# Evonik expands HTPB production in Marl, Germany

Evonik is expanding production of hydroxyl-terminated polybutadienes (HTPB) at its Marl, Germany site, with planned startup in Q2 2027. The company has also begun planning a new production facility in Asia.

- Type: Expansion
- Announced: 2026-03-25
- Where: Marl, Germany
- Starts operating: Q2 2027
- Status: announced
- Products: hydroxyl-terminated polybutadienes (HTPB)
- Sectors: [Specialty Chemicals](https://endata.com/sectors/specialty-chemicals.md)

## Companies

- [Evonik](https://endata.com/companies/15139.md)

## Sources

- [plastnet.se](https://www.plastnet.se/article/view/1213093/specialkemikalieaktoren_bygger_ut_sin_htpbkapacitet), 2026-03-25: "Specialkemikalietillverkaren bygger ut produktionen ytterligare i Marl, med planerad driftstart under andra kvartalet 2027."

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