Breaking Closed Barriers, Chinese Auto Components Enter Japanese Global Procurement Focus

For a long time, Japanese automakers relied on a tightly bonded 'group system' to build a relatively closed components ecosystem, with local affiliated suppliers long occupying the dominant position in procurement.

However, as the electrification transformation advances, the domestic automotive supply chain has completed technical accumulation. A batch of Chinese component companies possessing quality, cost, and delivery advantages are breaking through traditional barriers, entering the procurement lists of Japanese automakers such as Honda, Toyota, and Suzuki, gradually extending from serving domestic joint venture factories to overseas market matching, becoming a supply force that cannot be ignored in the global automotive industry.

According to a Reuters report on September 2, 2026, Honda formulated a global cost reduction plan for 2030, planning to cumulatively cut overall costs by 1.5 trillion yen. Stamped and forged parts, in-vehicle electronics, and software-defined vehicle related components were listed as key cost reduction sectors.

The report cited information from knowledgeable sources of internal Honda documents and supplier meetings. Honda required suppliers to expand the use of Made-in-China components within feasible ranges at a closed-door supplier meeting in Utsunomiya in Spring 2026, while evaluating the inclusion of Chinese suppliers into the global tier-1 supplier candidate pool.

Honda officially did not confirm the internal cost reduction target figures externally, only stating externally that the enterprise is promoting cost optimization work on the procurement side on a global scale.

After the news disclosure, the stock prices of multiple Japanese-listed local component suppliers supporting Honda declined. The capital market has already sensed it; the traditional Japanese supply system is changing.

Supply chain opening is not happening only at Honda. According to The Nikkei Shimbun, Toyota has already massively implemented domestic components on domestic pure electric models. The bZ3X led and developed by GAC Toyota has a local component share close to 90%, with smart cockpits, batteries, and perception hardware widely selecting domestic supplier products.

Toyota plans to output mature domestic component solutions to Thailand production bases starting from 2028, promoting Chinese enterprises in interiors, polymer materials, and molds to land in Southeast Asia in the form of joint venture factories, to support local new EV and hybrid models, with the goal of reducing production costs by about 30%.

There is also significant progress in the in-vehicle chip sector. Nikkei X-TECH reported in February 2026 that Toyota and Suzuki plan to equip Horizon Journey 6 automotive-grade intelligent driving chips on overseas mass-produced models outside China. Toyota uses them for ADAS systems on global main force models, while Suzuki prioritizes deployment on models in the Indian market.

In the past, the overseas automotive chip market was basically dominated by European and American enterprises. Chinese chips entering the Japanese global model selection library verify that the product reliability of domestic semiconductor enterprises has reached international automotive standards.

At present, core proprietary components related to safety still prioritize the use of original Japanese suppliers; open procurement focuses on categories such as standardized electronics, interiors, structural parts, etc. The component matching of some overseas factories is still in the project planning stage, and there is still a cycle before mass production delivery.

Procurement models are also divided into two paths: one is Japanese tier-1 suppliers purchasing Chinese components downwards, and the other is domestic enterprises directly striving for tier-1 supplier qualification. The entry barriers for the latter are higher.

Behind this round of supply chain pattern changes is the long-term accumulation of China's automotive industry. Nowadays, China has a complete full-chain components industrial cluster. In the Global Top 100 Auto Parts List, the number of listed Chinese enterprises continues to rise, covering sub-sectors such as batteries, chassis, electronics, automotive semiconductors, etc. The product consistency, development iteration speed, and cost control capabilities have already gained recognition from overseas OEMs.

Japanese automakers opening procurement is essentially a rational choice under electrification competition. For domestic component companies, being able to enter the Japanese global supply chain represents the international verification of the comprehensive strength of domestic manufacturing. However, obtaining candidate qualification does not equal stable orders; subsequently, they still have to face rigorous quality control and certification assessments.