US rare earth bet in Madagascar: Ampasindava project lens for mine planners
Reviewed by Tom Sullivan
First reported on MINING.com
30 Second Briefing
Harena Rare Earths has secured up to $4.48 million from the US International Development Finance Corporation for pilot plant work, laboratory testing and environmental programmes at its Ampasindava ionic clay rare earth project on Madagascar’s northwest coast. The deposit hosts neodymium, praseodymium, dysprosium and terbium for permanent magnets, with planned output of about 4,000 tonnes per year of rare earth oxides, including 1,700 tonnes of NdPr and DyTb, targeting first production by mid‑2028 pending an exploitation permit. Harena is assessing processing in the US and Europe with MP Materials, USA Rare Earth and Solvay as potential refiners, against an estimated $150 million total development cost.
Technical Brief
- DFC commitment of up to $4.48 million is ring‑fenced for pilot plant, lab testing and environmental programmes.
- Funding is structured as early‑stage de‑risking capital to position Ampasindava for larger construction finance.
- A DFC official confirmed scope for additional debt or equity support, subject to due diligence and approvals.
- Harena expects to secure the Malagasy exploitation permit “within the next few weeks”, unlocking full project studies.
- Ionic clay mineralogy implies low‑strip, near‑surface extraction with emphasis on leach performance and environmental controls.
- US State Department explicitly frames the project as countering “opaque, predatory investments” by rival states in Africa.
- Western‑backed rare earth projects in Africa are being prioritised over copper, cobalt and lithium for supply‑chain diversification.
Our Take
The US International Development Finance Corporation appears repeatedly in our recent critical minerals coverage, backing assets from Kazakh tungsten to DRC copper–cobalt, so its support for Harena Rare Earths in Madagascar signals a deliberate multi-continent build-out of non-Chinese supply chains.
With an estimated $150 million development cost at Ampasindava and a mid-2028 horizon, the relatively modest DFC pilot funding implies Harena will likely need either a larger strategic offtaker than the existing Transamine facility or a tie-in to US-based processors such as Solvay or USA Rare Earth to reach full project finance scale.
Prepared by collating external sources, AI-assisted tools, and Geomechanics.io’s proprietary mining database, then reviewed for technical accuracy & edited by our geotechnical team.
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