Group 1 - The stock of Youyan New Materials reached a limit-up of 10.02% on September 1, trading at 25.03 yuan per share with a transaction volume of 2.332 billion yuan and a turnover rate of 12.03%, resulting in a total market capitalization of 21.189 billion yuan [1] - Youyan New Materials Co., Ltd. is located in Haidian District, Beijing, and primarily engages in the research and production of rare earth materials, thin film materials for micro-optics, biomedical materials, rare and precious metals, infrared optics, and optoelectronic materials, making it a key player in China's non-ferrous metal new materials industry [1] - The company has a registered capital of 846.553332 million yuan and holds or indirectly controls 18 enterprises, including 5 significant subsidiaries [1] Group 2 - As of March 10, Youyan New Materials had 189,300 shareholders, with an average of 4,471 circulating shares per person [2] - For the period from January to September 2024, Youyan New Materials reported operating revenue of 6.76 billion yuan, a year-on-year decrease of 18.75%, and a net profit attributable to shareholders of 115 million yuan, down 17.98% year-on-year [2]