Shandong Weishan Lake Economic and Trade was founded in 1953 and has been recognized as an export aquatic product processing plant by the State Entry-Exit Inspection and Quarantine Bureau and the US FDA. In 2006, the registered trademark of Weishanhu was also recognized by the Ministry of Commerce as "China Time-honored Brand" and a famous trademark in Shandong Province, and its Songhua eggs were also rated as Shandong famous brand products. The egg whites are crystal clear, the egg yolks are coagulated but not hard, and they are all vacuum-packed.