---
schema_version: "secwatch.filing_event.v1"
accession: "0000072162-25-000030"
form_type: "8-K"
ticker: "NL"
cik: "0000072162"
company_name: "NL INDUSTRIES INC"
filed_at: "2025-09-15T23:59:59+00:00"
generated_at: "2026-05-17T06:41:44.787557+00:00"
event_type: "debt"
sentiment: "neutral"
materiality_score: 0.55
calibrated_materiality_score: 0.55
confidence: "high"
source: SEC EDGAR
---

# NL Industries affiliate Kronos International issues €75M additional 9.50% Senior Secured Notes due 2029

## Summary
- Issuer Kronos International issued €75M additional 9.50% Senior Secured Notes due 2029 at issue price 105%.
- Interest accrues from Sept 15, 2025; first payment March 15, 2026; existing guarantees and collateral reaffirmed.
- Notes issued under Third Supplemental Indenture consolidating with existing €351.174M notes of same series.
- NL Industries discloses this direct financial obligation via incorporation by reference to Kronos Worldwide's 8-K.

## SEC filing metadata
- accession: 0000072162-25-000030
- form_type: 8-K
- ticker: NL
- cik: 0000072162
- company_name: NL INDUSTRIES INC
- filed_at: 2025-09-15T23:59:59+00:00
- event_type: debt
- sentiment: neutral
- materiality_score: 0.55
- calibrated_materiality_score: 0.55
- confidence: high
- sec_items: 1.01, 2.03, 9.01
- EDGAR index: https://www.sec.gov/Archives/edgar/data/72162/000007216225000030/0000072162-25-000030-index.htm
- EDGAR primary document: https://www.sec.gov/Archives/edgar/data/72162/000007216225000030/nl-20250915x8k.htm

## Machine-readable alternates
- HTML: https://secwatch.observer/filing/0000072162-25-000030
- JSON: https://secwatch.observer/filing/0000072162-25-000030.json
- Plain text: https://secwatch.observer/filing/0000072162-25-000030.txt

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