Tokyo-headquartered Teijin Frontier is to expand its production capacity for high-tenacity recycled polyester filament yarn used in industrial applications such as tyre cords, reinforcements for rubber products and seat belts.

The expansion at Teijin Polyester (TPL) in Pathumthani, Thailand, will begin in November 2025 and is expected to increase production by an annual 620 tons via improvements in upstream equipment.  

The demand for recycled polyester filament yarn for industrial applications is increasing due to strong requirements for circularity, such as the European Union’s End-of-Life Vehicles (ELV) regulation announced in 2023. Additionally, the need for high-performance polyester filament yarns with enhanced functionality, such as high tenacity and flame resistance, is growing in response to safety improvements in industrial and automotive parts.

Teijin Frontier currently produces these yarns at TPL but limitations in raw yarn production capacity have made it difficult to increase output while also manufacturing functional polyester filament yarns for industrial applications using the same equipment.

 The company plans to widely market these yarns domestically and internationally, including within the Teijin Frontier group. In the future, the upgraded equipment will also be used to produce newly developed high-tenacity recycled variants.

 www.teijin.co.jp