Koryx Copper S.A.

Highlights  Assay results reported for 19 drill holes comprising over 8,586m of infill drilling.Consistent, wide intercepts up to 969m in width, including 236m @ 0.57% CuEq.High-grade mineralisation from surface in HM177, including 30m @ 1.10% CuEq.All 19 holes intersected thick mineralisation including multiple intercepts above average MRE grade.Best 6 of 19 drill hole assay intersections as follows: HM185:         413m @ 0.41% CuEq (89ppm Mo, 0.022g/t Au) (0 – 413m) incl.      236m @ 0.57% CuEq (156 – 392m)...

Highlights  Process flow sheet optimization largely complete with potential for significant production and cost improvements, driven by 1) the improved mineral resource estimate 2) an optimized mine plan and 3) various process flow sheet enhancements including applying coarse particle flotation (“CPF”) to reject low-value waste rock. Haib test work confirms that using CPF in the milling circuit is expected to reject up to 25% of run-of-mine (“ROM”) feed as coarse tailings with only limited copper loss. Processed MF grade expected to increase significan...

Highlights  First pass regional surface geochemical sampling over Mpongwe Licence identifies additional Cu soil anomalies for follow-up in similar stratigraphic and structural setting to Lwabufubu target.Repeat soil sampling results confirm Lwabufubu target as a priority for further work on the Mpongwe licence. Drill program at Luanshya West planned for late season 2026.Initial consent granted for the transfer of the two earn-in licences to Koryx Zambia. LUXEMBOURG, June 23, 2026 (GLOBE NEWSWIRE) -- Koryx Copper S.A. (“Koryx” or the "Company") (TSX...