On the orders of then-President Chiang Kai-shek, a second harbor entrance was completed in 1975 that permitted passage of ships up to 100,000 tons. The Chungtao New Commercial Harbor Area was developed in 1980, which added 27 deepwater wharves and two shoal wharves. During this time, the development of the Kaohsiung Export Processing Zone, Chienchen Fishing Port, and Linhai Industrial Park further spurred demand for port services. These were met by plans for a new steel-making factory, million-ton shipbuilding yard, and construction of a new container terminal (Wharves 1~4). To connect the offshore island of Qijin (Cijin) with Kaohsiung City, the Cross Harbor Tunnel was built in 1984, which allowed direct truck access to the island. In 1989, due to heavy container loading volumes, construction on Container Terminal No. 5 was begun, with work completed in 1990.