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O3 Mining Infill Drilling Continues to Expand Marban In-pit Resource Potential

TSXV:OIII | OTCQX:OIIIF - O3 Mining TORONTO, Aug. 31, 2021 /PRNewswire/ - O3 Mining Inc. (TSX.V: OIII) (OTCQX:OIIIF) ("O3 Mining" or the "Corporation") is pleased to provide an update on its fully-funded 250,000 metre drilling program at its Marba