Claim: The vicinity of Tongjiang was settled from 698 to 936 by Funie Mohe tribes, who were later submitted to Balhae Kingdom under King Mun's (the third and longest-reigning ruler of the Balhae) reign in 737 to 793.
Evidence: The vicinity of Tongjiang was settled at this moment by Heishui Mohe tribes (Hangul : 흑수말갈 Hanja/Hanzi : 黑水靺鞨 pinyin : Hēishuǐ Mòhé).