---
schema_version: "secwatch.filing_event.v1"
accession: "0001104659-25-096964"
form_type: "8-K"
ticker: "TSEOF"
cik: "0001519061"
company_name: "Trinseo PLC"
filed_at: "2025-10-06T23:59:59+00:00"
generated_at: "2026-05-17T04:34:08.127104+00:00"
event_type: "other_material"
sentiment: "negative"
materiality_score: 0.85
calibrated_materiality_score: 0.85
confidence: "high"
source: SEC EDGAR
---

# Trinseo to close MMA plants in Italy, potential PS closure in Germany; suspends dividend

## Summary
- Restructuring charges $80M-$100M; annual profitability improvement targeted at $20M from MMA closures, plus $10M capex reduction.
- Cash payments $40M-$50M through 2028; closures expected by end of 2026 subject to local law requirements.
- Initiated consultation to close polystyrene production in Schkopau, Germany; potential $10M annual improvement.
- Dividend suspended indefinitely; saves ~$1.5M annually (prior quarterly $0.01/share).

## SEC filing metadata
- accession: 0001104659-25-096964
- form_type: 8-K
- ticker: TSEOF
- cik: 0001519061
- company_name: Trinseo PLC
- filed_at: 2025-10-06T23:59:59+00:00
- event_type: other_material
- sentiment: negative
- materiality_score: 0.85
- calibrated_materiality_score: 0.85
- confidence: high
- sec_items: 2.05, 7.01, 9.01
- EDGAR index: https://www.sec.gov/Archives/edgar/data/1519061/000110465925096964/0001104659-25-096964-index.htm
- EDGAR primary document: https://www.sec.gov/Archives/edgar/data/1519061/000110465925096964/tse-20251006x8k.htm

## Machine-readable alternates
- HTML: https://secwatch.observer/filing/0001104659-25-096964
- JSON: https://secwatch.observer/filing/0001104659-25-096964.json
- Plain text: https://secwatch.observer/filing/0001104659-25-096964.txt

## Source-grounded claims
- claim_id: b94b0aa89b47d991bd233532d9c48c0446cb05c5
  claim: Trinseo PLC announced a restructuring with charges of $80 million to $100 million affecting MMA production operations in Rho, Italy and ACH production operations in Porto Marghera, Italy.
  evidence_excerpt: assets. Moving forward, the company will source all MMA feedstock from third-party producers. ​ The Company expects to record total pre-tax restructuring charges of $80 million to $100 million, principally comprised of $3 million to $6 million of employee-related costs, $40 million to $46 million of asset-related charges and $37 million to $48 million
  evidence_url: https://www.sec.gov/Archives/edgar/data/1519061/000110465925096964/0001104659-25-096964-index.htm

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