# Asahi Kasei Advance and Teijin Frontier to merge into joint venture

Asahi Kasei and Teijin have agreed to merge Asahi Kasei Advance into Teijin Frontier, forming a joint venture with Teijin holding 80% and Asahi Kasei 20%, effective October 1, 2026. The integration combines trading and manufacturing functions in fibers and textiles.

- Type: Acquisition
- Announced: 2025-12-01
- Where: Japan
- Status: announced
- Products: fibers, chemical products, construction materials, high-performance fibers
- Sectors: [Industrial Textiles](https://endata.com/sectors/industrial-textiles.md)

## Companies

- [Asahi Kasei](https://endata.com/companies/8888.md) (acquirer)
- [Asahi Kasei](https://endata.com/companies/8888.md) (investor)
- [Asahi Kasei](https://endata.com/companies/8888.md) (partner)
- [Teijin](https://endata.com/companies/19925.md) (acquirer)
- [Teijin](https://endata.com/companies/19925.md) (investor)
- [Teijin Frontier](https://endata.com/companies/23526.md) (acquirer)
- [Teijin Frontier](https://endata.com/companies/23526.md) (target)
- [Asahi Kasei Advance](https://endata.com/companies/59649.md) (target)

## Sources

- [pressnetwork.de](https://pressnetwork.de/asahi-kasei-advance-and-teijin-frontier-to-integrate-businesses-for-sustainable-growth/), 2025-12-01: "The purpose of the integration announced today is to combine the business platforms, sales networks, and customer bases of Teijin Frontier and Asahi Kasei Advance."
- [texdata.com](https://www.texdata.com/news/Man-MadeFibers/22332.html), 2025-12-04: "Teijin Limited and Asahi Kasei Corporation have signed a definitive agreement to integrate their textile subsidiaries Teijin Frontier Co., Ltd. and Asahi Kasei Advance Corporation."
- [worldoftechnicaltextile.com](https://worldoftechnicaltextile.com/asahi-kasei-advance-and-teijin-frontier-to-integrate-businesses-for-sustainable-growth/), 2025-12-04: "The purpose of the integration announced today is to combine the business platforms, sales networks, and customer bases of Teijin Frontier and Asahi Kasei Advance to drive sustainable growth and maximize corporate value."

---
Data from Endata (https://endata.com/). Announcements are summarized from public sources and may be incomplete; check the linked originals.