Mr. Adam Travis reports

COAST COPPER EXTENDS GOLD IN SOIL ANOMALY AROUND B3 SHOWING AND IDENTIFIES EMERGENCE OF A NEW MIDDLE-MINERALIZED TREND AT EMPIRE MINE

Coast Copper Corp. has provided results from a September, 2023, field program following up on several geophysical and gold-in-soil anomalies at its optioned Empire mine property on northern Vancouver Island, B.C. This exploration work included expanding the gold, copper and tellurium in soil and rock anomaly to over a 250-metre-by-500-metre area around the newly discovered B3 showing (see Aug. 21, 2023, news release), which reported several chip samples averaging 31.60 grams per tonne Au, 15.97 g/t Te and 0.11 per cent cobalt in sample MWR2023-009. Additional work included initial prospecting and sampling in an underexplored one-kilometre-by-two-kilometre area between the upper Merry Widow trend and lower Benson Lake mine trend, known as the Middle trend. This area was highlighted during geological compilation and fits with the model of probable multiple stacked thrust systems, which indicate potential for mineralization in this area. Preliminary investigations show promising initial surface results. A total of 76 soil and 25 rock samples were collected during this field program from targeted areas across the Upper and Middle trend zones on the property.

Adam Travis, Coast Copper chief executive officer, comments: "With ongoing exploration we continue to expand our understanding, and size potential of mineral occurrences at Empire mine. We enlarged our coverage around our new B3 discovery, approximately 500 m south of the Merry Widow pit, and as a result the gold, copper and tellurium anomaly is at least 250 m in strike length. Since the discovery of B3 earlier this year, we have taken a total of 21 soil samples in the area that have returned values greater than 80 parts per billion (ppb) gold, with sample MWS2023-018 returning 3,931 ppb Au. This anomaly is open to the north below the historical waste dumps. To the south, a newly discovered rock float sample returned 9.60 g/t Au suggesting a potential link of the B3 area to the Bluebird 1 area 250 metres further to the south where four rock samples have returned greater than two g/t Au. We also completed initial prospecting and sampling in the relatively underexplored Middle trend area between the Upper trend and Lower trend returning some highly anomalous copper and gold in rock and soil samples. This reinforces our model of multiple stacked thrusts, or horizons, that can host mineralization at many levels through the one km thick limestone package, and that new discoveries can continue to be made in an old camp."

B3 zone (250 m by 500 m area with soil samples up to 3,931 ppb Au and chip samples up to 51.60 g/t Au -- announced Aug. 21, 2023)

Coast Copper's technical team collected 42 soil samples and 10 rock samples in the area surrounding the B3 discovery, specifically between the Bluebird 1, Marten and Snowline mineral occurrences. Notable assay results from sampling include outcrop samples up to 11.1 g/t Au and up to 191.50 g/t Te above the Snowline showing, a 9.60 g/t Au rock float sample and 368 ppb Au in soil samples between Bluebird 1 and Bluebird 2, and up to 2,100 ppb Au in soil samples down slope of Snowline. This work has extended the soil anomaly to an area roughly 250 m in width and 500 m in length and shows good potential to link the Bluebird 1, Bluebird 2 and Snowline showings with the newly discovered B3 showing.

Emerging Middle trend (one km by two km area between Upper trend and Lower trend)

Fieldwork by Dr. Jim Oliver in 2022 identified the presence and importance of regional thrust systems in the Merry Widow pit and along the Upper trend (see Jan. 18, 2023, news release). A thorough review of the recent drill hole data and relevant historical work led to a geological model of multiple stacked thrust faults, or thrust panels, occurring between the Upper trend and the Lower trend, potentially linking up mineralization between these deposit areas. The importance of cross structures within these favourable trends has also been recognized as a significant control on mineralization across the property.

This concept was further validated when examining historical drill hole logs from 2007 located above the Benson Lake mine which indicated mineralized intervals occurring hundreds of metres above the Benson Lake mine in areas that should have been barren limestone. As such, initial prospecting and sampling were completed with the expectation that mineralization could occur within this one km by two km area, that had previously seen no systematic work.

Coast Copper's preliminary work in this area that was previously not thought to be prospective shows promising copper and gold values from both rock and soil samples. A total of 34 rock and 15 soil samples were taken across the emerging Middle trend zone. Rock samples returned assay values up to 1.90 per cent Cu and up to 1.25 g/t Au, with one soil sample returning 9,995 ppm Cu and 1,210 ppb Au. These encouraging results indicate that further work is warranted in this area.

Quality assurance/quality control procedures

Soil samples were taken at 25 m spacings when possible and by up to 50 m spacings in areas of interest. All samples were taken from the B horizon soil profile.

Sampling completed on the project in 2023 was supervised by on-site Coast Copper personnel and subcontractors who collected and tracked samples and implemented a full QA/QC program using blanks, standards and duplicates to monitor analytical accuracy and precision. The samples were sealed on site and shipped to MSA Labs in Langley, B.C., for analysis. MSA Labs' quality control system complies with global certifications for quality ISO9001:2008. Soil samples were dried and screened to 80 mesh and then analyzed in 20-gram samples with multielement inductively coupled plasma mass spectrometry aqua regia digestion (IMS-111). Rock samples were dried and crushed to 70 per cent passing two-millimetre-mesh and split to 250-gram samples which were pulverized to 85 per cent passing 75 micrometres and then analyzed by aqua regia, inductively coupled plasma atomic emission spectroscopy/mass spectrometry (IMS-131). Copper assays greater than 10,000 ppm were completed with ICF-6Cu, four-acid, ICP-AES ore-grade analysis.

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 exploration focus is the optioned Empire mine property, located on northern Vancouver Island, B.C.,, which covers three historical open-pit mines and two past-producing underground mines that yielded iron, copper, gold and silver. Coast Copper's other properties include its 100-per-cent-owned Knob Hill NW property located on northern Vancouver Island, its Home Brew property in central B.C. and its Scottie West property located in the Golden Triangle of Northern B.C. Coast Copper's management team continues to review precious and base metals opportunities in western North America.

We seek Safe Harbor.