At that time, it was under the jurisdiction of Ulsan County office and Heiba Setsudoshi (Regional Commandants of army) of Gyeonsang-jwado Prefecture in the old town area of Ulsan.
当時は蔚山旧市街に置かれた蔚山郡庁と慶尚左道兵馬節度使の管轄下にあった。