Star Copper Concludes Drill Season with Strong Balance Sheet and Momentum into 2026Company closes both LIFE and Flow Through Private Placements VANCOUVER, BC / ACCESS Newswire / December 9, 2025 / Star Copper Corp. (CSE:STCU)(OTCQX:STCUF)(FWB:SOP) ("Star Copper" or the "Company"), a critical minerals exploration and development company is pleased to provide a year-end summary of activities and accomplishments in addition to guidance regarding expectations for the 2026 exploration season.HighlightsRaise of over $17 MMDrilled 4900m in 2 phases, tested 2 new targets11 holes still pending at assay labsFirst 3 holes released (see Phase 1 Highlights)Permit extended to 2028Work camp and airstrip remediation completedAchievements in 2025 were initially based upon extensive records representing $10 million in historic drilling. The recently concluded campaign successfully tested both the lateral and vertical continuity of previously identified mineralized zones along with extensive area-wide field work including mapping, soil and rock sampling. The combined results significantly extend overall geochemical and geophysical knowledge and provide important guidance for the upcoming 2026 season.Company CEO, Daryl Jones notes, "Building off strong fundamentals, we raised over $17 million to fund a clear set of exploration objectives. Our technical team effectively reprocessed existing geophysical data to produce 3D magnetic inversion models, which produced a nested porphyry model, which in turn guided 4,900 meters of targeted drilling across two preplanned phases. A total of 13 holes were drilled, which expanded the Star Main supergene oxidized deposit to roughly 500 meters x 550 meters x 100 meters deep, demonstrated a consistent transition from supergene to hypogene mineralization below 200 meters, verified that mineralization is still open below depths of at least 500 meters, and perhaps most importantly, significantly expanded the known areas of mineralization in multiple directions up to 2.5 kilometers from the Star Main asset onwards to our Copper Creek and Star North project areas. The Company then capped off 2025 with another progressive financing which positions the Company to exit 2025 with nearly $10 million in cash on the balance sheet. All this activity packed into one exploration season truly sets the stage for an exciting year ahead.""Looking forward to 2026," Jones continues, "the Company is planning on strengthening and delineating existing Star asset models with detailed 3D geophysical data studies to provide greater, and more accurate comprehensive analysis with the incorporation of all assay results including from pending assays from as-yet unreported holes drilled in 2025, and by attracting specialized technical and operational talent to increase and improve our ability to effectively manage the growth focused scope of the project."Phase 1 Drill Campaign Summary (to-date)Phase 1 drilling expanded the near-surface supergene footprint to the west and southwest, confirmed copper mineralization across multiple intrusive phases, and sharpened the structural and alteration framework-particularly along the Star Fault and associated potassic (K-feldspar) alteration corridors. The six-hole drill campaign (S-050, S-051, S-052, S-053B, S-054A, S-055) totaled over 2200m and culminated with Hole S-055 (2025-E), which intersected a near-surface oxide horizon (visible malachite and azurite) transitioning at depth to chalcopyrite in mineralized quartz monzodiorite, consistent with our oxide-to-hypogene model along major structures. With assay results still pending, the Company will take the winter months to refine the geologic model to further advance future drilling on Star. Assays results for the initial three drillholes have been completed (see news releases September 22, 2025, and September 30, 2025), with assays pending for holes S-503B, S-054A, and S-055. Figure 1-2025 Drill Collar Locations. Star Copper 2025Table 1 - 2025 Drill HolesTargetHole_IDEastingNorthingElevationAzimuthDipTotal DepthStar MainS_050339836.664583081132.305270-85101Star MainS_051339766.164583031121.538235-85539Star MainS_052339857.664584051155.584240-83674Star MainS-053B339723.964582501103.396260-83183Star MainS-055339786.964581161045.055270-85330.5Star MainS-054A339992.164582941123.932270-85413Star MainS-056339693.464581451051.3310-75551Star MainS-057339693.464581451051.3310-88511.25Star MainS-058339704.164584911166.1010-90276Star MainS-059339865.264584541164.337180-80317Star MainS-060339928.564582181118.994265-85322Star MainS-0613395566457956941.41320-6574Copper CreekCC-25-0013411816456422901262-45151Star NorthSN-25-00134048764590841163131-45402UTM Zone 9NHighlights from Phase 1Hole S-051 intersected 226.54m 0.70% CuEq (0.44% Cu & 0.25 g/t Au) from 14m.Including 90m of 1.13% CuEq (0.65% Cu & 0.47 g/t Au) from 14m.Including 40m of 1.73% CuEq (1.03% Cu & 0.68 g/t Au) from 34m.Hole S-050 intersected 93m 0.93% CuEq (0.56% Cu & 0.36 g/t Au) fr