Japanese Automakers Accelerate Adoption of Chinese Supply Chains Amid EV-Driven Overhaul

Japanese automakers including Toyota, Nissan, and Honda are accelerating the adoption of locally sourced Chinese components for their battery electric vehicles (BEVs) in the Chinese market, fundamentally reshaping their traditionally closed supply chains centered around the "keiretsu" system. For the 2026 GAC Toyota bZ3X (marketed as the Platinum Zhi 3X in China), 65% of its components come from Chinese suppliers—matching the localization rate of the 2025 model and setting a new record for Japanese brands in China. The vehicle’s voice assistant is powered by iFlytek’s Spark AI large model; its LiDAR comes from Hesai’s ATX series; algorithms are provided by Momenta; batteries are supplied by CALB and Jiangsu Zhengli New Energy; and the domain controller is sourced from Desay SV. Over 100 Chinese suppliers are deeply involved in supplying core components. Developed under the leadership of a Chinese engineering team through a “Chief Engineer China” system, the bZ3X has sold over 100,000 units within 14 months of launch and has ranked first among joint-venture NEVs for seven consecutive months. Subsequent Toyota models—including the bZ5 and Platinum Zhi 7 (bZ7)—also extensively incorporate Chinese-made parts. Moreover, Toyota has transferred decision-making authority for China-exclusive vehicle development to its local teams, establishing a “China ONE R&D” system. Next-generation models such as the Highlander and Sienna are now led by Chinese engineers. GAC Toyota is also collaborating with Huawei, Xiaomi, and Momenta to build an AI ecosystem: the Platinum Zhi 7 features HarmonyOS Cockpit, integrates Huawei’s electric motor, and connects with Xiaomi’s ecosystem. On the Nissan side, Dongfeng Nissan’s all-electric sedan N7 significantly increased its procurement ratio of Chinese components, marking the start of its transformation into a “New Joint Venture Power.” At the 2026 Beijing Auto Show, Dongfeng Nissan unveiled the NX8—the first BEV with range extender under its N-series—and announced entry into the “New Joint Venture Power 2.0” phase. Nissan has also established a “Total Delivered Cost Transformation” (TdC) department to adopt Chinese-style operational methods, focusing on resolving component production compatibility issues. Honda, too, announced a strategic shift in May 2026, planning to widely adopt standardized local Chinese components and directly apply Chinese technologies in emerging fields, leveraging platforms from GAC and Dongfeng to launch new energy vehicles. Previously, Honda’s BEV sales in China had been sluggish—totaling fewer than 300 units in February 2026 and less than 20,000 units over the past 12 months. Key drivers behind Japanese automakers’ pivot toward Chinese supply chains include: Chinese components costing 30–40% less than those from Japanese suppliers; a lead time from order to mass production of approximately 10 months—significantly faster than the 18+ months typical for Japanese suppliers; and a markedly narrowed quality gap, with some Chinese suppliers now matching or approaching Japanese standards. Industry analysts note that Chinese suppliers’ competitive edge lies in a systemic advantage combining cost efficiency, responsiveness, engineering capability, and industrial synergy. This shift is disrupting traditional Japanese supply chains. NHK Spring has liquidated its seat subsidiary in Hubei and its sales company in Guangdong, while Yazaki Corporation is phasing out its Guangdong factory. Some Japanese suppliers are now seeking new business from Chinese automakers—for example, Toyota Boshoku supplies airbags to IM Motors, and Musashi Seimitsu provides suspension and steering components for BYD MPVs. The supply chain restructuring extends beyond China. Toyota plans to begin using Chinese components in its Southeast Asian production bases starting in 2028 and has already facilitated a joint venture between Wuhu Yuefei—a Chinese interior materials supplier—and a local Thai firm. Future Southeast Asian EVs will be built on multi-path new energy platforms, targeting a 30% reduction in costs. This transitional window presents a historic opportunity for Chinese component makers, though long-term sustainability hinges on their ability to establish technological moats and deepen collaborative capabilities. Industry observers believe the future landscape will likely evolve into a complementary Sino-Japanese partnership: Chinese firms dominating core components for electrification and intelligence, while Japanese companies retain strengths in precision manufacturing and chassis tuning.