The appointment came after the opposition-led parliament failed to issue a report on the outcome of its confirmation hearing for the new top diplomat, Kang Kyung-wha.
Moon earlier stressed a need to have a foreign minister before his summit with U.S. President Donald Trump later this month, as well as the Group of 20 summit in Germany in early July.
Presenting Kang with a letter of appointment in a ceremony at the presidential office Cheong Wa Dae, the president expressed regrets over disputes over his nomination and appointment of Kang.
What are the implications of President's appointment of the new Foreign Minister amd the opposition parties' objections?