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O3 Mining Files Technical Report for Marban Engineering Mineral Resource Estimate Update

TSXV:OIII | OTCQX:OIIIF - O3 Mining TORONTO, April 14, 2022 /PRNewswire/ - O3 Mining Inc. (TSXV:OIII) (OTCQX:OIIIF) ("O3 Mining" or the "Corporation") is pleased to announce that it has filed a technical report in accordance with National Instrument