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O3 Mining Completes Pre-Feasibility Study For Marban Engineering with Post-Tax NPV of C$463 Million, Unlevered IRR of 23.2% And Annual Production Of Over 160Koz Gold

TSXV:OIII | OTCQX:OIIIF - O3 Mining TORONTO, Sept. 6, 2022 /PRNewswire/ - O3 Mining Inc. (TSX.V: OIII) (OTCQX:OIIIF) ("O3 Mining" or the "Corporation") is pleased to announce the completion of the Pre-Feasibility Study ("PFS"), prepared in accordance