Xiuying district is 8 kilometers from the middle line of the sea. Twin-embryo pig farm is located in the middle line of xiuying district, Haikou City, Hainan Province, eight kilometers away from Haikou City, Hainan Province. Twin Group, founded in 1998, is a national large-scale agricultural and animal husbandry enterprise specializing in pig breeding, pig service, feed sales, corn storage and pig slaughter. It used to be a feed company, but now it is a pig company.