美国据报暂停向商飞出售部分技术，航材国产化需求迫切

Industry Investment Rating - The industry investment rating is "Outperform the Market" and is maintained [2] Core Viewpoints - The report highlights the increasing production and delivery of China's C919 passenger aircraft, with an expected annual production capacity of 75 units by 2025 and 200 units by 2029 [6] - The C919 aircraft has achieved over 50% domestic production rate, although key components like engines and avionics still rely on foreign suppliers [7] - The report emphasizes the importance of domestic supply chain security for aviation materials, predicting a shift towards domestic production of critical systems and high-value components [9] Summary by Relevant Sections Industry Basic Situation - The closing index is at 1508.79, with a 52-week high of 1712.48 and a low of 1113.62 [2] Recent Developments - The U.S. has suspended the sale of certain technologies to Chinese companies, impacting the development of the C919 aircraft [5] - The report notes that the CJ-1000A engine development is progressing better than expected, which is crucial for the C919's future [9] Market Performance - The relative performance of the defense and military industry shows a fluctuating trend, with a peak increase of 32% observed from June 2024 to June 2025 [4]