Core Viewpoint - The rapid development of the new energy vehicle (NEV) market is driving significant growth in the wiring harness industry, with the market size expected to reach 64.4 billion yuan in 2024, representing a year-on-year growth of 34.4% [1][9]. Overview - NEV wiring harnesses are essential components that connect electrical parts of vehicles, transmitting power and signals, and are often referred to as the "nervous system" of the vehicle [2]. - These harnesses consist of insulated wires, protective sheaths, connectors, and bundling components, and are categorized by voltage levels (high and low), functionality (power transmission, signal transmission, auxiliary equipment), and installation locations (battery pack, chassis, body) [2][3]. Industry Entry Barriers - The wiring harness plays a critical role in the electrical systems of NEVs, requiring high standards in product development, production technology, and quality control [3]. - As the NEV market evolves towards smart, shared, and connected vehicles, there are increasing demands for safety, lightweight, customization, and integration, necessitating strong innovation and technical capabilities from wiring harness manufacturers [3][4]. Related Policies - The Chinese government has implemented various policies to support the development of the automotive parts industry, including NEV wiring harnesses, creating a favorable policy environment for industry growth [5]. Industry Chain - The upstream of the NEV wiring harness industry includes suppliers of basic materials (copper, aluminum, rubber, plastic) and core components (connectors, terminals, sensors) [6]. - The midstream involves the research, design, and production of wiring harnesses, while the downstream primarily serves the NEV market, including manufacturers and the aftermarket [6]. Development Status - The NEV market in China has seen continuous growth, with production and sales reaching 11.24 million and 11.23 million units respectively from January to September 2025, marking a year-on-year increase of 35.2% and 34.9% [8]. - The increasing demand for NEVs is translating into a growing need for wiring harnesses, with the market expected to expand significantly [9]. Competitive Landscape - The NEV wiring harness market in China is characterized by foreign companies dominating the high-end market while domestic companies are accelerating their market share through local partnerships and technological advancements [10]. - Major international players like Sumitomo, Yazaki, Aptiv, and Lear hold significant shares in high-end NEV wiring harnesses, particularly in advanced products like 800V high-voltage harnesses [10]. Key Domestic Players - Companies such as Hu Guang Co., Ltd. and Yong Ding Co., Ltd. are notable players in the NEV wiring harness market, focusing on high and low voltage harnesses and achieving significant revenue from their automotive wiring harness businesses [10][11]. Future Trends - The industry is expected to focus on developing high-voltage harnesses that can handle increased voltage and current demands, with an emphasis on safety and lightweight materials [12]. - Innovations in harness structure and wiring methods will continue to evolve to reduce weight and volume, contributing to overall vehicle energy efficiency [12].