According to relevant information, Haiyucheng belongs to Tazhong Community, Huancui District, Weihai City, Shandong Province, with its neighborhood committee/village committee: Da Qiao neighborhood committee, Huancui District, Weihai City, Shandong Province, Tazhong Community (nearby inoculation site), and its neighborhood committee/village committee: Da Qiao neighborhood committee, Huancui District, Weihai City, Shandong Province.