Mr. Darryl Jones reports

STAR COPPER ADVANCES SATELLITE TARGET LOCATED 1.5 KM FROM STAR MAIN DEPOSIT; ARRANGES NON-BROKERED FLOW THROUGH PRIVATE PLACEMENT

Star Copper Corp. has completed the inaugural drill hole at its high-impact Star North target, located approximately one kilometre northeast of the Star Main zone, within the company's 100-per-cent-owned Star project in British Columbia.

The Star North target mirrors the Star Main target in its geophysical and geochemical signature. Star North boasts a 500-metre-by-1,000-metre soil anomaly, which was used as a vectoring tool for drilling. Target depth of 400 metres was reached to test the edges of an induced polarization (IP) chargeability high.

2025 drill hole SN-25-001

Drill hole SN-25-001 (collar: 340487E and 6459084N; elevation: 1,163 metres; azimuth: 131 degrees; dip: minus-45 degrees; total depth 402 metres) was completed on Nov. 6, 2025, and represents the 13th and final hole of the 2025 exploration program at the Star project.

Star North is defined by an approximately 500-metre-by-1,000-metre copper-in-soil anomaly that is coincident with a strong IP chargeability high and was the subject of 2025 fieldwork, including detailed surface mapping and collection of 119 rock samples. Highlights from the surface campaign include sample AA002620 (17.6 per cent copper and 0.942 grams per tonne gold) and AA002628 (3.21 per cent copper) collected from semi-massive chalcopyrite in highly altered augite-plagioclase porphyry.

Geological core logging observations

Core logging of SN-25-001 records a stratigraphy consistent with surface mapping at Star North: volcanic host units intruded by a series of dykes typical of the target area, interspersed with multiple generations of fracturing, brecciation and quartz-sulphide veining. Alteration is variable, ranging from propylitic assemblages to zones showing patchy potassic (K-feldspar) alteration expressed in replacement and vein-halo textures. Chalcopyrite is present as fine disseminations and within quartz-sulphide veinlets/stringers, locally accompanied by pyrite and magnetite in areas of intensified veining. These observations are consistent with a transition from structurally prepared volcanic units into more intrusive porphyritic phases, where potassic alteration is most commonly developed across the Star property.

Implications and next steps

As the inaugural subsurface test of Star North, SN-25-001 provides the first drill-hole look beneath compelling coincident geochemical and geophysical anomalies and will be integral to refining the 3-D mineralization model for follow-up drilling in 2026. In combination with the phase 1 and phase 2 results from Star Main and continuing work at the Copper Creek satellite target, the textures, alteration and chalcopyrite occurrences observed in SN-25-001 are encouraging indicators that Star North may represent a second mineralized centre within a broader porphyry cluster framework on the Star project.

Assay results from SN-25-001 remain pending and will be disclosed once received and reviewed under the company's quality assurance/quality control procedures.

Key take-aways:

• Brand new look-alike target drilled 1.5 kilometres northwest of Star Main with same geochemical footprint 500-metre-by-1,000-metre soil signature;
• Assays pending from Star North, Copper Creek and Star Main drilling; 11 holes pending;
• 3-D mineralization model follow-up to expand drill targets and prepare for 2026.

Flow-through financing

The company is also pleased to announce that it intends to complete a non-brokered private placement for gross proceeds of up to $2.5-million from the sale of up to 2,118,644 flow-through units of the company at a price of $1.18 per flow-through unit.

Each flow-through unit will consist of one flow-through common share of the company and one flow-through common share purchase warrant, issued as flow-through shares, as defined in Subsection 66(15) of the Income Tax Act (Canada). Each flow-through warrant will be exercisable to acquire one common share at a price of $1.20 per warrant share for a period of 24 months from issuance. The warrant shares underlying the warrants will not qualify as flow-through shares under the tax act.

The securities offered under the offering will be subject to a statutory four-month hold period in accordance with applicable Canadian securities laws.

The gross proceeds of the offering will be used to incur Canadian exploration expenses that are flow-through critical mineral mining expenditures, within the meaning of the tax act, on the company's flagship Star project.

The company may pay finders' fees in connection with the offering in accordance with applicable securities laws and the policies of the CSE. Completion of the offering is subject to customary conditions and the receipt of all necessary approvals.

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.

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 100-per-cent-owned Star project in British Columbia's prolific Golden Triangle. The project hosts multiple copper-gold porphyry-style targets, including Star Main, Star North and Copper Creek. Significant exploration, 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, as well as 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.

We seek Safe Harbor.