Equinox Resources Confirms 42% Extractable Alumina & Elevated Gallium at Campo Grande, Brazil – A Strategic Breakthrough in Critical Minerals Supply

Tuesday, June 3, 2025
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8:23 am
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Equinox Resources Limited announces confirmed refinery-grade bauxite and gallium at its Campo Grande Project in Brazil. Test results show high extractable alumina with optimal ratios for efficient Bayer processing. The project's strategic location near robust infrastructure reinforces its promise as a secure source of alumina and strategic metals.

Equinox Resources Limited announced that assay results from its Campo Grande Project in Bahia, Brazil have confirmed the presence of refinery-grade bauxite with extractable alumina values reaching up to 42.1% and favorable Alumina-to-Silica (A/S) ratios as high as 9.0. The announcements detail multiple intercepts including notable intervals such as 7 meters with 39.2% extractable alumina and an Al/Si ratio of 6.8, along with other intervals demonstrating extractable alumina consistently in the mid to high 30’s percentage range. These attributes make the deposit well-suited for the low-temperature Bayer processing method, which is the industry standard for alumina production. In addition, the project has recorded gallium concentrations up to 106.5 g/t Ga₂O₃. This gallium, recoverable as a by-product through caustic liquor circuits during the Bayer process, adds extra strategic value as demand for this critical mineral grows among semiconductor, defense, and renewable energy sectors. The Campo Grande Project, which is 100% owned by Equinox Resources Limited and free of royalty obligations, is strategically situated near key logistics infrastructure such as highways, power supplies, and port facilities, bolstering its export potential and reducing overall costs. Technical testwork involved simulating Bayer process conditions through alkaline digestion experiments—under elevated temperatures and pressure—to selectively dissolve gibbsite-hosted alumina while quantifying reactive silica liable to form unwanted by-products that may lower refinery efficiency. Utilizing established methods such as ICP-OES, the laboratory analyses provided robust data on extractable alumina and reactive silica, supporting the technical viability of the deposit. Moreover, early drilling results and mapping techniques have underlined the continuity and favorable mineralization characteristics across the broader Rio Negro trend, which is also noted for its REE and monazite mineralization. Investors can view the news as bearing bullish elements because the confirmation of high-grade, refinery-suitable bauxite and gallium adds significant value and positions Equinox Resources Limited to benefit from rising global demand for high-quality alumina feedstock and strategic metals. The project's strong logistical positioning and absence of royalties further enhance its prospects. On the bearish side, some caution remains as critical intersections have yet to be independently verified by alternative personnel, and future development remains subject to further drilling and metallurgical testing, typical of early-stage projects. Overall, these results are seen as a positive technical validation that could drive future exploration and potentially bolster the company’s market position.

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