Rongcheng Yihai Aquaculture Co., Ltd. is a professional enterprise engaged in marine fish ecological breeding. The farm was established in March 2011 and is a sole proprietorship enterprise. It has a number of breeding bases, located in Jidao Bay and Sanggou Bay in Rongcheng City, Dongshan Island in Fujian Province and Lingshui in Hainan Province. The breeding sea area covers an area of more than 2500 mu, with a total of more than 1500 iron cages, deep-water cages and environmental protection cages. It has a well-equipped seedling raising workshop, overwintering breeding workshop and bait workshop with 3600 cubic water bodies. At present, there are 20 employees, including 2 technicians and 3 enterprise managers. It can produce more than 800,000 kinds of finished fish every year. The cultured varieties include: red-fin Fugu, orange puffer fish, black fish, Otaki six-line fish, turbot, turbot, turbot, sandboard fish, green-fin horseface, spotted grouper, snapper, pearl gentian grouper, cloud dragon grouper, golden tiger grouper, blue melon seed spotted, spotted grouper, sea cucumber. The products are mainly sold to South Korea and Japanese domestic cities.