secwatch.observer — SEC 8-K summary
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Issuer:     WESTLAKE CORP (WLK)
CIK:        0001262823
Form:       8-K
Filed at:   2025-12-15T23:59:59+00:00
Accession:  0001193125-25-318445
Event type: other_material
Sentiment:  negative
Materiality: 0.90
Item codes: 2.05, 7.01, 9.01
LLM model:  deepseek-v4-flash:cloud

Westlake approves closure of three chlorovinyl plants and styrene unit, expects $415M in pre-tax costs
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- Closure includes PVC plant in Aberdeen, MS (1B lbs/year), VCM plant in Lake Charles, LA North (910M lbs/year), and a chlor-alkali unit (825M lbs chlorine, 910M lbs caustic soda).
- Styrene plant in Lake Charles, LA (570M lbs/year) also to cease operations by end of December 2025.
- Workforce reduction of approximately 295 employees; total pre-tax costs estimated at $415M including $357M non-cash charges, $25M severance, $33M shutdown costs.
- Company expects ~$100M annual EBITDA improvement and ~$175M free cash flow savings in 2026 from these actions.
- Conference call on December 15, 2025 to discuss plan and update on PEM profitability improvement plan.

Source:
  EDGAR index:    https://www.sec.gov/Archives/edgar/data/1262823/000119312525318445/0001193125-25-318445-index.htm
  Primary doc:    https://www.sec.gov/Archives/edgar/data/1262823/000119312525318445/d798286d8k.htm
  HTML page:      https://secwatch.observer/filing/0001193125-25-318445

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