ST observation: the company's stock will be subject to additional risk warnings

*ST Guandian Announcement: Due to the violation of Article 12.9.1 of the Shanghai Stock Exchange's Sci-Tech Innovation Board Listing Rules, starting from July 8, 2025, the company's stock will be subject to additional risk warnings. The company's stock abbreviation will remain as "*ST Guandian" and the stock code "688287" will remain unchanged. After the additional implementation of other risk warnings, the company's stock will not be listed on the Shanghai Stock Exchange's risk warning board, and the daily price limit will remain at 20%, continuing to trade on the risk warning board.