---
schema_version: "secwatch.filing_event.v1"
accession: "0001104659-25-003924"
form_type: "8-K"
ticker: "TSEOF"
cik: "0001519061"
company_name: "Trinseo PLC"
filed_at: "2025-01-16T23:59:59+00:00"
generated_at: "2026-05-27T23:57:58.337838+00:00"
event_type: "debt"
sentiment: "neutral"
materiality_score: 0.75
calibrated_materiality_score: 0.75
confidence: "high"
source: SEC EDGAR
---

# Trinseo exchange offer secures 99.88% participation; 2025 note redemption on track

## Summary
- $446.5M (99.88%) of 5.125% 2029 notes tendered for new 7.625% secured notes due 2029.
- Exchange ratio: $850 new notes per $1,000 existing; new aggregate principal ~$379.5M.
- Consents obtained to amend indenture, removing restrictive covenants and releasing guarantees.
- Supplemental notice for full redemption of 5.375% 2025 notes; condition expected Jan 17, 2025.
- Settlement and redemption expected Jan 17, 2025, subject to TSA closing conditions.

## SEC filing metadata
- accession: 0001104659-25-003924
- form_type: 8-K
- ticker: TSEOF
- cik: 0001519061
- company_name: Trinseo PLC
- filed_at: 2025-01-16T23:59:59+00:00
- event_type: debt
- sentiment: neutral
- materiality_score: 0.75
- calibrated_materiality_score: 0.75
- confidence: high
- sec_items: 7.01, 8.01, 9.01
- EDGAR index: https://www.sec.gov/Archives/edgar/data/1519061/000110465925003924/0001104659-25-003924-index.htm
- EDGAR primary document: https://www.sec.gov/Archives/edgar/data/1519061/000110465925003924/tm253485d1_8k.htm

## Machine-readable alternates
- HTML: https://secwatch.observer/filing/0001104659-25-003924
- JSON: https://secwatch.observer/filing/0001104659-25-003924.json
- Plain text: https://secwatch.observer/filing/0001104659-25-003924.txt

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