证券日报网讯1月19日，厚普股份（300471）在互动平台回答投资者提问时表示，公司航空零部件业务 主要由控股子公司嘉绮瑞开展，嘉绮瑞主要从事航空工装设计制造及装配，航空零件制造、航空钣金成 型、航空部件装配业务。相关业务数据请查阅公司定期报告。 ...

Group 1 - The core viewpoint of the news is that Lijun Co., Ltd. experienced a stock price increase of 5.04%, reaching 11.89 yuan per share, with a trading volume of 253 million yuan and a turnover rate of 3.84%, resulting in a total market capitalization of 12.288 billion yuan [1] - Lijun Co., Ltd. is based in Chengdu, Sichuan Province, and was established on November 23, 1999. It was listed on January 6, 2012. The company's main business includes roller presses (high-pressure roller mills) and their supporting equipment, as well as the design and manufacturing of aerospace parts and tooling [1] - The revenue composition of Lijun Co., Ltd. is as follows: aerospace component manufacturing accounts for 41.33%, roller systems (sub) 30.82%, roller presses and supporting equipment 11.35%, high-pressure roller mills and supporting equipment 8.26%, and others 8.24% [1] Group 2 - From the perspective of Lijun Co., Ltd.'s top ten circulating shareholders, a fund under Yongying Fund ranks among the top shareholders. The General Aviation ETF (159378) entered the top ten circulating shareholders in the third quarter, holding 989,900 shares, which represents 0.18% of the circulating shares. It is estimated that today's floating profit is approximately 564,200 yuan [2] - The General Aviation ETF (159378) was established on January 2, 2025, with a current scale of 1.209 billion yuan and a return of 26.39% since its inception [3] - The fund managers of the General Aviation ETF (159378) are Zhang Lu and Liu Tingyu. As of the report, Zhang Lu has a cumulative tenure of 6 years and 148 days, with a total fund asset scale of 22.921 billion yuan, achieving a best fund return of 113.52% and a worst return of -60.31% during his tenure. Liu Tingyu has a cumulative tenure of 2 years and 135 days, with a total fund asset scale of 21.354 billion yuan, achieving a best fund return of 109.3% and a worst return of -0.81% during his tenure [4]

Group 1 - The core viewpoint of the article is that the U.S. government, under President Trump's directive, is moving to impose tariffs on imported copper to reduce dependency on foreign sources, particularly from South America and China, due to national security concerns [1][2][3]. - The investigation into the impact of copper imports will include not only copper ore but also derived products like copper wire and scrap, which could broaden the scope of the tariffs [2]. - The U.S. Geological Survey indicates that approximately 40% of global copper production comes from South America, with the U.S. expected to rely on imports for 45% of its copper consumption by 2024 [3][4]. Group 2 - The U.S. aims to increase domestic copper production by 70% by 2035, reducing reliance on imports to 30% [3]. - The U.S. possesses the fifth-largest copper reserves globally but lags in smelting technology compared to China, which dominates the copper smelting and processing sector [4]. - The Trump administration plans to eliminate exemptions on tariffs for steel and aluminum, expanding the scope to include downstream products like screws and aerospace parts [4].