QC Copper and Gold Inc. announced upgraded Mineral Resource Estimate (MRE) results for the Opemiska Project in Quebec's Chapais-Chibougamau District. This enhanced MRE reflects a significant increase in grade and contained metal, attributed to extensive drilling and technical team's two-year recompilation and reinterpretation of geological data. The Company also underscores that the qualitative improvements in the database enhance confidence in the project's geological model and, by extension, the Mineral Resource estimate.

Aside from the increased grade and metal content, these database enhancements hold substantial value, crucial for forthcoming economic and engineering assessments. The Mineral Resource Estimate on the Opemiska Deposit is based on a drill hole database containing 16,570 surface and underground diamond drill holes totaling 1,042,668 metres of core drilling and 348,492 assays. All mine-era drilling was converted from mine grid to UTM using transformation equations calculated by a land surveyor based on differential GPS measurements of many located drill casings.

All historical mine excavations and stopes were digitized in mine grid from numerous maps, vertical and longitudinal sections, and solid wireframes were built and converted to UTM coordinates. All stopes were digitized down to the bottom of the Perry (820m depth) and Springer (715 metres) mines and formed the basis of the reinterpretation of the geology of the Opemiska Deposit. This updated Mineral Resource for Opemiska is a major step towards advancing the project to mine development.

The grade and reconciliation of the new Mineral Resource has held up to a much more rigorous interpretation due to two-year initiative. The team delivered a very high-quality product that details very high in-pit grades and can carry the project through to a Feasibility Study. next step will be to establish the economic parameters for a conceptual mining operation through a Preliminary Economic Assessment and simultaneously, QC Copper will continue drilling at depth on Perry and in satellites zone that can provide additional near-surface Mineral Resources to enhance the development of Opemiska.

The positions in three dimensions of the historical stopes at the Springer and Perry mines have been digitized from georeferenced plans and cross-sections, however, due to normal and expected imprecision, some of the stopes are neither totally enclosed in the mineralized envelopes or totally enclose the mined-out portions of the copper-gold veins which creates some downside risk on grade compared to reality. When old open or backfilled stopes were expected to be intersected in drilling the holes, they were started in NQ and telescoped to BQ after the stope, or started in HQ and reduced to NQ and then BQ, when a second stope was encountered to ensure completion of the drill hole. The historical mine drill holes were surveyed on surface and underground at the time of drilling by mine personnel using conventional surveying methods.

No bulk densities are available for the vendor drill holes or historical mine drill holes. For the Mineral Resource database, additional QAQC measures included drill core duplicates. For the historical drilling assay verification, measures comprised drill core resampling for the holes drilled by the vendor in 2010, 2015 and 2016 and for the historical Falconbridge mine era drilling where no drill core remains, a number of holes were collared near the location and orientation of mine-era surface drill holes and results compared with the assays from the mine.

The results of these measurements confirm that the assays from the vendor period are equivalent to QC Copper assays and that the mine era assays are demonstrably equivalent for the range of values from the lower detection limit up to approximately 2.0% Cu which represents over 90% of the assays in the Mineral Resource database.