Siu Hong Wong

Blockchain Group Co. Ltd. is an investment holding company, which engages in the plantation, production, processing, and sale of tea. Its products include raw teas, refined teas, and other related products. The company was founded by Zhen Rong Cai in 1988 and is headquartered in Hong Kong.

Costin New Materials Group Ltd. is an investment holding company, which engages in research and development, production and sale of non-woven fabrics and recycled chemical fibres that are mainly targeted for industrial applications. It operates through three segments: Non-woven Materials, Recycled Chemical Fibres and Thermal Resistant Filtration Materials. The Non-woven Materials segment engages in the manufacturing and sale of non-woven fabrics and other types of non-woven materials. The Recycled Chemical Fibres segment engages in the manufacturing and sale of chemical fibres produced from recycled materials, such as polyethylene terephthalate chips. The Thermal Resistant Filtration Materials segment engages in the manufacturing and sale of thermal resistant filtration materials. The company was founded by Chim Wai Kong, Chim Wai Shing Jackson, Chim Fo Che, Nian Wei Deng, Hong Lian Qiao, Hui Cheung Mau, Sze Fo Chau and Hong Ming Qu on August 26, 2009 and is headquartered in Hong Kong.

CECEP COSTIN New Materials Group Ltd. engages in the business of property investment in Hong Kong and Taiwan. It focuses on leasing of residential, commercial, and hotel properties. The company was founded in June 1999 and is headquartered in Hong Kong.