Northwire Canada EditionTuesday, July 14, 2026
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Technical Study Routine +

AE Fuels Achieves 95-99% Manganese Recovery and Produces Battery-Grade HPMSM Crystals from Continuous Mini-Pilot Testing

AE Fuels validates its manganese purification pathway, though cash burn and dilution risks limit near-term upside potential for the project.

By The Northwire Desk — AI Analysis Jun 23, 2026 · 08:01 AEF · 0.17 AE Fuels Corporation
Executive Summary
  • AE Fuels Corporation announced results from CSIRO mini-pilot testing demonstrating a scalable continuous purification pathway for battery-grade high-purity manganese sulphate monohydrate (HPMSM).
  • The program achieved manganese recoveries of 95% to 99% under sustained continuous operating conditions.
  • Impurity control was validated, with calcium, magnesium, and other contaminants reduced below battery-grade limits, alongside effective phase separation and no crud formation.
  • Successful batch crystallization produced HPMSM crystals meeting commercial battery-grade specifications.
  • The results validate a key technical component of the South Woodie Woodie Manganese Project development pathway.
  • Next phase involves pilot testing utilizing feed liquors from bulk sample material collected at the South Woodie Woodie Contact deposit.
  • The company maintains optionality for downstream electrolytic manganese metal (EMM) and electrolytic manganese dioxide (EMD) production.
  • This update directly follows the February 2026 Stage 3 research agreement with CSIRO and aligns with the mid-2027 Pre-Feasibility Study (PFS) timeline.
Material Impact
  • The announcement represents a technical de-risking milestone rather than a commercial or financial inflection point.
  • It confirms the viability of the continuous solvent extraction and crystallization flowsheet, which is a prerequisite for the planned PFS.
  • The news is incremental and expected, serving as a direct follow-up to the February 2026 Stage 3 testwork announcement.
  • No new capital was raised, no offtake agreements were signed, and no changes to the development timeline or capital expenditure requirements were disclosed.
  • Market impact is likely muted as junior exploration companies routinely publish positive metallurgical updates that do not immediately translate to revenue or reduced dilution risk.
  • The validation strengthens the technical narrative for the PFS but does not alter the company's immediate liquidity position or execution risk profile.
AEF · Price
Company Overview
  • AE Fuels Corporation is a critical minerals developer focused on building a US-aligned, vertically integrated supply chain for battery-grade manganese and fluorspar-hydrofluoric acid.
  • Flagship Project: South Woodie Woodie Manganese Project in the Eastern Pilbara, Western Australia. The company acquired 100% ownership from Trek Metals in January 2026.
  • Resource Base: NI 43-101 inferred resource of 11.3 million tonnes at 15.0% Mn (10.1% cut-off) across 517.5 km².
  • Strategic Focus: Targeting North American EV and energy storage markets to reduce foreign dependency for critical battery materials. The project aims to produce battery-grade HPMSM with optionality for EMM and EMD.
  • Secondary Asset: Fluorite Ridge Project in New Mexico, expanded to 81 mining lode claims (1,673 acres) to support domestic US fluorspar and hydrofluoric acid supply chains.
  • Development Timeline: Pre-Feasibility Study targeted for mid-2027.
Read the original news release →

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