Which country was recently restored to South Korea's

Solution

South Korea formally restored Japan to its list of countries it gives preferential treatment in trade, three years after the neighbours downgraded each other's trade status amid a diplomatic row fuelled by historical grievances. In September 2019, South Korea dropped Japan from its white list of countries receiving fast-track approvals in trade, reacting to a similar move by Tokyo. About South Korea Capital: Seoul                                      Currency: Korean Republic won About Japan Capital: Tokyo                                     Currency: Japanese yen