Ulsan, located on the southeast coast of the Korean Peninsula, is a port city with a unique and warm climate and a famous industrial city. The urban area is 1 0,057.1km2, which is the largest among the six wide-area cities in Korea (Fushan, Incheon, Ulsan, Daejeon, Daegu and Gwangju) and is 1.74 times that of the capital Seoul. Taihe River runs through Ulsan City, and Ulsan Bay is connected with Ulsan Port, Wenshan Port and Fangyujin Port. Through these ports, Ulsan once closed the door of South Korea to East Asia and Southeast Asia, and now it is expanding its exchanges and cooperation with other countries in the world. Ulsan metropolis can be divided into old and new urban areas and back areas. Agriculture and fishing villages are divided by urban green belts, and the surrounding east coast and inland areas form a unique natural landscape. Ulsan has a decisive economic position. Since 1962 was designated as an industrial special zone, infrastructure such as roads, harbors, industrial water, industrial land and oil refineries have been under construction since the 1960s. In the 1970s, chemical, mechanical, metal, steel and other industries were established. Non-metal, automobile and shipbuilding industries were built in the 1980s. Ulsan, as a tractor for South Korea's economic development, has developed automobile, chemical industry, shipbuilding and related industries centering on two national industrial parks near the seaport.