South Korea has risen to become Asia's fourth-largest economy with a GDP of $1.62 trillion (£1.3trn), having transformed from one of the poorest nations on the planet to one of the richest in just a few generations, a process that has been dubbed 'the Miracle on the Han River'. The nation's principal industries, which are dominated by family-run conglomerates called chaebols, include hi-tech electronics, shipbuilding, services, automobiles and construction. However, Japan’s curb on exports to South Korea, which are essential to the manufacture of these electronical goods, presents a big risk to growth