Pacific Ridge Completes Drilling at the Kliyul and RDP Copper-Gold Projects; Drilling at RDP Intersects 300 Metres of Continuous Copper-Sulphide Mineralization

Vancouver, British Columbia--(Newsfile Corp. - September 24, 2026) - Pacific Ridge Exploration Ltd. (TSXV: PEX) (OTCQB: PEXZF) (FSE: PQW) ("Pacific Ridge" or the "Company") is pleased to provide an overview of the recently completed exploration programs at its 100% owned Kliyul copper-gold project ("Kliyul") and RDP copper-gold project ("RDP"). Kliyul is located in the prolific Quesnel terrane; RDP is located 40 km west of Kliyul at the southern end of the Toodoggone Mining District, one of Canada's hottest exploration districts (See Figure 1).

2026 Drilling Highlights

At RDP, five diamond drill holes totaling 3,010 m were completed at the Day target. Two holes, RDP-26-015 and RDP-26-016, tested the interpreted porphyry centre, and three holes, RDP-26-017 through RDP-26-019, tested the western magnetic lobe (Figures 2 and 3).

All drill holes intersected porphyry-style alteration, veining and porphyritic monzodiorite intrusions.

Drill holes RDP-26-016, RDP-26-017 and RDP-26-019 confirmed continuous copper-sulphide mineralization (chalcopyrite +/- bornite) from vertical depths of approximately 170m over lengths greater than 300 m (Figure 4).

At Kliyul, four diamond drill holes totaling 1,524 m were completed at the M39 target, a high-priority target that had never been drill tested before (Figure 5 and 6).

Porphyry-style alteration, veining and porphyritic dioritic intrusions were encountered in every drill hole.

Alteration and veining characteristics at M39 closely resemble those documented at the Kliyul Main Zone ("KMZ"), indicating potential proximity to porphyry copper-gold mineralization (Figure 7 and 8).

"The 2026 exploration programs generated important new geological and geophysical information at both Kliyul and RDP," said Blaine Monaghan, President & CEO of Pacific Ridge. "At RDP, dri