On May 18, the Shenzhen Stock Exchange issued an annual report inquiry letter to Ylz Information Technology Co.Ltd(300096) requiring the company to discuss eight aspects, including operating performance, related party transactions and R & D expenditure. Among them, the inquiry letter requires the company to specify the pricing basis and fairness of relevant equity transfer transactions in combination with the assets and liabilities of the subject company and the evaluation of this transaction, and whether there is any situation of transferring benefits to related parties; Explain the reasons and rationality for the decline of operating income but the significant year-on-year increase of expenses during the period; In combination with the number of employees, salary level and average salary of comparable companies in the same industry, explain the reasons for the significant increase in cash paid to and for employees, and whether it matches the changes in operating income and the number of employees.