Mr. Adam Travis reports

COAST COPPER ACQUIRES 80 KMS OF PROSPECTIVE PORPHYRY CLAIMS ALONG WESTERN SIDE OF THE TOODOGGONE CAMP

Coast Copper Corp. has acquired three new properties through staking in the Toodoggone mining camp of north-central British Columbia. The properties were recently granted under the new B.C. mineral claims consultation framework. The Goldfinger, Thunderball and Moonraker properties total approximately 18,683 hectares (ha) and, together with the Borealis property, which Coast Copper sold to Hi-View Resources Inc. (see news release dated Sept. 24, 2025), cover a continuous 90-kilometre-long (km) belt along the western side of the Toodoggone camp. These three new properties, along with the company's Loren and Northern Contact properties on the eastern side of the Toodoggone camp, now total approximately 21,156 ha and make Coast Copper the single largest acquirer of new claims in the Toodoggone since the Aurora discovery by Amarc Resources Ltd., announced on Jan. 17, 2025 (1).

Exploration rationale for largest new claim acquisitions in the Toodoggone camp

After the January, 2025, announcement by Amarc of its Aurora porphyry discovery, the company immediately recognized its significance and acquired mineral claims on the morning of that announcement, consisting of the Borealis, Loren and Northern Contact properties.

Continued detailed review of regional geology, regional airborne magnetics, historical assessment reports and satellite imagery along the western edge of the Toodoggone camp suggests that the favourable porphyry setting of volcanics and intrusions extends further westward than regionally mapped and in some instances are covered by thin, younger sedimentary and/or glacial cover. Further proof of this concept is evidenced at the Borealis property where regional airborne magnetics and review of assessment reports and satellite imagery have shown the presence of a favourable porphyry setting with intrusions and volcanics and a sizable induced polarization survey anomaly.

Encouraged by these findings and after conducting detailed research all along the western side of the Toodoggone camp, the company submitted the single largest claim application package in the Toodoggone in the Bond properties.

Strategic land package acquisition of Bond properties

Goldfinger property

The Goldfinger property encompasses more than a 30 km northwest-southeast trend (6,994 ha) alongside the western edge of Hi-View Resources' Golden Stranger, Lawyer's North, Lawyer's West and Lawyer's East targets (1), and where the company has noted areas underlain by favourable volcanics, magnetic highs and magnetic lows all the way to the Borealis property in the south.

Thunderball property

The Thunderball property encompasses a 25 km northwest-southeast trend (4,594 ha) alongside the western and southern edge of Centerra Gold Inc.'s Kemess mine property (1), and covers favourable magnetic highs and structures southerly from the Borealis property.

Moonraker property

The Moonraker property encompasses a 25 km west-east trend (7,095 ha) and wraps around the northern side of NorthWest Copper Corp.'s East Niv property, and covers an area underlain by favourable volcanics, stream sediment anomalies, airborne magnetic highs and alteration zones noted in satellite imagery (1).

Now that this significant mineral claim package has been granted, the company is planning to conduct a detailed airborne magnetic survey as soon as weather conditions allow.

Qualified persons

The technical information contained in this news release has been prepared, reviewed and approved by Wade Barnes, PGeo (British Columbia), Coast Copper's geological consultant and a qualified person within the context of the Canadian Securities Administrators' National Instrument 43-101, Standards of Disclosure for Mineral Projects.

About Coast Copper Corp.

Coast Copper's flagship projects are the Copper Kettle postdiscovery Cu-Au-Mo (copper-gold-molybdenum) project located in the Island Copper Cluster on northern Vancouver Island, the former-producing Cu-Au Empire mine, also located on Northern Vancouver Island, and the former-producing Emerald and Virginia silver mines, located near the Huckleberry mine and Smithers in Northern British Columbia. Coast has an additional 18 projects in B.C. that are available for acquisition, partnering or option that are strategically located in seven advanced mining camps that include the Toodoggone, Golden Triangle Anyox, Goliath Resources (Golddigger), Babine, Bralorne and Sullivan camps providing exposure and leverage to millions of dollars being spent on neighboring properties. Coast Copper's strategy is to optimize the value of each mineral property within its portfolio through a combination of prospect generation and discovery focused, high-impact exploration while minimizing share dilution through active deal-making.

(1) This news release may contain information about adjacent properties on which Coast Copper has no right to explore or mine. Investors are cautioned that mineral deposits on adjacent properties are not indicative of mineral deposits on the company's properties.

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