Aclara Introduces Super Pure Rare Earth Carbonate ("SPREC")

About this update from Aclara Resources, Inc.

TORONTO, ON / ACCESS Newswire / June 29, 2026 / Aclara Resources Inc. ("Aclara" or the "Company") (TSX:ARA) is pleased to announce the successful development of Super Pure Rare Earth Carbonate ("SPREC"), a rare earth carbonate product containing approximately 99% of rare earths content, representing a significant advancement over conventional Mixed Rare Earth Carbonate ("MREC"). SPREC has been developed through Aclara's pilot plant in Santiago, Chile, where the Company is fine-tuning its processing technology. This new stage is intended to be applied to the Carina Project in Brazil and the Penco Module in Chile. The innovation leverages its solvent extraction ("SX") know-how developed through Aclara's U.S. downstream separation platform and applies it upstream within its Circular Mineral Harvesting ("CMH") process. The resulting product will be a carbonate of unique quality and heavy rare earths concentration, projected to be markedly reliable during its separation into rare earth oxides. The CAPEX and OPEX of the process are not expected to be material when added to the CMH process. Compared with conventional MREC, SPREC is expected to offer several strategic and technical advantages, including: By upgrading the quality of its intermediate product at the source, the Company expects to improve the efficiency, flexibility and competitiveness of its downstream processing operations. Aclara will continue advancing pilot-scale validation and process optimization in Santiago as part of its broader engineering and development work for the Carina Project and Penco Module. The Company expects SPREC to become the standard intermediate rare earth product produced from both projects upon commencement of commercial operations. Ramón Barúa, Chief Executive Officer of Aclara, commented: "SPREC is a value-added product that results from applying its solvent extraction technology within our operations in Brazil and Chile. Our objective is to reduce operational risk at the separation plant, and this new stage allows us to significantly reduce impurities, which are precisely the main source of complexity in the solvent extraction plant. Also, as we intend to separate the rare earths coming from Brazil and Chile as a blend, having the purest possible carbonate reduces variability in the separation stage. Finally, this innovation not only simplifies downstream separation but...

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