---
schema_version: "secwatch.filing_event.v1"
accession: "0001104659-24-127417"
form_type: "8-K"
ticker: "TSEOF"
cik: "0001519061"
company_name: "Trinseo PLC"
filed_at: "2024-12-11T23:59:59+00:00"
generated_at: "2026-05-29T04:42:18.512197+00:00"
event_type: "other_material"
sentiment: "neutral"
materiality_score: 0.3
calibrated_materiality_score: 0.3
confidence: "low"
source: SEC EDGAR
---

# Trinseo enters Transaction Support Agreement; material terms undisclosed in filing

## Summary
- Trinseo and certain subsidiaries entered a Transaction Support Agreement with supporting creditors on December 9, 2024.
- The agreement is attached as Exhibit 10.1 with redacted schedules, exhibits, and terms per SEC rules.
- No specific financial or operational details are provided in the current filing to assess impact.
- The company will supply omitted materials to the SEC or its staff upon request.

## SEC filing metadata
- accession: 0001104659-24-127417
- form_type: 8-K
- ticker: TSEOF
- cik: 0001519061
- company_name: Trinseo PLC
- filed_at: 2024-12-11T23:59:59+00:00
- event_type: other_material
- sentiment: neutral
- materiality_score: 0.3
- calibrated_materiality_score: 0.3
- confidence: low
- sec_items: 1.01, 9.01
- EDGAR index: https://www.sec.gov/Archives/edgar/data/1519061/000110465924127417/0001104659-24-127417-index.htm
- EDGAR primary document: https://www.sec.gov/Archives/edgar/data/1519061/000110465924127417/tm2430477d2_8k.htm

## Machine-readable alternates
- HTML: https://secwatch.observer/filing/0001104659-24-127417
- JSON: https://secwatch.observer/filing/0001104659-24-127417.json
- Plain text: https://secwatch.observer/filing/0001104659-24-127417.txt

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