---
schema_version: "secwatch.filing_event.v1"
accession: "0001493152-25-012850"
form_type: "8-K"
ticker: "SDST"
cik: "0001831979"
company_name: "Stardust Power Inc."
filed_at: "2025-09-09T23:59:59+00:00"
generated_at: "2026-05-17T07:20:51.612410+00:00"
event_type: "other_material"
sentiment: "neutral"
materiality_score: 0.65
calibrated_materiality_score: 0.65
confidence: "high"
source: SEC EDGAR
---

# Stardust Power completes FEL-3 study for Oklahoma lithium refinery; Phase 1 capex ~$500M

## Summary
- Phase 1 capacity: 25,000 mtpa battery-grade lithium, expandable to 50,000 mtpa in Phase 2.
- Capital expenditure ~$500M for Phase 1, nearly $200M below prior estimates, with 90% probability.
- Construction timeline ~24 months from start of major work to mechanical completion.
- FEL-3 led by Primero USA; reduced contingency from 40% to lower level via 3D process model.
- Company advancing toward Final Investment Decision (FID) with independent third-party review engaged.

## SEC filing metadata
- accession: 0001493152-25-012850
- form_type: 8-K
- ticker: SDST
- cik: 0001831979
- company_name: Stardust Power Inc.
- filed_at: 2025-09-09T23:59:59+00:00
- event_type: other_material
- sentiment: neutral
- materiality_score: 0.65
- calibrated_materiality_score: 0.65
- confidence: high
- sec_items: 8.01, 9.01
- EDGAR index: https://www.sec.gov/Archives/edgar/data/1831979/000149315225012850/0001493152-25-012850-index.htm
- EDGAR primary document: https://www.sec.gov/Archives/edgar/data/1831979/000149315225012850/form8-k.htm

## Machine-readable alternates
- HTML: https://secwatch.observer/filing/0001493152-25-012850
- JSON: https://secwatch.observer/filing/0001493152-25-012850.json
- Plain text: https://secwatch.observer/filing/0001493152-25-012850.txt

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