Imperial Provides Huckleberry Exploration Update

Executive Summary

• Imperial Metals completed its 2025 Huckleberry mine diamond drilling program (9 holes, 1,743 m) and intersected copper‑molybdenum‑silver‑gold mineralization, including a notable gold interval of 22.6 m at 0.23 g/t Au in hole MZ-25‑1.
• The program expanded and infilled the Main Zone to the southwest, confirming higher‑grade zones at relatively shallow depths and providing new assay data for gold and silver that will be incorporated into the block model and future mine planning.
• Additional step‑out drilling was completed at the Whiting Creek prospect (3 holes, 1,870 m), revealing broad low‑grade copper‑molybdenum mineralization and a 12.5 m interval of 0.16 % Mo, indicating the system remains open in multiple directions.

Key Details

• Huckleberry Main Zone – Drillhole Results
• MZ-25‑1: 73.7–126.4 m (52.7 m) – Cu 0.50 %, Mo 0.005 %, Ag 1.80 g/t, Au 0.14 g/t; highlighted interval 73.7–96.3 m (22.6 m) – Cu 0.81 %, Mo 0.007 %, Ag 2.51 g/t, Au 0.23 g/t.
• MZ-25‑2: 48.0–157.5 m (109.5 m) – Cu 0.21 %, Mo 0.020 %, Ag 1.18 g/t, Au 0.08 g/t.
• MZ-25‑3: 51.0–201.0 m (150.0 m) – Cu 0.24 %, Mo 0.007 %, Ag 2.40 g/t, Au 0.05 g/t.
• MZ-25‑4: 42.5–132.0 m (89.5 m) – Cu 0.37 %, Mo 0.011 %, Ag 1.07 g/t, Au 0.06 g/t; highlighted interval 42.5–105.0 m (62.5 m) – Cu 0.48 %, Mo 0.011 %, Ag 1.41 g/t, Au 0.08 g/t.
• MZ-25‑5: 55.0–234.0 m (179.0 m) – Cu 0.28 %, Mo 0.005 %, Ag 1.95 g/t, Au 0.06 g/t; highlighted interval 142.5–217.5 m (75.0 m) – Cu 0.35 %, Mo 0.005 %, Ag 3.08 g/t, Au 0.06 g/t.
• MZ-25‑6: 45.0–87.0 m (42.0 m) – Cu 0.22 %, Mo 0.002 %, Ag 0.79 g/t, Au 0.05 g/t.
• MZ-25‑7A: 96.0–354.0 m (258.0 m) – Cu 0.22 %, Mo 0.011 %, Ag 1.61 g/t, Au 0.08 g/t; highlighted interval 197.5–270.0 m (72.5 m) – Cu 0.41 %, Mo 0.012 %, Ag 3.66 g/t, Au 0.16 g/t.
• MZ-25‑8: 100.0–234.0 m (134.0 m) – Cu 0.32 %, Mo 0.010 %, Ag 1.54 g/t, Au 0.07 g/t.

• MZ-25‑10: 72.0–204.0 m (132.0 m) – Cu 0.32 %, Mo 0.006 %, Ag 1.28 g/t, Au 0.05 g/t; highlighted interval 142.5–190.0 m (47.5 m) – Cu 0.45 %, Mo 0.005 %, Ag 1.68 g/t, Au 0.08 g/t.

• Geological Context

• Mineralization primarily hosted in volcanic rock surrounding the Main Zone intrusive stock; some mineralization (especially Mo) extends into the stock itself.

• Future Plans – Huckleberry

• Additional drilling under consideration for 2026 to further test southwest expansion and depth extensions.

• Whiting Creek Prospect – Drillhole Results

• Three step‑out holes (WC-25‑1, WC-25‑2, CW-25‑006) totalling 1,870 m intersected broad low‑grade Cu–Mo zones in volcanic rocks and porphyry dykes.
• Notable interval: 12.5 m at 0.16 % Mo from 352.5 m in hole WC-25‑002, indicating potential for higher‑grade molybdenum pockets.

• System remains open to the east, west, south and depth.

• Qualified Person – Jim Miller‑Tait, P.Geo., VP Exploration, reviewed the release per NI 43‑101.

• QA/QC – Samples analyzed by Activation Laboratories Ltd.; full QA/QC program applied; reported intervals are apparent widths.

Notable Quotes

(No direct quotes were provided in the release.)