SK Hynix

Samsung Electronics said Wednesday it expects to invest 300 trillion won ($230 billion) over the next 20 years.

South Korea's major semiconductor companies, Samsung Electronics and SK Hynix hold more than 70 per cent of the smartphone memory chip market.

Samsung Electronics and SK Hynix, the leading companies in Korea were listed in 'Top 50 Companies in the World' which provided the highest shareholder returns