en.Wedoany.com Reported - Aldoro Resources (ASX:ARN) has achieved a 72% total rare earth element (REE) extraction rate and over 99% strontium recovery in its first metallurgical tests at the Kameelburg Rare Earth and Strontium Project in Namibia.

Located in the Cretaceous Kameelburg carbonatite plug within the central Damara Orogenic Belt in northern Namibia, the Kameelburg Project demonstrated that its ore can be directly leached without pre-beneficiation, a feature that may simplify processing compared to most rare earth projects globally. Aldoro Resources Chairman Quinn Li stated that these initial metallurgical results represent a significant de-risking milestone for the Kameelburg Project, further solidifying its status as one of the world's most important undeveloped rare earth and strontium systems.

The composite sample has an in-situ grade of 1.28% total rare earth oxides and 2.67% strontium, with cerium, lanthanum, and neodymium being the primary value drivers. Single-stage extraction achieved approximately 69% rare earth recovery at 15% hydrochloric acid concentration, which increased to 72% after cumulative leaching and re-leaching tests. Strontium extraction consistently exceeded 99% across all acid leach tests, with calcium extraction exceeding 94% in primary leach tests and cumulative recovery exceeding 99% after the re-leach stage. Li noted that the exceptional strontium recovery highlights the "multi-product nature" of the Kameelburg Project. The project hosts the largest reported strontium resource globally, along with a globally significant rare earth and niobium inventory exceeding 596 million tonnes.

The company has identified clear pathways to improve recovery rates, including high-temperature leaching, mineralogical characterization using QEMSCAN analysis, finer grinding, and pre-concentration testing through flotation and gravity methods. Aldoro Resources plans to proceed with the next phase of the metallurgical program to optimize extraction parameters, evaluate pre-concentration options, and determine a process flowsheet suitable for a scoping economic study.

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