---
schema_version: "secwatch.filing_event.v1"
accession: "0001062993-23-005315"
form_type: "8-K"
ticker: "UUUU"
cik: "0001385849"
company_name: "ENERGY FUELS INC"
filed_at: "2023-03-01T23:59:59+00:00"
generated_at: "2026-06-18T17:28:31.033672+00:00"
event_type: "other_material"
sentiment: "neutral"
materiality_score: 0.25
calibrated_materiality_score: 0.25
confidence: "high"
source: SEC EDGAR
---

# Energy Fuels revises Nichols Ranch and Sheep Mountain technical reports, releases Pinyon Plain PFS

## Summary
- Revised Nichols Ranch and Sheep Mountain reports correct cut-off grade calculations and typographical errors; resource/reserve estimates unchanged.
- New pre-feasibility study for Pinyon Plain Project in Arizona released as Exhibit 99.3; no specific results disclosed in filing.
- Sheep Mountain PFS (revised) outlines 12-year mine life with open pit and underground mining, heap leach processing targeting average 1.4M lbs U3O8 per year.

## SEC filing metadata
- accession: 0001062993-23-005315
- form_type: 8-K
- ticker: UUUU
- cik: 0001385849
- company_name: ENERGY FUELS INC
- filed_at: 2023-03-01T23:59:59+00:00
- event_type: other_material
- sentiment: neutral
- materiality_score: 0.25
- calibrated_materiality_score: 0.25
- confidence: high
- sec_items: 7.01, 9.01
- EDGAR index: https://www.sec.gov/Archives/edgar/data/1385849/000106299323005315/0001062993-23-005315-index.htm
- EDGAR primary document: https://www.sec.gov/Archives/edgar/data/1385849/000106299323005315/form8k.htm

## Machine-readable alternates
- HTML: https://secwatch.observer/filing/0001062993-23-005315
- JSON: https://secwatch.observer/filing/0001062993-23-005315.json
- Plain text: https://secwatch.observer/filing/0001062993-23-005315.txt

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