no. According to the information of Tianyan, Guangxi Yangyanhou Biotechnology Co., Ltd. is located at Room 111, 11th floor, Building 2, Dajiahui Huijin City, No.15 Kunlun Avenue, Xingning District, Nanning. The company has registered trademark, industrial and commercial department certification and business license, and is a legal (regular) company with complete qualifications and legal protection.