CATL(SZ:300750) KAIYUAN SECURITIES·2025-09-27 13:01Investment Rating - The report does not explicitly state an investment rating for the automotive parts industry, but it highlights significant growth opportunities driven by domestic substitution, smart technology, and lightweight materials. Core Insights - The automotive parts industry in China is experiencing accelerated domestic substitution due to the rise of independent vehicle manufacturers, with a focus on key components like automotive electronics and engine parts [1][16]. - The smart technology trend is pushing the iteration of automotive electronics, with a growing demand for sensors and wiring harnesses, particularly in the context of autonomous driving [1][32]. - Lightweight materials, such as aluminum and engineering plastics, are becoming increasingly important, with aluminum casting offering high cost-performance ratios [1][10]. Summary by Sections 1. Domestic Substitution, Smart Technology, and Lightweight Materials - The rise of independent vehicle manufacturers is driving the acceleration of domestic substitution in core automotive components [1.1][16]. - The automotive electronics sector is evolving due to advancements in smart driving technology, leading to increased demand for various sensors [1.2][32]. - Lightweight materials are gaining traction, with aluminum and engineering plastics extending their applications from decorative to functional components [1.3][10]. 2. Coordination Between Humanoid Robot Components and Automotive Parts - The humanoid robot industry is expected to transition from "0" to "1" in terms of industrialization starting in 2024, with significant overlap in technology and components with the automotive sector [2.1][22]. - Key components such as motors, sensors, and gear reducers are critical for both humanoid robots and automotive applications, indicating a potential growth area for automotive parts suppliers [2.2][27]. 3. Focus on High Scarcity Attributes and Industry Trends - The report emphasizes the importance of identifying high-scarcity and high-growth companies within the automotive parts sector, particularly those benefiting from domestic substitution and the rise of humanoid robots [3.1][35]. - Companies like Lintai New Materials, a leader in wet-type paper-based friction plates, are highlighted for their significant domestic substitution potential [3.1][36]. - Audiwei, a leader in ultrasonic sensors, is noted for its strategic expansion into the humanoid robot sector, showcasing the potential for cross-industry growth [3.2][39].