Ocean One Holding Ltd., together with its subsidiaries, engages in the import and wholesale of frozen seafood products in Hong Kong, Macau, Mainland China, Taiwan, and Japan. It offers prawns; scallops, oysters, and surf clams; fishes; crabs and roe; octopuses and cuttlefishes; processed seafood products; and miscellaneous products. The company is also involved in the provision of product sourcing, quality assurance, storage, and transportation services; and property holding business. It serves frozen seafood resellers, local integrated food product wholesaling companies, and food trade companies, as well as frozen seafood catering service providers, including restaurants, food chain stores, food processing operators, and other end customers. The company was founded in 2002 and is headquartered in Tsuen Wan, Hong Kong. Ocean One Holding Ltd. operates as a subsidiary of Karlson Holding Limited.