Winshear Completes Phase 1 Drill Program and Downhole EM Survey at Portsoy Nickel-Copper-Cobalt Project, Scotland

VANCOUVER, British Columbia, May 26, 2026 (GLOBE NEWSWIRE) -- Winshear Metals Corp. (TSX-V: WINS, FRA: 9HR ) reports that it has completed the Phase 1 drill program at the Rodburn Target on the Portsoy Nickel – Copper – Cobalt project, located in Aberdeenshire, Scotland. Assays will be reported as soon as received. The program comprised six drill holes for a total drilled length of 1,235.6m, with four holes drilled in the North Zone (524.5m) and two holes at the South Zone (711.1m).

The downhole electromagnetic (“EM”) survey conducted in RDB030 detected a strong off-hole conductor which will be tested in the next round of drilling. North Zone Drilling Four drill holes were completed at the near-surface North Zone bulk tonnage target to determine which direction the mineralization was trending. These four holes followed up the two 2024 drillholes which intersected: 33m grading 0.56% Ni equivalent* (see footnote below the table below for nickel equivalent calculations), including 9m grading 0.77% Ni equivalent in drillhole RBD015 59m grading 0.45% Ni equivalent, including 9m grading 1.65% Ni equivalent in drillhole RBD016 See Figure 1 cross section showing the 2024 drilling The four 2026 drillholes (RBD025, RBD026, RBD027 and RBD028) were collared north, east and west of the 2024 drillholes ( Figure 2 ).

Disseminated sulphides were observed over a 69.5m section of RBD028, collared 60m west of RBD015 and RBD016, between a downhole depth of 18.1m to 87.6m. This is the widest zone of sulphide mineralization encountered to date on the project. Observations from the drilling at the North Zone show the mineralization trends and thickens westwards and is still open.

Further drilling is required to determine the extent of this zone. South Zone Drilling Two drillholes (RBD029 and RBD030), totaling 711.1m, were completed