大韓民国臨時政府
Prior to this, on March 17, 1919, the Provisional Government of the Korean People's Congress was established in the Russian Maritime Province, followed by the establishment of the Hanseong Provisional Government in Kyungsung on April 23. The Provisional Government of the Republic of Korea in Shanghai raised the issue of integration. Negotiations proceeded between the Korean National Assembly and the Provisional Government of the Republic of Korea. Won Sehun, who was selected as representative of the National Assembly of Korea, came to Shanghai and negotiated. Both argued that the center of the government should be placed in the area, but that only the departments of the subordinate should be placed on both sides. Despite the two arguments, they were eager to establish a single government as well. Finally, on September 11, 1919, the Korean National Assembly of the Russian Maritime Province and the Hansung Provisional Government of Kyungsung were incorporated into the Provisional Government of the Republic of Korea in Shanghai, China. As a result, the Provisional Government of the Republic of Korea was able to develop into a single unified government representing various independence movements scattered in Korea, China, and Russia, as well as domestic and foreign Koreans.