South Korea is a developed country in East Asia with the highest credit rating of any country there.
South Korea . South Korea , along with Taiwan , Singapore and Hong Kong ( China ) is one of the four high-tech industrialized developed countries often referred to as the Four Asian Economic Dragons . Today , it is the world 's seventh largest advanced economy and fifth largest exporter with the G20 's largest budget surplus and highest credit rating of any country in East Asia . South Korea is a technologically advanced developed country driven by a highly educated and skilled workforce , having the world 's eighth highest median household income , the highest in Asia .