Mr. Darryl Jones reports

STAR COPPER DRILL PROGRAM MOBILIZES ADDITIONAL RIG AT COPPER CREEK TO TEST HIGH VALUE HISTORIC TARGET IN BC

Star Copper Corp. has finalized preparations for a maiden drill program at its Copper Creek target, located just two kilometres from the Star Main drill campaign at the flagship Star project in northwestern British Columbia. The Copper Creek target has advanced to a drill-ready stage following extensive geological, geochemical and geophysical work programs. The company is eager to test the historic holes and validate additional targets to confirm a larger porphyry deposit.

Copper Creek target overview

Copper Creek is characterized by two strong copper-in-soil anomalies extending over an area approximately 550 metres by 1,000 metres, with anomalous values remaining open to the north, south and east. Extensive malachite-azurite gossans are exposed at surface, coinciding with elevated copper and gold in soils and chargeability highs from induced polarization (IP) surveys.

The main showing hosts copper oxides, chalcopyrite and pyrite within strongly propylitically altered volcanics along an east-trending structural zone. Field mapping and rock sampling have confirmed that copper mineralization is structurally controlled, with several high-grade exposures exceeding 5,000 parts per million copper (X-ray fluorescence) identified along bluffs during earlier work.

Historic and recent work

Historic exploration programs include prospecting, trenching, limited drilling (1970), and 2013 geophysical and geochemical surveys. The 2013 IP survey and total magnetic intensity (TMI) data were recently reinterpreted using 3-D inversion and Leapfrog modelling, integrating historic drill and soil data sets. Follow-up fieldwork in 2025 confirmed structural orientations influencing mineralization and validated proposed collar locations.

Planned drill program

The helicopter-supported drill program is scheduled to begin following completion of pad construction. Two initial holes, totalling approximately 400 metres, are planned to test:

• Historic mineralized intervals identified in prior drilling;
• High-grade copper-gold soil and rock anomalies coincident with a strong IP chargeability response.

Field access preparation and helicopter-pad construction are now complete, with full site set-up and mobilization planned to commence within a week.

Chief executive officer comment

"Copper Creek represents an exciting step forward as we begin systematic testing of multiple high-priority copper-gold targets across the property," stated Darryl Jones, chief executive officer of Star Copper. "The integration of historic and modern data sets has provided a clear vector toward structurally controlled copper mineralization that remains open in all directions."

Quality assurance/quality control statement

Star Copper follows industry-standard protocols for diamond drilling and QA/QC procedures in British Columbia. All drilling is carried out using HQ- and NQ-sized diamond drill core. Drill core is transported from the drill site to a secure core logging facility, where it is logged, photographed and sampled under the supervision of geologists. Core is cut in half using a diamond saw, with one-half of the core placed in a sealed sample bag and sent for analysis and the other half retained on site for reference and further studies.

Samples are shipped under chain-of-custody protocols to Bureau Veritas Laboratories, an ISO/IEC 17025-accredited laboratory. At Bureau Veritas, samples are dried, crushed, split and pulverized to 85 per cent passing 200 mesh. Analytical procedures include multielement ICP-ES/MS following four-acid digestion, with gold and precious metals analyzed by fire assay with an atomic absorption or ICP finish.

Star Copper implements a robust QA/QC program, including the insertion of a minimum 5 per cent certified reference materials (standards), blanks and field duplicates at regular intervals into the sample stream to monitor analytical accuracy and precision. The performance on the blind standards, blanks and duplicates achieved high levels of accuracy and reproducibility and has been verified by Jeremy Hanson, a qualified person as defined by National Instrument 43-101.

XRF is a portable analytical tool used to obtain rapid, on-site estimates of metal content in rock samples during early-stage exploration. The readings reflect only a very small portion of the analyzed rock surface and are not necessarily representative of overall grades or assay results.

Qualified person

Jeremy Hanson, PGeo, a qualified person as that term is defined under NI 43-101, is an independent contractor of the company and has reviewed and approved the technical aspects of this news release.

About Star Copper Corp.

Star Copper is an exploration and development company focused on developing high-potential copper projects in mining-friendly jurisdictions. The company aims to advance its British Columbian flagship Star project, where significant exploration work, including historical drilling, has confirmed open mineralization at depth and in all directions. Star Copper's strategic plans include geological mapping and geophysical surveys to refine existing targets, diamond drilling programs to test high-priority zones, and environmental baseline studies and permitting groundwork alongside data analysis and resource modelling to support a future resource estimate prepared in accordance with NI 43-101. The company further plans to advance its Indata project with follow-up drilling to expand on previous high-grade copper and gold intercepts, trenching and surface sampling to delineate mineralized zones, and infrastructure improvements for site accessibility and operations. With a commitment to sustainable development and value creation, Star Copper aims to position itself to support surging industrial demand to meet growing global electrification needs.

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