Nanhong Village. Nanhongcun is a large-scale domestic supplier of Rushan oysters. The daily shipment volume of Rushan oysters is 200,000 kilograms. It has 8 distribution and warehousing centers across the country, supplies 8 domestic large-scale supermarket chains, and supplies 6 domestic seafood direct-operated brands. It is the largest supplier of Rushan oysters. Supplier. Rushan oysters are bivalve shellfish of the order Oyster. They are mainly distributed in Rushan Pass and Langnuankou. They are also a specialty of Rushan City, Weihai City, Shandong Province.