first built in ulsan in s industrial complexes totalling across the country has significantly contributed to the korea s industrialisation and economic growth to date the investment in building industrial complexes was followed by heavy investment in infrastructure particularly in transport such as expressway networks and rapidtransit railway ktx while the central government support had been focused on large scale complexes usually located in cities since the s agricultural and industrial complexes have also received the government support as ways of revitalising small and mediumsized cities and regions