---
schema_version: "secwatch.filing_event.v1"
accession: "0001262823-24-000002"
form_type: "8-K"
ticker: "WLK"
cik: "0001262823"
company_name: "WESTLAKE CORP"
filed_at: "2024-02-06T23:59:59+00:00"
generated_at: "2026-06-06T07:47:46.950067+00:00"
event_type: "litigation"
sentiment: "negative"
materiality_score: 0.65
calibrated_materiality_score: 0.65
confidence: "high"
source: SEC EDGAR
---

# Westlake settles lawsuits from 2021/2022 incidents for $382M; expects $150M Q4 charge due to insurance dispute

## Summary
- Settlements total ~$382 million to resolve lawsuits related to Petro 2 flash fire (Sept 2021) and EDC storage tank explosion (Jan 2022).
- Approximately $150 million of settlement not currently covered by insurers; company disputes coverage and will pursue recovery.
- Company expects to record a charge of ~$150 million in Q4 2023 reflecting disputed portion.
- Certain excess insurers claim insufficient exhaustion of retentions; Westlake disagrees with their position.

## SEC filing metadata
- accession: 0001262823-24-000002
- form_type: 8-K
- ticker: WLK
- cik: 0001262823
- company_name: WESTLAKE CORP
- filed_at: 2024-02-06T23:59:59+00:00
- event_type: litigation
- sentiment: negative
- materiality_score: 0.65
- calibrated_materiality_score: 0.65
- confidence: high
- sec_items: 2.02
- EDGAR index: https://www.sec.gov/Archives/edgar/data/1262823/000126282324000002/0001262823-24-000002-index.htm
- EDGAR primary document: https://www.sec.gov/Archives/edgar/data/1262823/000126282324000002/wlk-20240206.htm

## Machine-readable alternates
- HTML: https://secwatch.observer/filing/0001262823-24-000002
- JSON: https://secwatch.observer/filing/0001262823-24-000002.json
- Plain text: https://secwatch.observer/filing/0001262823-24-000002.txt

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