In July 2022, Yiqing Jiangsu welcomed the annual ISO9001:2015 Quality Management System certification audit. The audit, conducted over two days, was performed by Qin and Jiang teachers from Beijing Xinxinyuan Certification Co., Ltd. Since the company passed the quality management system certification in 2017, significant progress has been made in terms of raw material procurement quality, daily production processes, and product quality inspections, all in the formalization of company management. The entire company attaches great importance to this annual audit, which serves as a test of our management practices.