---
schema_version: "secwatch.filing_event.v1"
accession: "0001104659-25-049424"
form_type: "8-K"
ticker: "LYB"
cik: "0001489393"
company_name: "LyondellBasell Industries N.V."
filed_at: "2025-05-15T23:59:59+00:00"
generated_at: "2026-05-21T04:50:56.582585+00:00"
event_type: "debt"
sentiment: "neutral"
materiality_score: 0.5
calibrated_materiality_score: 0.5
confidence: "high"
source: SEC EDGAR
---

# LyondellBasell issues $500M of 6.150% Guaranteed Notes due 2035

## Summary
- $500M aggregate principal of 6.150% Guaranteed Notes due 2035 issued May 15, 2025.
- Notes fully and unconditionally guaranteed by LyondellBasell Industries N.V.
- Issued under base indenture dated Oct 2019 and supplemental indenture May 2023.
- Offering registered on Form S-3ASR; prospectus supplement filed May 6, 2025.

## SEC filing metadata
- accession: 0001104659-25-049424
- form_type: 8-K
- ticker: LYB
- cik: 0001489393
- company_name: LyondellBasell Industries N.V.
- filed_at: 2025-05-15T23:59:59+00:00
- event_type: debt
- sentiment: neutral
- materiality_score: 0.5
- calibrated_materiality_score: 0.5
- confidence: high
- sec_items: 1.01, 2.03, 9.01
- EDGAR index: https://www.sec.gov/Archives/edgar/data/1489393/000110465925049424/0001104659-25-049424-index.htm
- EDGAR primary document: https://www.sec.gov/Archives/edgar/data/1489393/000110465925049424/tm2514631d1_8k.htm

## Machine-readable alternates
- HTML: https://secwatch.observer/filing/0001104659-25-049424
- JSON: https://secwatch.observer/filing/0001104659-25-049424.json
- Plain text: https://secwatch.observer/filing/0001104659-25-049424.txt

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