---
schema_version: "secwatch.filing_event.v1"
accession: "0001262823-25-000056"
form_type: "8-K"
ticker: "WLK"
cik: "0001262823"
company_name: "WESTLAKE CORP"
filed_at: "2025-08-26T23:59:59+00:00"
generated_at: "2026-05-17T09:53:51.818553+00:00"
event_type: "m_and_a"
sentiment: "positive"
materiality_score: 0.7
calibrated_materiality_score: 0.7
confidence: "high"
source: SEC EDGAR
---

# Westlake agrees to acquire ACI compounding solutions for EUR 210M annual sales

## Summary
- Acquires global compounding solutions businesses of Portugal-based ACI/Perplastic Group.
- ACI's trailing twelve-month net sales through Dec 31, 2024: approximately EUR 210 million.
- Four production facilities located in Mexico, Portugal, Romania and Tunisia.
- Transaction expected to close in early 2026, subject to customary regulatory approvals.
- Business will be integrated into Westlake's Housing & Infrastructure Products segment.

## SEC filing metadata
- accession: 0001262823-25-000056
- form_type: 8-K
- ticker: WLK
- cik: 0001262823
- company_name: WESTLAKE CORP
- filed_at: 2025-08-26T23:59:59+00:00
- event_type: m_and_a
- sentiment: positive
- materiality_score: 0.7
- calibrated_materiality_score: 0.7
- confidence: high
- sec_items: 7.01, 9.01
- EDGAR index: https://www.sec.gov/Archives/edgar/data/1262823/000126282325000056/0001262823-25-000056-index.htm
- EDGAR primary document: https://www.sec.gov/Archives/edgar/data/1262823/000126282325000056/wlk-20250826.htm

## Machine-readable alternates
- HTML: https://secwatch.observer/filing/0001262823-25-000056
- JSON: https://secwatch.observer/filing/0001262823-25-000056.json
- Plain text: https://secwatch.observer/filing/0001262823-25-000056.txt

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