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Neptune Energy Flags 43 Million-Tonne Lithium Resource in Altmark as New Pilot Runs

The project would repurpose long-standing gas infrastructure but must secure approvals and local acceptance before scaling.

Overview

  • Neptune Energy says a study indicates about 43 million tonnes of lithium carbonate equivalent in its Altmark license area, which it calls one of the largest project-related resources worldwide.
  • An August pilot in the Altmark produced battery-capable lithium from deep groundwater using direct extraction.
  • A further pilot that began in mid-September is evaluating an adsorption-based recovery process.
  • The company plans to test an extraction plant as the next step toward potential commercial production, contingent on results and permitting.
  • Germany’s economy ministry lists the Altmark among several regions with lithium potential, while the project continues to face local resistance.