Shandong Daye announced abnormal stock trading fluctuations. The company has noticed that Shandong Daye has been involved in commercial aerospace concepts recently. After conducting a self-inspection, the company used cash to subscribe for 59.998 million yuan of Hubei Sanjiang Aerospace Jiangbei Machinery Engineering Co., Ltd.'s (capital increase, subscribed capital of RMB 26.2 million) on June 30, 2021. After the capital increase is completed, it holds 4.216% of the equity of Jiangbei Company. Jiangbei is mainly engaged in aerospace power systems, antenna covers and other aerospace model products, as well as research and development of special pressure vessel products, high-end electromechanical complete sets of equipment, advanced laser application equipment and other civilian products. The above-mentioned investment is a financial investment that does not directly generate revenue and has no impact on the company's performance.