Yonxin's Quality Control Department is independently in charge of system quality and product quality. It is under the direct supervision and management of general manager.
A team of system enhancement examines each procedure from time to time, organizes regular in-house audit and management inspection, and constantly improves the operation system.
QC teams are in charge of supplier selection, incoming material inspection as well as key step test and control. Quality control department has established an integrated quality control system together with advanced laboratories of experimentation and examination.