When the Japanese army surrendered in World War II, who signed the surrender letter with China?

Hello:

Yes: Xu Yongchang.

General Xu Yongchang, Minister of Military Command of China, accompanied by General Shang Zhen, signed the surrender letter on behalf of China.

1945 at 9: 00 am on September 2, the Japanese surrender ceremony was held on the USS Missouri in Tokyo Bay. Shigemitsu Mamoru, Japan's new foreign minister, signed the surrender book on behalf of the Japanese emperor and government, and Umezu Yoshijiro, the army chief of staff, signed the surrender book on behalf of the Imperial Base Camp. Subsequently, representatives of the allied countries who accepted the surrender, General MacArthur, Supreme Commander of the Allied Forces, Admiral Nimitz of the United States, Admiral Xu Yongchang of China, Admiral Fleischer of the United Kingdom, Admiral Jerry Vico of the Soviet Union and representatives of Australia, Canada, France, the Netherlands and New Zealand signed in turn. At this point, Japan, the last of the three fascist axis countries, formally surrendered, and World War II ended with the defeat of the fascist axis countries and the victory of the anti-fascist allies.