Winshear drills Rodburn target at Portsoy, NE Scotland

High-Grade Mineralization Extended Downdip at the South Zone and Westwards at the North Zone

VANCOUVER, British Columbia, Aug. 06, 2026 (GLOBE NEWSWIRE) -- Winshear Metals Corp. (TSX-V: WINS, FRA: 9HR0) reports very encouraging drill results from the recently completed drill program conducted at the Rodburn Target, Portsoy Project, NE Scotland, substantially expanding the footprint of high-grade mineralization.

Highlights

South Zone

Drilling extended high-grade mineralisation 100 meters (“m”) down-dip from earlier high-grade intercepts (see Table 1 and Figure 1 below), returning 8.15m grading 0.77% nickel (Ni), 1.14% copper (Cu), and 0.05% cobalt (Co), including 6.0m grading 0.98% Ni, 1.51% Cu and 0.06% Co in drill hole RBD029;

Drill hole RBD030 intersected 4m grading 0.29% Ni and 0.18% Cu a further 100m downdip from RB029. This intercept is interpreted to represent the mineralized halo peripheral to the massive sulphide mineralization (refer to the next bullet point);

Downhole electromagnetic (DHEM) surveying conducted in RBD030 detected a strong conductor, with characteristics of massive sulphide mineralization, 100m east of RBD030 – this is untested to date.

See Figure 1 and Figure 2 for the locations of the drill intercepts relative to the position of the DHEM target.

North Zone

Drilling at the North Zone (RBD028) extended mineralization 100m to the west of RBD015 (9m grading 0.61% Ni, 0.23% Cu, 0.03% Co) and RBD016 (9m grading 1.13% Ni, 0.73% Cu, 0.11% Co).

RBD028 intersected two well mineralised zones: 3m grading 0.98% Ni, 0.14% Cu, 0.045% Co, and

4m grading 0.76% Ni, 0.32% Cu, 0.034% Co

Within a 16m thick zone grading 0.39% Ni, 0.14% Cu, 0.018% Co

Figure 3 shows the growth of the North Zone to the west.

Richard Williams, CEO of Winshear, commented: “These drill results support our view that Rodburn is part of a well-mineralized nickel-copper-cobalt system