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O3 Mining Presents Its 2021 ESG Report

TSXV:OIII | OTCQX:OIIIF - O3 Mining TORONTO, April 4, 2022 /PRNewswire/ - O3 Mining Inc. (TSX.V: OIII) (OTCQX:OIIIF) ("O3 Mining" or the "Corporation") is proud to announce it has published its 2021 environmental, social and governance ("ESG")