Star Copper Kicks Off Inaugural Drilling at Star North Target

Rhea-AI Summary

Star Copper (OTCQX:STCUF) has begun drilling its inaugural hole SN-25-001 at the Star North target, 1 km northeast of Star Main, with a planned depth of 400 m (currently at 144 m) to test coincident magnetic, IP chargeability and a 500m x 1000m soil Cu anomaly.

2025 surface work collected 119 rock samples; select highlights include AA002620: 17.6% Cu, 0.942 g/t Au and AA002628: 3.21% Cu. Company reports QA/QC procedures and lab analyses at Bureau Veritas, with technical review by a NI 43-101 qualified person.

Positive

• Inaugural drill hole SN-25-001 underway, planned 400 m
• High-grade rock sample: 17.6% Cu and 0.942 g/t Au
• Defined 500m x 1000m soil Cu anomaly coincident with IP chargeability

Negative

• Drill hole at 144 m of planned 400 m; assay results pending
• Median Cu in 119 samples is 0.01855%, indicating most samples are low-grade

News Market Reaction

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-0.35% News Effect

On the day this news was published, STCUF declined 0.35%, reflecting a mild negative market reaction.

Data tracked by StockTitan Argus on the day of publication.

Surface results, geophysics and geochemistry present potential second copper centre

VANCOUVER, BC / ACCESS Newswire / November 4, 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 announce drilling is underway on the inaugural hole on the Star North target, located 1 km northeast of the Star Main project area.

The inaugural hole, SN-25-001 (UTM 340,487E / 6,459,084N; elevation 1,163 m; azimuth 131°; dip -45°; planned depth 400 m), is currently drilling at a depth 144 m (See Figure 1).

Figure 1-Drill hole SN-25-001 to test Star North target to 400ft. Star Copper 2025

The Star North target hosts two documented copper styles: (1) semi-massive chalcopyrite in veins and stringers within strongly silicified and brecciated volcanic units, and (2) fine to blebby disseminated chalcopyrite ± pyrite in quartz monzodiorite/monzonite with potassic alteration.

Star North is a high impact target located 2km northeast of the star main and 2.5 km north the Copper Creek target. This target has the same characteristics as the star main with a well defined 500m x 1000m soil Geochem anomaly and coincidental IP chargeability high. Drilling of the chargeability high at Star main was directly correlated to some of the best results in historic drilling. Star North offers up a compelling opportunity for the company to establish this as a nested porphyry cluster model.

During the 2025 season, crews completed detailed mapping and collected 119 rock samples, highlighted by select grab samples AA002620: 17.6% Cu, 0.942 g/t Au and AA002628: 3.21% Cu from semi-massive chalcopyrite in highly altered augite-plagioclase porphyry (see Table 1).

Table 1 - Star North 2025 Sampling Highlights

Sample ID		Easting		Northing		Cu (%)		Au (g/t)
AA002620		340628		6459062		17.6		0.942
AA002628		340525		6458995		3.21		0.027

2025 Star North Rocks

Summary Statistics		N		Minimum		Maximum		Mean		Median		Standard Deviation
Cu (%)		119		0.00026		17.6		0.4817		0.01855		2.0387
Au (g/t)		119		0.0005		0.942		0.03769		0.005		0.1126

For statistics, values reported below detection were treated as half the detection limit. ALS Labs. Methods: ME-MS61 and Au-ICP21. Overlimit for Cu using Cu-OG62.(Star Copper 2025).

SN-25-001 is designed to test the heart of the target, coincident magnetic and IP chargeability anomalies beneath strong Cu-in-soil trends and mapped copper showings. Hole SN-25-001 will evaluate the relationship between geophysics, alteration, and sulphide distribution at depth (see Figure 2).

Figure 2-Star Project Overview. Star Copper 2025

"Kicking off drilling at Star North marks a major milestone for our 2025 program," said CEO Darryl Jones. "With compelling surface results and robust geophysical and geochemical signatures, this first hole is an important step toward demonstrating a second copper center alongside our Star Main location."

QA/QC Statement
Star Copper Corp. follows industry standard protocols for diamond drilling and quality assurance/quality control (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% passing 200 mesh. Analytical procedures include multi-element 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% 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 NI-43-101.

Qualified Person
Jeremy Hanson, P. Geo., 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.

On Behalf of the Board of Directors

~Darryl Jones~

Darryl Jones
CEO, President & Director
Star Copper Corp.

About Star Copper Corp. (CSE:STCU)(OTCQX:STCUF)(FWB:SOP/WKN A416ME)
Star Copper Corp. is an exploration and development company focused on developing high-potential copper projects in mining-friendly jurisdictions. The Company aims to advance its 100%-owned Star Project in British Columbia's prolific Golden Triangle and Sheslay District. 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, environmental baseline studies and permitting groundwork alongside data analysis and resource modeling 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.

For more information visit: www.starcopper.com and to sign up for free news alerts please go to https://starcopper.com/news/news-alerts/, or follow us on X (formerly Twitter),Facebook or LinkedIn. More information in respect of the project, including historical drilling, is available under the Company's profile at www.sedarplus.ca and/or in the Company's February 26, 2025 technical report.

Investor Relations
Star Copper Corp.
Email: info@starcopper.com
Web: https://starcopper.com/

Cautionary Note Regarding Forward-Looking Statements
This news release contains forward-looking statements and other statements that are not historical facts. Forward-looking statements are often identified by terms such as "will", "may", "should", "anticipate", "expects" and similar expressions. All statements other than statements of historical fact, included in this news release are forward-looking statements that involve risks and uncertainties. Forward-looking statements in this press release include, but are not limited to, statements regarding exploration of the Company's flagship Star Project and the potential thereof, as well as the anticipated mineral resource estimate planned in respect of the Star Project. There can be no assurance that such statements will prove to be accurate and actual results and future events could differ materially from those anticipated in such statements. Important factors that could cause actual results to differ materially from the Company's expectations include, but are not limited to, the early-stage nature of the Star Project, the inherently unpredictable nature of resource exploration, market conditions and the risks detailed from time to time in the filings made by the Company with securities regulators. The reader is cautioned that assumptions used in the preparation of any forward-looking information may prove to be incorrect. Events or circumstances may cause actual results to differ materially from those predicted, as a result of numerous known and unknown risks, uncertainties, and other factors, many of which are beyond the control of the Company. The reader is cautioned not to place undue reliance on any forward-looking information. Such information, although considered reasonable by management at the time of preparation, may prove to be incorrect, and actual results may differ materially from those anticipated. The forward-looking statements contained in this news release are made as of the date of this news release and the Company will update or revise publicly any of the included forward-looking statements as expressly required by applicable law. Forward-looking statements contained in this news release are expressly qualified by this cautionary statement.

SOURCE: Star Copper Corp.

View the original press release on ACCESS Newswire

FAQ

What is the purpose of Star Copper's SN-25-001 drill hole at Star North (STCUF)?

SN-25-001 is designed to test the heart of the Star North target to 400 m, evaluating geophysics, alteration and sulphide distribution beneath Cu-in-soil trends.

How deep is Star Copper's current drill hole SN-25-001 and what is the planned depth?

SN-25-001 is currently at 144 m and is planned to reach 400 m.

What high-grade rock samples did Star Copper report from Star North in 2025 (STCUF)?

Select 2025 samples include AA002620: 17.6% Cu, 0.942 g/t Au and AA002628: 3.21% Cu.

How large is the soil copper anomaly at Star North near Star Main (STCUF)?

The Star North target has a coincident soil copper geochemistry anomaly measuring approximately 500 m x 1000 m.

Which lab and QA/QC protocols is Star Copper using for Star North samples (STCUF)?

Samples are sent under chain-of-custody to Bureau Veritas with multi-element ICP and fire assay for gold; a minimum 5% certified standards, blanks and duplicates program is applied.