---
schema_version: "secwatch.filing_event.v1"
accession: "0001477932-25-000880"
form_type: "8-K"
ticker: "LTBR"
cik: "0001084554"
company_name: "LIGHTBRIDGE Corp"
filed_at: "2025-02-12T23:59:59+00:00"
generated_at: "2026-05-26T22:41:50.934757+00:00"
event_type: "other_material"
sentiment: "positive"
materiality_score: 0.75
calibrated_materiality_score: 0.75
confidence: "high"
source: SEC EDGAR
---

# Lightbridge achieves successful co-extrusion of nuclear fuel coupon sample at Idaho National Laboratory

## Summary
- Co-extrusion demonstration produced an 8-foot rod of uranium-zirconium alloy encased in nuclear-grade zirconium cladding.
- Milestone under Lightbridge's Strategic Partnership Project Agreement with Battelle Energy Alliance (BEA) for Idaho National Laboratory.
- Next step: produce coupon samples with enriched uranium for irradiation testing in INL's Advanced Test Reactor (ATR).
- Lightbridge plans to use the same uranium-zirconium alloy composition for its future commercial Lightbridge Fuel product.

## SEC filing metadata
- accession: 0001477932-25-000880
- form_type: 8-K
- ticker: LTBR
- cik: 0001084554
- company_name: LIGHTBRIDGE Corp
- filed_at: 2025-02-12T23:59:59+00:00
- event_type: other_material
- sentiment: positive
- materiality_score: 0.75
- calibrated_materiality_score: 0.75
- confidence: high
- sec_items: 7.01, 9.01
- EDGAR index: https://www.sec.gov/Archives/edgar/data/1084554/000147793225000880/0001477932-25-000880-index.htm
- EDGAR primary document: https://www.sec.gov/Archives/edgar/data/1084554/000147793225000880/ltbr_8k.htm

## Machine-readable alternates
- HTML: https://secwatch.observer/filing/0001477932-25-000880
- JSON: https://secwatch.observer/filing/0001477932-25-000880.json
- Plain text: https://secwatch.observer/filing/0001477932-25-000880.txt

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