---
schema_version: "secwatch.filing_event.v1"
accession: "0001193125-25-174941"
form_type: "8-K"
ticker: "FEAM"
cik: "0001888654"
company_name: "5E Advanced Materials, Inc."
filed_at: "2025-08-07T23:59:59+00:00"
generated_at: "2026-05-17T18:24:45.992518+00:00"
event_type: "other_material"
sentiment: "positive"
materiality_score: 0.85
calibrated_materiality_score: 0.85
confidence: "high"
source: SEC EDGAR
---

# 5E Advanced Materials publishes Fort Cady PFS: $725M pre-tax NPV, 19.2% IRR, 39.5-year mine life

## Summary
- Phase 1 reserves total 5.4M tons boric acid at 8.03% B2O3, supporting 39.5-year mine life.
- Pre-tax NPV7 of US$724.8M with 19.2% unlevered IRR; after-tax NPV7 US$469M, IRR 15.9%.
- Initial capital cost $435M (incl. $55M contingency) for 130,000 short tons/yr boric acid plant.
- All-in sustaining cash cost $554.80/ton boric acid; by-products (CaCl2, gypsum) contribute ~6% revenue.
- Mining permits in place; targeted large-scale commercial production in 2028.

## SEC filing metadata
- accession: 0001193125-25-174941
- form_type: 8-K
- ticker: FEAM
- cik: 0001888654
- company_name: 5E Advanced Materials, Inc.
- filed_at: 2025-08-07T23:59:59+00:00
- event_type: other_material
- sentiment: positive
- materiality_score: 0.85
- calibrated_materiality_score: 0.85
- confidence: high
- sec_items: 7.01, 8.01, 9.01
- EDGAR index: https://www.sec.gov/Archives/edgar/data/1888654/000119312525174941/0001193125-25-174941-index.htm
- EDGAR primary document: https://www.sec.gov/Archives/edgar/data/1888654/000119312525174941/d932700d8k.htm

## Machine-readable alternates
- HTML: https://secwatch.observer/filing/0001193125-25-174941
- JSON: https://secwatch.observer/filing/0001193125-25-174941.json
- Plain text: https://secwatch.observer/filing/0001193125-25-174941.txt

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