---
schema_version: "secwatch.filing_event.v1"
accession: "0001104659-25-119859"
form_type: "8-K"
ticker: "TSEOF"
cik: "0001519061"
company_name: "Trinseo PLC"
filed_at: "2025-12-10T23:59:59+00:00"
generated_at: "2026-05-16T13:38:17.028726+00:00"
event_type: "other_material"
sentiment: "negative"
materiality_score: 0.6
calibrated_materiality_score: 0.6
confidence: "high"
source: SEC EDGAR
---

# Trinseo approves restructuring plan to close PS plant in Schkopau, expects $30-40M charges

## Summary
- Permanent closure of polystyrene production in Schkopau, Germany; consolidation to Tessenderlo, Belgium.
- Total pre-tax restructuring charges estimated at $30M to $40M (employee $3-5M, asset $10-14M, exit $15-21M).
- Future cash payments of $18M to $24M expected, substantially by end of 2028.
- Annualized profitability improvement of ~$10M expected beginning in 2026.
- Actions start Q4 2025, completion by end of 2028, subject to local law requirements.

## SEC filing metadata
- accession: 0001104659-25-119859
- form_type: 8-K
- ticker: TSEOF
- cik: 0001519061
- company_name: Trinseo PLC
- filed_at: 2025-12-10T23:59:59+00:00
- event_type: other_material
- sentiment: negative
- materiality_score: 0.6
- calibrated_materiality_score: 0.6
- confidence: high
- sec_items: 2.05
- EDGAR index: https://www.sec.gov/Archives/edgar/data/1519061/000110465925119859/0001104659-25-119859-index.htm
- EDGAR primary document: https://www.sec.gov/Archives/edgar/data/1519061/000110465925119859/tse-20251205x8k.htm

## Machine-readable alternates
- HTML: https://secwatch.observer/filing/0001104659-25-119859
- JSON: https://secwatch.observer/filing/0001104659-25-119859.json
- Plain text: https://secwatch.observer/filing/0001104659-25-119859.txt

## Source-grounded claims
- claim_id: fd12a448318340c862cc3dcfefe0304964ae863f
  claim: Trinseo PLC announced a restructuring with charges of $30 million to $40 million affecting polystyrene ("PS") production operations in Schkopau, Germany with consolidation of remaining PS operations in Tessenderlo, Belgium.
  evidence_excerpt: Germany with consolidation of remaining PS operations in Tessenderlo, Belgium (the “PS Restructuring Plan”). The Company expects to record total pre-tax restructuring charges of $30 million to $40 million, principally comprised of $3 million to $5 million of employee-related costs, $10 million to $14 million of asset-related charges and $15 million to $21 million
  evidence_url: https://www.sec.gov/Archives/edgar/data/1519061/000110465925119859/0001104659-25-119859-index.htm

This AI-assisted summary is a reading aid. Review the linked SEC EDGAR filing before relying on any specific claim.