---
schema_version: "secwatch.filing_event.v1"
accession: "0001193125-25-241481"
form_type: "8-K"
ticker: "KALU"
cik: "0000811596"
company_name: "KAISER ALUMINUM CORP"
filed_at: "2025-10-16T23:59:59+00:00"
generated_at: "2026-05-17T03:38:50.610579+00:00"
event_type: "debt"
sentiment: "neutral"
materiality_score: 0.6
calibrated_materiality_score: 0.6
confidence: "high"
source: SEC EDGAR
---

# Kaiser Aluminum amends credit facility; extends maturity to 2030, ups revolver capacity

## Summary
- Maturity extended to earlier of March 1, 2028 (if 2028 notes not extended) or October 14, 2030.
- Revolver capacity increased by up to $200M plus FILO tranche; total commitments remain $575M.
- Unused line fee reduced to 0.20%–0.25% depending on average usage (previously 0.25%).
- Borrowing base includes 90% of investment-grade AR, 85% other domestic AR, 75% inventory.
- Amendment allows secured debt junior in lien priority and debt secured by non-collateral assets.

## SEC filing metadata
- accession: 0001193125-25-241481
- form_type: 8-K
- ticker: KALU
- cik: 0000811596
- company_name: KAISER ALUMINUM CORP
- filed_at: 2025-10-16T23:59:59+00:00
- event_type: debt
- sentiment: neutral
- materiality_score: 0.6
- calibrated_materiality_score: 0.6
- confidence: high
- sec_items: 1.01, 2.03, 9.01
- EDGAR index: https://www.sec.gov/Archives/edgar/data/811596/000119312525241481/0001193125-25-241481-index.htm
- EDGAR primary document: https://www.sec.gov/Archives/edgar/data/811596/000119312525241481/d33098d8k.htm

## Machine-readable alternates
- HTML: https://secwatch.observer/filing/0001193125-25-241481
- JSON: https://secwatch.observer/filing/0001193125-25-241481.json
- Plain text: https://secwatch.observer/filing/0001193125-25-241481.txt

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