O3 Mining Inc. announced the promotion of Myrzah  Bello to the position of Vice President of Sustainable Development and Alex Rodriguez to the position of Vice President of Corporate Development effective September 1, 2021. Additionally, the Corporation has engaged the services of Independent Trading Group ("ITG") to provide market-making services in accordance with TSX Venture Exchange ("TSX-V") policies. Myrzah Tavares Bello has been promoted to the position of Vice President, Sustainable Development and will be based in Montreal, Canada. Ms. Bello will continue to oversee sustainable development initiatives for the Corporation. Ms. Bello has over 20 years' experience in sustainable development providing consulting services to mining, oil and gas and other sectors. She has facilitated various consultations with different stakeholders in several projects. Ms. Bello managed multi-disciplinary teams when she worked as Director at SNC-Lavalin. She held various roles including leading the climate change group of experts for over 6 years, and managed the environment division in Brazil for over 14 years.  Alex Rodriguez Tovalino has been promoted to the position of Vice President, Corporate Development and will be based in Toronto, Canada. Mr. Rodriguez will continue to oversee strategic corporate initiatives as well as Investor Relations and Corporate Communications for the Corporation. Mr. Rodriguez is an economist with over 10 years of experience in the mining industry and capital markets, spanning both corporate development and equity research roles. He led and supported a range of strategic and finance initiatives at Volcan Compania Minera (Glencore Plc subsidiary) as Head of Business Development. Prior to Volcan, Mr. Rodriguez worked at Kallpa Securities SAB in Equity Research focused on the metals and mining sector.