# Mitsui Chemicals and Polyplastics partner on engineering plastics marketing

Mitsui Chemicals and Polyplastics (a Daicel subsidiary) entered a contract under which Mitsui Chemicals will consign certain marketing operations for its ARLEN and AURUM engineering plastics to Polyplastics, starting January 1, 2026.

- Type: Partnership
- Announced: 2025-10-27
- Where: Japan
- Status: announced
- Products: ARLEN polyamide, AURUM polyimide, engineering plastics
- Sectors: [Plastics and Polymers](https://endata.com/sectors/plastics-polymers.md), [Automotive Components](https://endata.com/sectors/automotive-components.md), [Semiconductors and Industrial Electronics](https://endata.com/sectors/semiconductors-electronics.md)

## Companies

- [Mitsui Chemicals](https://endata.com/companies/19809.md)
- [Polyplastics Co.](https://endata.com/companies/23089.md) (partner)
- [Daicel Corp.](https://endata.com/companies/23091.md) (partner)

## Sources

- [daicel.com](https://www.daicel.com/en/news/2025/20251027_1178/), 2025-10-27: "Mitsui Chemicals will consign certain marketing operations to Polyplastics."

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