Star Copper Reports First Phase 2 Drill Results Extending Mineralization to West, North and South

Executive Summary

• Star Copper released first Phase 2 drill results from its 2025 program at the Star Main target, highlighting multiple broad copper‑gold intervals (e.g., 80.30 m @ 0.508% CuEq in hole S‑060).
• The data confirm that the mineralized system remains open to the west, north and south, supporting a larger 2026 exploration campaign.
• The company closed an oversubscribed non‑brokered flow‑through private placement for C$7.306 million (5,844,800 shares at C$1.25) to fund the upcoming 2026 drill program.

Key Details

• Hole S‑056: 542 m @ 0.139% CuEq (incl. 103 m @ 0.351% CuEq).
• Hole S‑057: 508 m @ 0.181% CuEq (incl. 161 m @ 0.329% CuEq).
• Hole S‑058: 269 m @ 0.141% CuEq (incl. 69 m @ 0.246% CuEq).
• Hole S‑059: 313 m @ 0.281% CuEq (incl. 109 m @ 0.391% CuEq).
• Hole S‑060: 317 m @ 0.291% CuEq (incl. 80 m @ 0.508% CuEq).

• Hole S‑061: 68 m @ 0.266% CuEq (incl. 26 m @ 0.494% CuEq).

• All intervals are length‑weighted averages; CuEq calculated using Cu $5.60/lb, Au $4,350/oz and 80 % recoveries for both metals.

• Geological observations:

• Western holes (S‑056, S‑057) intersect a broad potassic‑altered, chalcopyrite‑bearing corridor in quartz monzodiorite.
• Northern holes (S‑058‑060) show mineralization within volcanic and porphyritic host rocks with strong D‑type veining.

• Southern hole (S‑061) confirms shallow oxidized copper mineralization on the southern flank.

• Financing:

• Gross proceeds: C$7,306,000.
• Issuance: 5,844,800 flow‑through shares at C$1.25 each.

• Proceeds earmarked for an aggressive 2026 drill program (step‑out drilling, deeper target testing, 3‑D modelling, deep geophysics).

• Future Plans:

• $10 MM already committed to the Star Property for 2026 work.
• Continued expansion of Star Main and follow‑up on Copper Creek and Star North targets.

Notable Quotes

“These first Phase 2 results show that Star Main hosts multiple mineralized corridors… With fresh flow‑through capital now in place, we believe Star is well positioned for a much larger 2026 campaign…” – Darryl Jones, CEO & President, Star Copper Corp.