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IONE, CA, November 8, 2023 – Purebase Corporation (OTCPK: PUBC), (“Purebase”) Purebase Corporation entered a Second Amendment to the Materials Extraction Agreement (“Agreement”) on November 1, 2023 with US Mine, LLC (“US Mine”), which Agreement provides for US Mine to provide kaolin clay for Purebase’s planned production of metakaolin to be used as supplementary cementitious material (SCM).
Sources: Purebase Corp., Ione, Calif.; CMCM staff
Purebase Corp. anticipates a Q3 start-up for a calciner engineered to process reactive, concrete-grade metakaolin from an Ione, Calif. kaolin clay deposit. An ASTM C618-designated natural pozzolan, metakaolin presents a lower carbon alternative to portland cement, owing to the lower calcination phase heat, < 700°C versus 1,400°C+, required to drive off CO2 from calcium and other minerals. It can be used at portland cement substitution rates hovering 25 percent in concrete mixes.
Purebase acquires right to access 100M tons of clay for SCM project IONE, CA –…
Purebase is a diversified resource company that acquires, develops, and commercializes industrial and natural mineral deposits to provide solutions to the agricultural and industrial sectors.
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