August 15. According to the query life information. On August 5, 2023, the price of Shangyang Sanpin Chicken was reduced by -5.57%-3.68%. Sanpin trademark belongs to Guo, focusing on the production and sales of quick-frozen chicken soup (chicken yuan soup). Brand introduction Shang Yang Sanpin is headquartered in Guangzhou, and its production base is located in Heyuan. It independently develops and produces chicken yuan soup.