Tilapia production base. According to Sina News, Maoming City is China's largest tilapia production base, the country's largest tilapia breeding advantage area and export processing base, so Maoming is called the capital of tilapia. Maoming is located on the coast of the South China Sea, in the southwest of Guangdong Province, backed by the southwest of the motherland, with mountains on its back and the sea on its back.