Legal. Shenyang Sanjiu Gold Industry refers to Shenyang Huayu Gold Trading Co., Ltd., which was established on April 27, 20 13, and is named Sanjiu Gold Industry. Registered in Shenyang Shenhe District Market Supervision Administration, its business scope includes the sale and purchase of gold products and jewelry. According to the data of Tianyancha, Shenyang Huayu Gold Trading Co., Ltd. is a legally registered company. Therefore, Shenyang Sanjiu gold industry is legal.