---
schema_version: "secwatch.filing_event.v1"
accession: "0000950170-23-033389"
form_type: "8-K"
ticker: "FEAM"
cik: "0001888654"
company_name: "5E Advanced Materials, Inc."
filed_at: "2023-07-18T23:59:59+00:00"
generated_at: "2026-06-13T07:18:16.703061+00:00"
event_type: "litigation"
sentiment: "negative"
materiality_score: 0.7
calibrated_materiality_score: 0.7
confidence: "high"
source: SEC EDGAR
---

# 5E sues Matrix Service for breach of contract over boron facility; hires new contractors

## Summary
- Filed complaint July 17, 2023 in U.S. District Court for Central District of California against Matrix Service Inc.
- Matrix demobilized from small-scale boron facility project due to repeated cost overruns and schedule delays.
- New specialty contractors hired to correct Matrix's outstanding issues and complete last-mile construction.
- Company seeks damages for cost overruns, delays, and system defects rectified at 5E's expense.
- Guidance reiterated: boric acid production on track with EPA injection authorization as final condition.

## SEC filing metadata
- accession: 0000950170-23-033389
- form_type: 8-K
- ticker: FEAM
- cik: 0001888654
- company_name: 5E Advanced Materials, Inc.
- filed_at: 2023-07-18T23:59:59+00:00
- event_type: litigation
- sentiment: negative
- materiality_score: 0.7
- calibrated_materiality_score: 0.7
- confidence: high
- sec_items: 8.01, 9.01
- EDGAR index: https://www.sec.gov/Archives/edgar/data/1888654/000095017023033389/0000950170-23-033389-index.htm
- EDGAR primary document: https://www.sec.gov/Archives/edgar/data/1888654/000095017023033389/feam-20230717.htm

## Machine-readable alternates
- HTML: https://secwatch.observer/filing/0000950170-23-033389
- JSON: https://secwatch.observer/filing/0000950170-23-033389.json
- Plain text: https://secwatch.observer/filing/0000950170-23-033389.txt

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