Pacific Ridge extends copper-gold zone at RDP

Executive Summary

• Pacific Ridge reports a high‑grade porphyry copper‑gold‑silver intercept from the 2022 drill hole RDP‑22‑005 (107.2 m @ 1.39 % CuEq, 2.06 g/t AuEq).
• The 2025 drill program has begun, with multiple holes (RDP‑25‑010 to RDP‑25‑014) confirming the tabular geometry of the Day target and extending mineralization northward and deeper.
• Ongoing drilling aims to delineate a west‑striking, steeply north‑dipping porphyry body that remains open at depth and laterally.

Key Details

• 2022 Highlight: Hole RDP‑22‑005 intersected 107.2 m of 1.39 % CuEq (0.63 % Cu, 1.10 g/t Au, 2.91 g/t Ag) within a broader 497.2 m interval averaging 0.66 % CuEq (0.37 % Cu, 0.40 g/t Au, 1.60 g/t Ag).
• 2025 Program Objective: Confirm that the Day target mineralization is hosted in a westward‑striking, steeply north‑dipping tabular porphyry body.

Hole‑by‑hole results (2025)

• RDP‑25‑010 – First 2025 hole, located 40 m SW of RDP‑22‑005; azimuth 60°, dip 72°. Encountered quartz‑magnetite‑sulphide stockwork in the first 5 m and a late mineral intrusive from 5–175.5 m; drilling terminated thereafter.
• RDP‑25‑011 – Same pad, azimuth 48°, dip 65°, depth 431 m; intersected patchy potassic alteration (K‑feldspar‑magnetite) and strong quartz‑magnetite sulphide veining with chalcopyrite ± bornite in early‑mineral monzodiorite and hydrothermal breccia, extending mineralization ≥50 m north of RDP‑22‑005.
• RDP‑25‑012 – Azimuth 48°, dip ‑65°, length 363 m; drilled from a site 170 m NE of RDP‑22‑005 to test tabular geometry.
• RDP‑25‑013 – Azimuth 160°, dip ‑70°, length 582 m; intersected chalcopyrite and bornite mineralization in potassic monzodiorite and breccia, confirming tabular porphyry Cu‑Au geometry; copper sulphide mineralization encountered to a vertical depth of ~500 m and remains open.

• RDP‑25‑014 – Ongoing drill at azimuth 160°, dip 70° from the same pad as RDP‑25‑011; results pending.

• Historical Context: Hole RDP‑23‑007 (collared 300 m NE of RDP‑22‑005) previously returned 19.0 m @ 0.45 % CuEq (0.32 % Cu, 0.19 g/t Au, 1.08 g/t Ag).

• Technical Oversight: All data reviewed and approved by Danette Schwab, P.Geo., VP Exploration, qualified person under NI 43‑101.

Notable Quotes

“We are very pleased with what we are seeing so far,” said Blaine Monaghan, President & CEO. “Strong copper mineralization is present in many of the drill holes and drilling has confirmed that the porphyry copper‑gold‑silver mineralization at Day is hosted in a tabular body that remains open.”