Zuoying District is a district of Kaohsiung City in southern Taiwan. Zuoying District has the most populous village in Taiwan: Fushan Village. Zuoying was established in the mid-seventeenth century as a military fortress, known as Old Fengshan. It is now the site of Tsoying Harbour, known formerly as Port Saei. 'Sa-ei' is the Japanese on'yomi of the city's na…Zuoying District is a district of Kaohsiung City in southern Taiwan. Zuoying District has the most populous village in Taiwan: Fushan Village. Zuoying was established in the mid-seventeenth century as a military fortress, known as Old Fengshan. It is now the site of Tsoying Harbour, known formerly as Port Saei. 'Sa-ei' is the Japanese on'yomi of the city's name in Chinese characters, but was romanized as 'Tsoying' after World War II by American Naval Consultants.