Qiongshan district. According to Baidu map query, Sun Moon Plaza Duty Free Clothing Store is located in Sun Moon Plaza, qiongshan district, Haikou City, Hainan Province, so it is qiongshan district. Sun Moon Plaza Duty Free Shop, also known as cdf Haikou Duty Free Shop, belongs to China Zhongmian Group, the largest duty-free operator in China. Brand diversity, complete goods, covering perfume cosmetics, watches, fine products, food department stores, imported drinks and other duty-free categories.