Sirios Files Cheechoo Gold Project MRE Report on SEDAR: 1.3 Moz Indicated at 1.12 g/t Au, 1.7 Moz Inferred at 1.23 g/t Au

Sirios Resources Inc. has filed a comprehensive technical report on SEDAR documenting an updated mineral resource estimate for its Cheechoo Gold Deposit located in the Eeyou Istchee James Bay region of Quebec. The report, effective July 1, 2025, establishes significant gold resources totaling approximately 3.0 million ounces across indicated and inferred categories.

The resource estimate demonstrates 1.3 million ounces in the indicated category at an average grade of 1.12 grams per tonne gold, alongside 1.7 million ounces in the inferred category at 1.23 grams per tonne gold. These grades represent commercially viable concentrations that position the Cheechoo project as a substantial gold asset in Quebec's prolific James Bay mining district.

The filing of this technical report on SEDAR represents a critical milestone for Sirios, providing the regulatory documentation required for future development decisions and potential financing activities. The James Bay region has emerged as one of Canada's most active gold exploration frontiers, with multiple major discoveries and development projects advancing in recent years.

For the gold sector, this resource estimate adds to the growing inventory of developable gold assets in Quebec's mining-friendly jurisdiction. The combination of indicated and inferred resources totaling 3.0 million ounces positions Cheechoo among mid-tier development opportunities in the province, potentially contributing to Quebec's expanding gold production profile as the project advances through feasibility and development phases.