On May 20, Shenzhen stock exchange sent a letter of concern to Sichuan Anning Iron And Titanium Co.Ltd(002978) requesting to explain the profit forecast, investment payback period, internal rate of return, etc. of the iron phosphate project, whether the company carried out detailed evaluation and calculation of the project in combination with industry characteristics and market development trend, whether the company has personnel, technology, management and other resources in this field, and whether it fully analyzed the potential risks of the project, The reason, rationality, necessity and realizability of the company’s investment in the project are explained in detail in combination with the above situation. It also explains the specific planning and progress of the company to promote the lithium iron phosphate project, whether it needs to fulfill the review procedures and information disclosure obligations, and whether there is a situation of “rubbing the concept” and “rubbing the hot spot” to hype the stock price.