Man Sang Envelope Manufacturing Company Limited, established in 1981, is a prominent Hong Kong-based manufacturer specializing in paper products, including envelopes, social stationery, packaging, books, shopping bags, and greeting cards. The company is part of the larger Man Sang Printers (Group) Limited, which operates multiple production plants in China. With a commitment to quality, Man Sang has earned various certifications, including ISO9001, ISO14001, BRC, and FSC, and serves a wide range of markets globally.