VANCOUVER, BC, Dec. 11, 2025 /PRNewswire/ – Century Lithium Corp. (TSXV: LCE) (OTCQX: CYDVF) (Frankfurt: C1Z) (“Century Lithium” or “the Company”) is pleased to provide further details regarding its recent news release on the recovery of rare earth elements (“REEs”) from its 100%-owned Angel Island Lithium Project in Nevada, USA. Testing using the Company’s patent-pending chloride-based process combined with targeted ion-exchange demonstrated both potentially significant levels of REEs in solution and exceptionally high recoveries of REEs in ion-exchange. These results reinforce the opportunity for REEs to become a strategically important by-product alongside Angel Island’s primary commodity, lithium carbonate and secondary revenue stream from the sales of sodium hydroxide.
“We are very encouraged by these findings,” stated Bill Willoughby, President and CEO of Century Lithium. “From assays, the claystone sample used for testing contained 0.024% total rare earth oxides (“TREO”). Our ability to recover these elements efficiently from solution and in parallel with lithium is a significant accomplishment by our team. At the scale of our planned operations, these levels of REE would contribute meaningfully to North America’s critical mineral supply chain and revenue streams from Angel Island.”
The test work on the REEs was conducted using material taken from the 500-tonne bulk sample collected from Angel Island. The results listed below are representative of the bulk sample and should not be assumed representative of the Angel Island lithium claystone deposit as a whole.
The claystone material assayed 1101 ppm lithium and 239 ppm (0.024%) TREO. The REE distribution of the sample consists of approximately 75% light rare earth elements and 25% yttrium and heavy rare earth elements. Chloride leaching of the sample yielded solution concentrations of 210 mg/l lithium and 36 mg/l TREO, indicating that the REEs enter solution under the same conditions as used for lithium extraction.
Two ion-exchange (“IX”) media were tested for recovery of REEs from the pregnant leach solution. Both media demonstrated high recovery of all REEs and yttrium. The table below summarizes the feed value, concentrations in the leach solution, and final IX recovery for selected elements.
Element * | Feed (ppm) | Solution … |
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