O3 Mining Inc. provided production guidance for 2023. The company announced that In 2023, exploration efforts will be focused on expanding the life of mine ("LOM") of the Marban project with a total of 26,000 metres of planned drilling. The drilling contract was assigned to a joint venture between RJLL Drilling and Assibi Industries (a partnership aimed to create a link for the Anishnabe Nation of Lac-Simon and drilling activities on their territory).

Marban Engineering near pit expansion - Adding value in Years 0 to 10; Resource and reserve update as part of the FS. Marban Engineering resource growth - Adding value in Years 10 and over, Resource growth near surface and for underground potential. Initial maiden resource estimate expected by Q2-2023.

Marban Regional - Testing gold and Volcanogenic Massive Sulphide ("VMS") targets; Regional exploration for gold and base metal targets. Sustainable Development in 2023: O3 Mining initiated the permitting and environmental evaluation at both federal and provincial levels. After consulting with interested parties on what the impact assessment statement should include, both levels of authority will establish the requirements of the impact assessments to be developed.

Only when these frameworks are made available by the two instances will O3 Mining be in a position to initiate the Impact Studies. The Corporation will continue to deploy its participatory approach with the authorities and stakeholders in the development of the Marban Engineering Project to not only improve the project but to make it an even more responsible mining project. The Corporation will thus continue its dialogue with the First Nations and the various stakeholders, including but not limited to, citizens, host communities, municipal, provincial, and federal representatives, etc.

O3 Mining will also look at developing more partnerships with First Nations companies and entrepreneurs like the drilling joint venture between RJLL Drilling and Assibi Industries, beginning in 2023. The Corporation is convinced that the Marban Engineering Project is promising and can be positively integrated gradually on a local and regional scale, both in terms of job sustainability and the Abitibi environmental and socio-economic ecosystem. O3 Mining is committed to maintaining the UL 2723 ECOLOGO® Certification for Mineral Exploration Companies.

Continuous training of employees, enforcement of ESG procedures and constant search for innovative solutions to improve ESG performance, will be at the core of the Corporation's ongoing exploration activities. Alpha Project in 2023: 4,000 metres of planned drilling, Follow up on Centremaque intrusion intercepts which remain open in many directions: 2,200 metres planned; Test near surface targets in the vicinity of the Akasaba deposit, located adjacent to Agnico Eagle's, Akasaba West mine: 1,800 metres planned.