The Port of Kaohsiung is the largest port in Taiwan . The Port of Kaohsiung is the largest harbor in Taiwan , handling approximately 10 million twenty-foot equivalent units ( TEU ) worth of cargo in 2007 . The port is located in southern Taiwan , adjacent to Kaohsiung City , surrounded by the city districts of Gushan , Yancheng , Lingya , Cianjhen , Siaogang , and Cijin .