Mr. Darryl Jones reports

STAR COPPER PROVIDES SITE VISIT UPDATE OF ONGOING DRILL CAMPAIGN IN BRITISH COLUMBIA'S GOLDEN TRIANGLE

Star Copper Corp. has provided an update on the continuing maiden drill program at its flagship Star project located within the Golden Triangle, an area recognized as one of British Columbia's most geologically endowed regions. The fully financed campaign is focused on expanding the existing discovery at the Star project by increasing its knowledge regarding the Star Main, Star North, Star East and Star West target locations.

Campaign strategy

The 2025 drill campaign is designed to test both the lateral and vertical continuity of mineralized zones previously identified from over $10-million in prior drilling and exploration campaigns. Drilling targets near-surface oxide zones, deep porphyry-style mineralization, and structures associated with the Star fault and the Dick Creek fault. Star Copper is investigating beyond previously drilled depths and is now in the midst of up to 4,000 meters of drilling across six primary drill holes (holes A to F), with holes A and B now complete and initial samples already transported by air for assaying.

Drilling update

The company is currently drilling hole C (S-052), which represents an approximately 50-metre stepout north of hole B (S-051). Designed to test the continuity of near-surface supergene copper enrichment and to vector into deeper potassic-altered porphyry-style mineralization it continues to build upon the success of holes A and B in confirming a large, vertically and laterally extensive mineralized system at Star.

At a depth of 200 metres, hole C has intersected a heavily fractured and veined section characterized by broad zones of intense potassium feldspar (K-spar) alteration. This alteration occurs within and adjacent to a stockwork halo of quartz/calcite/K-spar/chlorite/chalcopyrite veins, further confirming a significant potassic-altered intrusive system. Additionally, intervals of intense gypsum-calcite veining were observed, reinforcing the presence of strong hydrothermal overprint.

The mineralization style is defined by quartz/feldspar/chalcopyrite stockworks with fracture-controlled chalcopyrite dissemination. Surface to mid-depth sections continue to display strong supergene features, including vivid azurite and malachite staining -- evidence of a well-preserved supergene copper cap.

Permitting update

Star Copper is also pleased to report that its multiyear area-based (MYAB) exploration permit has been extended a further two years pursuant to British Columbia's deemed authorization process established under the Permitting Regulation of the Mines Act. The company is now fully permitted through March 31, 2028, and is authorized to drill up to 200 holes, construct five kilometres of access roads, and undertake trenching and related surface work across the Star property.

The company has also been provided notice by the British Columbia government of a land use planning exercise being undertaken in 16 million hectares of northeastern British Columbia. This includes a one-year pause of filing new mineral claims in a third of this area (including the project area) but allows permitting and exploration for existing projects and mineral claims to take place.

Management site visit

Recently, company chairman Brad Nichol and chief executive officer Darryl Jones visited the Star project and expressed strong confidence in its potential.

"Coming from an extraordinary success in developing early-stage assets at Alpha Lithium, I feel as though Star could be on the verge of delivering some fantastic results," stated Mr. Nichol. "Company management feels that Jeremy Hanson and the team have instilled a high level of confidence that we are building out B.C.'s next big copper-gold story in the Golden Triangle."

Qualified person

Jeremy Hanson, PGeo, a qualified person, as that term is defined under National Instrument 43-101, is an adviser to 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, 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.

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