ZGXT(SZ:000831) Sou Hu Cai Jing·2025-12-24 19:38Group 1 - The U.S. Department of Commerce suspended exports of products and technology to COMAC, specifically targeting the Leap-1C engine for the C919 aircraft, as a response to China's rare earth export controls [1][3] - The suspension has caused delays in new orders for the C919, although COMAC has sufficient inventory to maintain production temporarily [1][3] - The U.S. relies heavily on Chinese rare earth materials, with over 80% dependency, leading to immediate concerns in defense and semiconductor sectors following China's export controls [3][5] Group 2 - The CJ-1000 engine, a domestic alternative to the Leap-1C, has shown promising results in testing and is expected to be integrated into the C919 by the end of the year, with a thrust comparable to the Leap-1C [7][13] - Following the suspension, COMAC prioritized the assembly of already delivered components while increasing domestic production capabilities, aiming for an 80% localization rate [9][13] - The first successful test flight of the C919 equipped with the CJ-1000 engine occurred in October, indicating a significant advancement in China's aviation engine technology [13][15] Group 3 - The U.S. has proposed to relax rare earth export controls in exchange for increased quotas from China, leading to the resumption of GE's component shipments for the C919 [9][15] - The ongoing trade tensions have prompted U.S. companies to seek alternative supply chains, but quality concerns remain, particularly in the context of defense and electric vehicle sectors [15] - The C919 project is positioned to deliver over a hundred aircraft next year, reflecting a strategic shift in the global aviation market amid U.S.-China competition [15]