Complete Vehicle Manufacturers (OEMs / Host Plants)

Complete vehicle manufacturers, commonly referred to in the automotive industry as OEMs (Original Equipment Manufacturers) or host plants, refer to enterprises responsible for the full-cycle R&D, design, manufacturing, and assembly of complete vehicles, retailing them under their proprietary marques. Serving as the core pillar of the automotive supply chain, vehicle manufacturers act not only as the primary integrators of the end product, but also as the pivotal hub connecting upstream component vendors with downstream dealership and aftersales networks.

Definition and Role

The industry term "host plant" stems from the automotive sector's traditional emphasis on the "host unit" (namely the engine or powertrain) as the defining core component. While a modern vehicle consists of tens of thousands of individual components, complete vehicle manufacturers are far more than mere contract assemblers. Their fundamental value lies in product definition, systems engineering integration, brand positioning, and supply chain governance. They lead the in-house development of vehicle platforms, body-in-white structures, chassis systems, and powertrains, while steering the end-to-end homologation, testing, and production phases. No single carmaker in the world manufactures every part in-house; rather, they orchestrate upstream and downstream resources—integrating raw steel, semiconductor chips, and traction batteries from specialised suppliers into a fully homologated, dependable vehicle built to strict engineering standards and design philosophy.

Core Business and Operating Models

The primary operations of complete vehicle manufacturers span vehicle R&D and engineering design, manufacturing and vehicle assembly, brand marketing and retail distribution, as well as aftersales service support. Operationally, the industry is divided into established legacy carmakers with proprietary manufacturing plants (such as BYD and Geely), and emerging EV startups adopting contract manufacturing models (where licensed OEMs handle assembly lines while the marque owners retain ownership of vehicle architecture and marketing).

Chinese Automakers from a Global Perspective

China has established a massive lineup of vehicle manufacturers, successfully transitioning from volume-driven expansion to high-value, quality-led growth. Key market frontrunners include the three major state-owned automotive groups (FAW Group, Dongfeng Motor, and Changan Automobile), alongside privately owned conglomerates such as SAIC Motor, BYD, and Geely Auto.

• SAIC Motor: Achieved complete vehicle wholesale deliveries of 4.507 million units in 2025, successfully defending its position as the domestic industry leader. Anchored by its vehicle manufacturing core, the group has developed an extensive business ecosystem encompassing auto parts, mobility solutions, automotive finance, and global market operations.

• BYD: Capitalising on its vertically integrated technological dominance across the core "three-electric" systems (battery, motor, and power electronics), BYD registered over 4.6 million vehicle sales in 2025, retaining its title as China's top-selling automotive brand.

• FAW Group: Surpassed 3.3 million units in complete vehicle sales in 2025. Supported by proprietary marques such as Hongqi and Jiefang alongside joint-venture brands including Volkswagen and Audi, its cumulative historical production and sales volume has breached the 62-million-unit mark.

• Changan Automobile: Delivered a record volume of 2.91 million units in 2025, reaching a nine-year sales high as its dedicated new energy marque lineup—spearheaded by Avatr and Deepal—accelerated market penetration.

• Dongfeng Motor: Accelerated its electrification push in 2025, securing in-house mastery of proprietary "three-electric" technology, hydrogen fuel cells, and automotive-grade semiconductors, achieving new energy vehicle (NEV) sales of 860,000 units—a notable 64.4% year-on-year growth.

• Geely Auto: Recorded an all-time high in 2025, with annual sales exceeding 3.02 million units.

Concurrently, emerging smart EV players such as NIO, XPENG, Li Auto, and Leapmotor, alongside technology ecosystem enablers like Huawei's Harmony Intelligent Mobility Alliance (HIMA), are actively redefining the global automotive landscape.