Wang Kei Wah

CST Group Ltd. operates a coal mine in West Central Alberta, Canada. It operate through its subsidiaries, which are engaged in money lending business; rental business with both residential and commercial units in Hong Kong and Mainland China; and investment in financial instruments. It operates through Mining Business, Investments in Financial Instruments, Property Instruments, and Money Lending. The company was founded on November 11, 1993 and is headquartered in Hong Kong.

Fulbond Holdings Ltd. is an investment holding company engages in manufacturing and trading in wooden products. The group operates into business segments: timber business, food processing and distribution and property development. The group's products include blockboard and particle board, door skin and other wooden products. It also involve in trading and investment of securities and developing residential as well as commercial buildings. The company is headquartered in Hong Kong

The Group's principal activities are provision of financial information services and the provision of credit card security device and digital network authorisation services. Other activities include investment holding; holding of patent license; provision of SMS personalised astrology services and management services. The group operates in Hong Kong and The People's Republic of China.

Vivien Chan & Co. engages in the provision of law services. It offers advise on building, construction, and civil engineering law. The company was founded by Vivien Chan in 1985 and is headquartered in Hongkong.