Ocean One Holding Ltd., an investment holding company, engages in the import and wholesale of frozen seafood products in Hong Kong, Macau, Mainland China, and Japan. It offers frozen seafood products in various categories, such as 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 property holding business. It serves frozen seafood resellers and frozen seafood catering service providers. The company was founded in 2002 and is headquartered in Tsuen Wan, Hong Kong. Ocean One Holding Ltd. is a subsidiary of Karlson Holding Limited.