Master Yi has formulated a complete supplier evaluation and selection process, with a view to selecting the suppliers that best meet the interests of Master Yi and meet market demand. We promise to give all suppliers equal opportunities to cooperate with Master Yi. In order to ensure fairness, openness and fairness in the procurement process, we strive to resolve any dissatisfaction that may exist in the interaction between the supplier and Master Yi. Master Yi specially set up a supplier service office to handle all procurement-related issues. We arrange a dedicated person to collect feedback and complaints from suppliers, including complaints from suppliers against unfair and unethical behaviors of Master Yi employees or departments.