business activities include investment advisory services, enterprise management consultancy services, real estate development and management, property management, and sewage recycling and treatment. The company was founded by Cham To Tsui on August 26, 1993 and is headquartered in Guangzhou, China.

Yulin Xintao Environmental Protection Technology Co., Ltd. provides environmental technology promotion services. Its business activities include sewage treatment, waste recycling, tap water supply, production and supply of thermal energy and electricity, real estate development and management, and solid waste disposal and resource utilization. The company was founded on October 16, 2015 and is headquartered in Yulin, China.

Xintao Investment Co., Ltd. provides investment services. Its business activities include unit logistics management services, business management services, environmental monitoring, water pollution monitoring, ecological monitoring, water pollution control, and air pollution control. The company was founded on September 9, 2015 and is headquartered in Guangzhou, China.