On May 18, Shenzhen Stock Exchange issued an annual report inquiry letter to Guangdong Shirong Zhaoye Co.Ltd(002016) to inquire about investment, prepayment, inventory and other six aspects. Among them, the inquiry letter requires the company to explain the reasons and rationality of the sharp decline in net cash flow from operating activities during the reporting period in combination with business model, settlement model and development and sales of major projects; Explain the reasons and rationality of the substantial increase of prepayment, whether the prepayment has business background and transaction essence, whether the prepayment proportion is reasonable, whether it is significantly higher than the general level of the same industry, and whether it constitutes the provision of financial assistance or occupation of non operating funds.