Changchun Yidong: The cumulative deviation in stock price changes was 20.38%, and the static price-earnings ratio of 221.72 was higher than the industry 27.75 Changchun Yidong's announcement. The cumulative deviation value of the company's stock closing price increase for three consecutive trading days on October 15, October 16, and October 19, 2026 was 20.38%. The company claims that production and operation are normal, and there have been no major changes in the market environment, industry policies, production costs and sales; as of the announcement disclosure date, there is no significant information that should have been disclosed but not disclosed. On October 19, 2026, the company's static price-earnings ratio was 221.72, and the industry's static price-earnings ratio was 27.75.

Changchun Yidong: The cumulative deviation in stock price changes was 20.38%, and the static price-earnings ratio of 221.72 was higher than the industry 27.75 Changchun Yidong's announcement. The cumulative deviation value of the company's stock closing price increase for three consecutive trading days on October 15, October 16, and October 19, 2026 was 20.38%. The company claims that production and operation are normal, and there have been no major changes in the market environment, industry policies, production costs and sales; as of the announcement disclosure date, there is no significant information that should have been disclosed but not disclosed. On October 19, 2026, the company's static price-earnings ratio was 221.72, and the industry's static price-earnings ratio was 27.75.