【公告臻选】航空航天+军工国防+隐身材料龙头！公司签订2.5亿元航空器机身用特种功能材料产品合同

Core Insights - The article emphasizes the importance of efficiently navigating through a large volume of announcements to identify key investment opportunities and risks in the market [1] Group 1: Selected Highlights - On December 23, the article highlighted a significant overseas order worth 2.5 billion yuan for Baoshan Iron & Steel, which led to a 3.53% increase in its stock price on December 24 [2] - The article also noted that Jiufeng Energy signed an agreement with China Long March Rocket Co., which initially resulted in a less than 2% increase in stock price but later surged to a limit-up by the end of the trading day [2] Group 2: Today's Overview - A company in the aerospace and defense sector signed a contract for special functional materials for aircraft bodies worth 250 million yuan [3] - A company involved in power semiconductors and IGBT technology has undergone a change in actual control to the Hubei State-owned Assets Supervision and Administration Commission [3] - A company specializing in autonomous driving and automotive electronics has achieved regular L4-level autonomous driving operations within a closed park [3]