---
schema_version: "secwatch.filing_event.v1"
accession: "0001262823-25-000043"
form_type: "8-K"
ticker: "WLK"
cik: "0001262823"
company_name: "WESTLAKE CORP"
filed_at: "2025-06-17T23:59:59+00:00"
generated_at: "2026-05-19T04:14:57.158405+00:00"
event_type: "other_material"
sentiment: "negative"
materiality_score: 0.75
calibrated_materiality_score: 0.75
confidence: "high"
source: SEC EDGAR
---

# Westlake plans full closure of Pernis facility; expects EUR 190M pre-tax costs

## Summary
- Plans to close entire Pernis facility (AC, ECH, LER, BPA units) in the Netherlands; consultations with works councils started June 13, 2025.
- Total pre-tax closure costs estimated at EUR 190M: EUR 30M severance for ~230 employees and EUR 160M environmental/shutdown costs.
- Substantially all charges expected in Q2 2025; cash outflows will extend over several years after closure.
- Will supply LER and BPA customers from Deer Park, Texas facility after Pernis shutdown.
- Previously mothballed AC and ECH units in July 2024; now entire facility cessation anticipated in 2025.

## SEC filing metadata
- accession: 0001262823-25-000043
- form_type: 8-K
- ticker: WLK
- cik: 0001262823
- company_name: WESTLAKE CORP
- filed_at: 2025-06-17T23:59:59+00:00
- event_type: other_material
- sentiment: negative
- materiality_score: 0.75
- calibrated_materiality_score: 0.75
- confidence: high
- sec_items: 2.05
- EDGAR index: https://www.sec.gov/Archives/edgar/data/1262823/000126282325000043/0001262823-25-000043-index.htm
- EDGAR primary document: https://www.sec.gov/Archives/edgar/data/1262823/000126282325000043/wlk-20250617.htm

## Machine-readable alternates
- HTML: https://secwatch.observer/filing/0001262823-25-000043
- JSON: https://secwatch.observer/filing/0001262823-25-000043.json
- Plain text: https://secwatch.observer/filing/0001262823-25-000043.txt

## Key facts
- Restructurings & Charges
  WESTLAKE CORP announced a restructuring with charges of approximately EUR 190 million affecting Pernis facility (approximately 230 employees).
  - Type: restructuring
  - Charge: approximately EUR 190 million
  - Affected area: Pernis facility
  - Headcount: approximately 230 employees
  source text: On June 17, 2025, the Company notified the affected employees at the Pernis facility of the Company's plan. The anticipated closure of the entire Pernis facility would take place after the conclusion of the consultations with local works councils and unions. In addition to the previous charges related to the July 2024 mothballing, the Company expects it would incur total pre-tax costs of approximately EUR 190 million related to the closure of the Pernis facility.
  evidence_url: https://www.sec.gov/Archives/edgar/data/1262823/000126282325000043/0001262823-25-000043-index.htm

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