Founded in 1994, Nantong Changhua Aquatic Food Co., Ltd. specializes in the production of frozen shellfish products. The company now operates processing area of 4,000m², along with 6,000m² cold storage facility capable of holding over 4,000 tons of goods. It is also equipped with 10,000m² of shellfish temporary holding ponds and a provincial-level export demonstration base covering 4,450 acres. Annually, the company yields 6,000 tons of live clams, processes and exports 2,000 tons of shellfish products, and exports more than 1,000 tons of live shellfish.

Throughout the corporate journey, enhancing product quality has always been the foremost priority of the company. As early as 2003, the company achieved HACCP certification, standing among the first group of aquatic product manufacturers to do so. With the continuous advancement of the corporate quality management system, Changhua has successively obtained certifications including HACCP, ISO 22000, the British Retail Consortium (BRC) Global Standard, and the Social Accountability SMETA audit. For over two decades, the products have enjoyed strong sales in markets such as the United States, Canada, Japan, and South Korea. In recent years, With the continuous rise in demand from both domestic and international markets, the company has actively cultivated its brand image while placing greater emphasis on applying consistent quality standards across all products sold globally. The "Yuan Wu" trademark has been honored as a Famous Brand Product in Nantong.

Currently, the company's main product portfolio includes a diverse range of shellfish offerings, including live clams; frozen cooked vacuum-packed clams; frozen cooked clams in half-shell; frozen clam meat; and juicy frozen clam meat. Additionally, the company produces frozen cooked vacuum-packed variegated clams; frozen cooked variegated clam meat; frozen cooked juicy variegated clam meat; and individually quick-frozen variegated clam meat; live corbicula, frozen raw corbicula and frozen cooked corbicula as well as frozen mussels and frozen mussel meat etc.