Suminoe Synthetic Leather Production Expands in Mexico, Thailand

Suminoe Plans In-House Synthetic Leather Production

Suminoe synthetic leather production will move in-house at the company’s plants in Mexico and Thailand as it responds to automotive manufacturers seeking interior materials with stronger design appeal. Suminoe Co., Ltd. currently supplies synthetic leather procured from overseas companies and partially processed at its Mexico plant to local facilities operated by Japanese automakers. The company plans to establish a stable local supply system in both countries, allowing it to propose higher-value automotive interior products. The Mexico plant is scheduled to begin supplying synthetic leather manufactured in-house by the end of 2026, while the company plans to establish a local supply system in Thailand as early as the end of 2027.

Mexico Plant Targets Production by 2026

The Mexico facility will become the first of the two plants to supply in-house manufactured synthetic leather for automotive seat covers. Suminoe plans to begin production and supply from the plant by the end of 2026, replacing its current model of relying on synthetic leather procured from overseas companies before partial processing in Mexico. The change is intended to create a more stable local supply structure for Japanese automakers operating in the market. The company has also positioned its Mexico plant as a strategic base, with the facility having started supplying floor carpets for electric vehicles in the spring of 2025.

Thailand Supply System Planned by 2027

In Thailand, Suminoe plans to establish a system capable of supplying synthetic leather products to local Japanese automakers as early as the end of 2027. The initiative extends the company’s effort to manufacture automotive interior materials closer to the vehicle production locations they serve. By developing local production capabilities in Thailand, Suminoe intends to support a stable supply structure while responding to demand for automotive interior materials with greater design appeal. The Thailand plan is part of the same investment program covering mass production of synthetic leather at the company’s Mexico and Thailand plants.

JPY 3.16 Billion Investment Supports Mass Production

Suminoe will invest JPY 3.16 billion to support mass production of synthetic leather at its plants in Mexico and Thailand. The investment covers the production expansion needed to establish in-house manufacturing capabilities in both locations. The company’s strategy links the investment to its effort to build stable local supply systems for automotive customers and strengthen its ability to propose higher-value interior materials. The initiative also builds on the role of the Mexico plant as a strategic base for automotive-related production, including its floor carpet supply for electric vehicles that began in spring 2025.

Automotive Interior Supply Strategy

The production initiative reflects Suminoe’s response to changing requirements for automotive interiors, particularly the demand for materials that combine functional use with stronger design appeal. By manufacturing synthetic leather locally, Suminoe Co., Ltd. will have dedicated production capabilities in two important manufacturing locations for Japanese automakers. The company’s existing overseas procurement model will therefore be complemented by in-house manufacturing in Mexico and a planned local supply system in Thailand. The approach is focused specifically on synthetic leather for automotive seat covers and supports the company’s broader strategy of developing higher-value interior material proposals.

Industry Impact & Outlook

Suminoe’s investment could strengthen local sourcing capabilities for automotive interior materials in Mexico and Thailand, while giving Japanese automakers operating in those markets an additional locally manufactured supply option. The timing of the projects also creates a staged expansion, with Mexico targeted for in-house synthetic leather supply by the end of 2026 and Thailand targeted as early as the end of 2027. The initiative may become increasingly relevant as automakers continue to seek differentiated interior designs and localized supply structures, with Suminoe’s existing EV floor carpet production in Mexico providing an established foundation for its broader automotive materials strategy.

Frequently Asked Questions

When will Suminoe begin in-house synthetic leather production in Mexico?
Suminoe plans to begin supplying in-house manufactured synthetic leather from its Mexico plant by the end of 2026 for automotive seat covers. The company currently procures synthetic leather from overseas suppliers and partially processes the material at its Mexico facility before supplying local facilities of Japanese automakers. The new production system is intended to establish a more stable local supply structure and support higher-value automotive interior material proposals. Suminoe also plans a similar supply system in Thailand as early as the end of 2027, supported by a combined JPY 3.16 billion investment.