---
schema_version: "secwatch.filing_event.v1"
accession: "0000072162-25-000023"
form_type: "8-K"
ticker: "NL"
cik: "0000072162"
company_name: "NL INDUSTRIES INC"
filed_at: "2025-07-17T23:59:59+00:00"
generated_at: "2026-05-18T06:04:16.560114+00:00"
event_type: "other"
sentiment: "neutral"
materiality_score: 0.3
calibrated_materiality_score: 0.3
confidence: "low"
source: SEC EDGAR
---

# NL Industries incorporates Kronos Worldwide's credit agreement amendment dated July 17, 2025

## Summary
- Kronos Worldwide, an affiliate, entered into a Fourth Amendment to its Credit Agreement on July 17, 2025.
- The amendment involves Kronos Worldwide, subsidiaries, and Wells Fargo Bank as administrative agent.
- This disclosure is incorporated by reference into NL Industries' 8-K for Items 1.01 and 2.03.
- No specific financial terms of the amendment are provided in this filing.

## SEC filing metadata
- accession: 0000072162-25-000023
- form_type: 8-K
- ticker: NL
- cik: 0000072162
- company_name: NL INDUSTRIES INC
- filed_at: 2025-07-17T23:59:59+00:00
- event_type: other
- sentiment: neutral
- materiality_score: 0.3
- calibrated_materiality_score: 0.3
- confidence: low
- sec_items: 1.01, 2.03, 9.01
- EDGAR index: https://www.sec.gov/Archives/edgar/data/72162/000007216225000023/0000072162-25-000023-index.htm
- EDGAR primary document: https://www.sec.gov/Archives/edgar/data/72162/000007216225000023/nl-20250717x8k.htm

## Machine-readable alternates
- HTML: https://secwatch.observer/filing/0000072162-25-000023
- JSON: https://secwatch.observer/filing/0000072162-25-000023.json
- Plain text: https://secwatch.observer/filing/0000072162-25-000023.txt

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