# Polyplastics nears completion of COC plant in Leuna, Germany

Polyplastics is nearing completion of a new 25,000-ton/yr COC production facility in Leuna, Germany. Commercial start-up is expected by Q2 2026, more than doubling current output.

- Type: New facility
- Announced: 2025-10-01
- Where: Leuna, Germany, Germany
- Starts operating: Q2 2026
- Status: under construction
- Capacity: 25,000 tons/year
- Products: TOPAS COC (cyclic olefin copolymer)
- Sectors: [Plastics and Polymers](https://endata.com/sectors/plastics-polymers.md)

## Companies

- [Polyplastics Co.](https://endata.com/companies/23089.md)
- [Topas Advanced Polymers GmbH](https://endata.com/companies/23090.md) (partner)

## Sources

- [polymerupdate.com](https://www.polymerupdate.com/PressRelease/Details/37337), 2025-10-01: "Construction of a new COC production facility in Leuna, Germany, is nearly complete."
- [industrysourcing.com](https://www.industrysourcing.com/article/470753), 2025-10-10: "Construction of a new COC production facility in Leuna, Germany, is nearly complete. Commercial start-up of the new 25,000-ton/yr plant is expected by second quarter 2026."

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