Rui Hui

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.

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.

The Group's principal activities are organised into two operating divisions: metals trading and investment in securities. The Group operates in Hong Kong only.

Australasian Institute of Mining & Metallurgy, also known as AusIMM, is the leading organization for professionals working in the resources sector. AusIMM is based in Carlton, Australia, and has subsidiaries in Hong Kong. The Australian company's main focus is on shaping careers, showcasing leadership, creating communities, and upholding standards.