China.

According to the query on China Tea Network, Master Kong iced black tea is a Chinese brand. Master Kong Holdings Co., Ltd. is headquartered in Tianjin Economic and Technological Development Zone and is mainly engaged in the production and operation of instant noodles, beverages, cakes and related supporting industries. Founded in 1991 and headquartered in Tianjin, China, Tingyi Holdings Co., Ltd. was listed on the Hong Kong Stock Exchange in February 1996.