---
schema_version: "secwatch.filing_event.v1"
accession: "0001477932-24-001268"
form_type: "8-K"
ticker: "LTBR"
cik: "0001084554"
company_name: "LIGHTBRIDGE Corp"
filed_at: "2024-03-18T23:59:59+00:00"
generated_at: "2026-06-04T14:30:39.430574+00:00"
event_type: "other_material"
sentiment: "positive"
materiality_score: 0.45
calibrated_materiality_score: 0.45
confidence: "high"
source: SEC EDGAR
---

# Lightbridge achieves extrusion milestone for uranium-zirconium fuel samples with INL

## Summary
- Successful extrusion of coupon samples of Lightbridge Fuel alloy (depleted uranium and zirconium) at Idaho National Laboratory.
- Collaboration with INL under Strategic Partnership Project and CRADA with DOE to generate irradiation performance data.
- Extruded rod to be analyzed before using high-assay low-enriched uranium (HALEU) for future fuel samples.
- Milestone supports fuel performance modeling and regulatory licensing for commercial deployment of Lightbridge Fuel.

## SEC filing metadata
- accession: 0001477932-24-001268
- form_type: 8-K
- ticker: LTBR
- cik: 0001084554
- company_name: LIGHTBRIDGE Corp
- filed_at: 2024-03-18T23:59:59+00:00
- event_type: other_material
- sentiment: positive
- materiality_score: 0.45
- calibrated_materiality_score: 0.45
- confidence: high
- sec_items: 7.01, 9.01
- EDGAR index: https://www.sec.gov/Archives/edgar/data/1084554/000147793224001268/0001477932-24-001268-index.htm
- EDGAR primary document: https://www.sec.gov/Archives/edgar/data/1084554/000147793224001268/ltbr_8k.htm

## Machine-readable alternates
- HTML: https://secwatch.observer/filing/0001477932-24-001268
- JSON: https://secwatch.observer/filing/0001477932-24-001268.json
- Plain text: https://secwatch.observer/filing/0001477932-24-001268.txt

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