Saturday Co.Ltd(002291) (002291) received the attention letter from Shenzhen Stock Exchange. According to the performance forecast for 2021 disclosed by the company on the 19th, the Yuanwang network purchased by the company in 2018 achieved a rapid growth in 2021, with the annual turnover of orders exceeding 100 million and the sales of Gmv exceeding 10 billion yuan, about 2.5 times that of the same period in 2020. The key planning of Yuanwang network in 2022 includes the establishment of Yuanwang Innovation Research Institute to strengthen research in blockchain, AI intelligence, metauniverse, digital virtual human and other fields. The business scale of Yuanwang network in 2022 is expected to achieve large growth. Shenzhen stock exchange requires to explain the specific plan for the establishment of Yuanwang Innovation Research Institute and the preparation progress so far, and on this basis, explain the relevance, necessity and rationality of the research on the business between blockchain, AI intelligence, metauniverse, digital virtual human and Yuanwang network, and whether relevant research has been carried out and phased results have been formed, Whether there are hot spots in the performance forecast.