COCO.V · 2026-02-18 12:00:00

Coast Copper Expands Copper Kettle Property and Identifies Major Untested Porphyry Target

Exploration Programs

Coast Copper Expands Copper Kettle Property

and Identifies Major Untested Porphyry Target

TSX.V: COCO

VANCOUVER, BC

Feb. 18, 2026

/CNW/ -

Coast Copper Corp. ("Coast Copper" or "the

Company");

(TSXV: COCO) is pleased to announce new results from a 14 square kilometer ("

km²

Audio Magneto Telluric ("

AMT

") geophysical survey at its Copper Kettle property (the "

Property

"),

located within the Island Copper Belt on northern Vancouver Island,

British Columbia

"). The

Company has expanded the Property through staking, now covering more than 5,225 hectares

"), and completed an extensive technical review of the Northwest Zone ("

NW Zone

"), an

important yet historically underexplored porphyry Copper ("

")-Molybdenum ("

") occurrence

forming the northwestern end member of the productive Island Copper Cluster ("

ICC

"), hosting

BHP's former Island Copper Mine¹

(see Figure 1).

Figure 1 (CNW Group/Coast Copper Corp.)

Adam Travis

, CEO, stated:

"Earlier drilling only explored peripheral skarn-style mineralization,

leaving much of the larger porphyry potential untested. The AMT survey reveals a significant

underlying intrusion beneath zones where many holes terminating in mineralization. Our plan for

2026 is to push the project forward with a detailed Induced Polarization survey followed by drilling.

There are clear parallels between the NW Zone at Copper Kettle and the historic Island Copper

Mine (referenced in C.I.M Special Volume 46

), and we're eager to elevate this property

to flagship

status alongside our brownfield Empire Mine project which is also located on northern Vancouver

Island

NW Zone – Large, Open Porphyry System

On northern Vancouver Island, a 50 kilometer ("

") east-west trending corridor hosts a series of

Early Jurassic mineralized copper-gold ("

")-molybdenum porphyry systems. At its western end,

Coast Copper owns the Knob Hill NW property which abuts Northisle Copper and Gold Inc.'s

Hushamu and Red Dog properties

. At the eastern end, Coast Copper owns the Copper Kettle

property, adjacent to BHP's Island Copper Mine Lease. The Copper Kettle property hosts the NW

Zone², one of the six genetically related Jurassic calc-alkaline porphyry systems which form the ICC.

The ICC occupies a 10 km long structural-magnetic anomaly with the NW Zone, which is the only

member located outside BHP's Island Copper Mining Lease. The Island Copper Mine is the only

cluster member mined to date (1971 - 1995) which produced approximately 345 million tonnes with

average grades of 0.41% Cu, 0.017% Mo, 0.19 g/t Au, and 1.4 g/t silver ("

"), along with

significant rhenium

making it

Canada's

second largest copper mine at the time of production.

All six systems feature multiphase rhyodacite porphyry intrusions and characteristic alteration zones.

The NW Zone is characterized by:

A strong central magnetic high interpreted as a magnetite-rich potassic core;

Surrounding chargeability anomalies indicating a pyrite halo; and

Coincident Cu-Mo soil anomalies and peripheral skarn mineralization.

From 1983 to 1989, BHP drilled 31 diamond holes (9,072 meters ("

")) and 10 percussion holes

(

789.5 m

), outlining a buried system 1.8 km long and

800 m

wide. Seventeen drillholes returned

significant copper and molybdenum values; nine of which ended in mineralization, confirming this

system remains open to depth

Some historical drill intercepts include

Hole E-64

277.4 m

@ 0.20% Cu and 0.018% Mo (0.30% CuEq

) from

18.3 m

;

Hole E-69

91.5 m

@ 0.57% Cu and 0.017% Mo (0.66% CuEq

) from

155.4 m

, with skarn

bands up to 2.93% Cu over

3 m

from

228.6 m

; final assay 0.24% Cu and 0.047% Mo (0.50%

CuEq

) over

3 m

; and

Hole W-6

332.8 m

@ 0.15% Cu and 0.036% Mo (0.35% CuEq

) from

106 m

These findings are based on original BHP records and internal logs, compiled and reported

according to NI 43-101 standards.

2025 Coast Copper Surface Field Work Expands Target Area

Recent fieldwork expanded historical anomalies:

Confirmed an untested

800 m

400 m

Cu-in-soil anomaly (>200 parts per million ("

ppm

") Cu;

peaks at 1,800 ppm) north of historical drill sites;

Collected rock samples assaying up to 2.21%, 2.09%, and 1.86% Cu across a 5 km west-

northwest stretch; and

Discovered a new polymetallic skarn target, with assays reaching 0.46% Cu, 0.66 g/t Au, 55 g/t

Ag, 7.53% Pb, and 5.96% Zn; soils contained up to 2,842 ppm Cu.

These results indicate significant untested lateral and depth potential, largely hidden beneath glacial

cover.

December 2025

AMT Survey Highlights (see Figure 2)

The 54-station AMT survey (spaced at

500 m

) spanning 14 km² revealed:

A shallow conductive layer linked to known Cu-Mo mineralization within sediments;

A larger resistive body under historic drilling, interpreted as a possible intrusive source; and

Evidence that past drilling in the 1980s only addressed a limited portion of the broader system.

Results integrated with the 2012 Geoscience BC magnetic survey uphold the hypothesis of a

sizable, mostly untested intrusive complex beneath the NW Zone.

Next Steps

Following these findings, Coast Copper is intending to conduct a 25 km detailed Induced Polarization

survey and plans a conditional 10-site diamond drill program right beside BHP's historic Island

Copper mine.

Qualified Persons

The technical information contained in this news release has been prepared, reviewed, and

approved by

Wade Barnes

, P.Geo. (BC), Coast Copper's geological consultant and a Qualified

Person within the context of the Canadian Securities Administrators' NI 43-101; Standards of

Disclosure for Mineral Projects.

About Coast Copper Corp.

Coast Copper's flagship projects are the Copper Kettle post-discovery Cu-Au-Mo 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 B.C. 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 our portfolio through a combination of prospect generation and

discovery focused, high-impact exploration while minimizing share dilution through active deal-

making.

On Behalf of the Board of Directors:

"Adam Travis"

Adam Travis

, Chief Executive Officer and Director

Cautionary Notes in News Release and/or Maps

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.

Perello J.A., Fleming J.A., O'Kane K.P., Burt P.D., Clarke G.A., Himes M.D. and Reeves A.T.

(1995) Porphyry copper-gold-molybdenum deposits in the Island Copper Cluster, northern

Vancouver Island,

British Columbia

: CIM Special Volume 46, Part 2, p. 214-238.

Island Copper Minfile Record Summary, Minfile No 092L158, retrieved from ARIS website.

Coast Copper news release NR25-05 dated

September 8, 2025

titled: "Coast Copper

Completes Historical Compilation, Conducts Field Programs and Consolidates Copper Kettle

Property, Island Copper Belt Northern Vancouver Island."

Copper Equivalent (CuEq) shown in Tables for drill intercepts are calculated on the basis of

US$

4.50

/lb for Cu and

US$ 25

/lb for Mo, with 100% metallurgical recoveries assumed. The formula

is: CuEq. = Cu % + (Mo grade in % x (Mo recovery / Cu recovery) x [Mo price] / [Cu price]).

The assays have not been capped. The reported intervals represent drill intercepts, and

insufficient data are available at this time to state the true thickness of the mineralized intervals.

Historical information, maps or figures contained in this release regarding the Property or

adjacent properties cannot be relied upon as the Company's QP, as defined under NI-43-101

has not prepared nor verified the historical information.

Neither the TSX Venture Exchange nor its Regulation Services Provider (as that term is

defined in the policies of the TSX Venture Exchange) accepts responsibility for the adequacy

or accuracy of this release.

CAUTIONARY STATEMENT REGARDING FORWARD-LOOKING INFORMATION

Certain information contained or incorporated by reference in this press release, including any

information

regarding the proposed Transaction, private placement, board and management

changes,

as to

our strategy, projects, plans or future financial or operating performance, constitutes

"forward-looking statements." All statements, other than statements of historical fact, are to be

considered forward-looking statements. Forward-looking statements are necessarily based on a

number of estimates and assumptions that, while considered reasonable by Coast Copper, are

inherently subject to significant business, economic, geological and competitive uncertainties and

contingencies. Although Coast Copper believes the expectations expressed in such forward-

looking statements are based on reasonable assumptions, such statements are not a guarantee of

future performance. Known and unknown factors could cause actual results to differ materially

from those projected in the forward-looking statements. Such factors include but are not limited to:

fluctuations in market prices, exploration and exploitation successes, continued availability of

capital and financing, changes in national and local government legislation, taxation, controls,

regulations, expropriation or nationalization of property and general political, economic, market or

business conditions. Many of these uncertainties and contingencies can affect our actual results

and could cause actual results to differ materially from those expressed or implied in any forward-

looking statements made by, or on behalf of, us. Readers are cautioned that forward-looking

statements are not guarantees of future performance and, therefore, readers are advised to rely on

their own evaluation of such uncertainties. All of the forward-looking statements made in this press

release, or incorporated by reference, are qualified by these cautionary statements. We do not

assume any obligation to update any forward-looking statements.

Figure 2 (CNW Group/Coast Copper Corp.)

SOURCE

Coast Copper Corp.

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For further information:

For further information, please contact: Adam Travis, CEO, Coast Copper

Corp., 409 Granville Street, Suite 904, Vancouver, BC, V6C 1T2, Canada, P: 877-578-9563, E:

[email protected], NR25-03

CO: Coast Copper Corp.

CNW 07:30e 18-FEB-26

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