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KRY.V ·

Koryx Files Updated PEA FOR the Haib Copper Project, Southern Namibia

Economic Studies

Koryx Copper Inc.

Suite 888, 700 West Georgia Street,

Vancouver. BC, V7Y 1G5

Canada

KORYX FILES UPDATED PEA FOR THE

HAIB COPPER PROJECT, SOUTHERN NAMIBIA

Vancouver, B.C., Canada – October 8, 2025 – Koryx Copper Inc. (“ Koryx” or the " Company") (TSX-V: KRY) is

pleased to announce filing of the recently completed Preliminary Economic Assessment (“ PEA”) of the

Company’s 100%-owned, flagship Haib Copper Project (“ Haib” or the “ Project”) in southern Namibia. The

results of the PEA were announced in the Company's news release on September 4, 2025. The technical report

comprising the PEA is entitled, “Preliminary Economic Assessment of the Haib Copper Project, Namibia,

National Instrument 43 -101 Technical Report ” dated effective September 4, 2025 (the "Technical Report").

The Technical Report is publicly filed and is accessible under the Company's profile on SEDAR+ at

www.sedarplus.ca.

Qualified Persons

The Qualified Person for the mineral resource estimate in the PEA is Mr. Jeremy C. Witley (BSc Hons, MSc

(Eng.)) and he has reviewed and approved the scientific and technical information in this news release. Mr.

Witley is a geologist with more than 35 years’ experience in base and precious metals exploration and mining

as well as mineral resource evaluation and reporting. He is Head of Mineral Resources for The MSA Group, is

independent of the Company and its mineral properties (an independent consulting company), is registered

with the South African Council for Natural Scientific Professions (SACNASP) and is a Fellow of the Geological

Society of South Africa (GSSA). Mr. Witley has the appropriate relevant qualifications and experience to be

considered a “Qualified Person” for the style and type of mineralization and acti vity being undertaken as

defined in National Instrument 43-101 Standards of Disclosure of Mineral Projects ("NI 43-101").

Mr. Werner Moeller is a Director and Principal Mining Engineering Consultant of Qubeka Mining Consultants

CC based in Windhoek, Namibia and has reviewed and approved the scientific and technical information in

this news release. He holds a BEng degree in M ining Engineering and a BEng (Hons) degree in Industrial

Engineering from the University of Pretoria (South Africa). He is a Fellow of the Australian Institute of Mining

and Metallurgy (membership number 329888) and a Member of the South African Institute of Mining and

Metallurgy (membership number 704793). Mr. Moeller has been practicing his profession continuously since

2002 and has 22 years of mine planning and operations experience across a range of African projects. Mr.

Moeller is independent of the Company and its mineral properties and is a Qualified Person for the purposes

of NI 43-101.

About Koryx Copper Inc.

Koryx Copper Inc. is a Canadian copper development Company focused on advancing the 100% owned Haib

Copper Project in Namibia whilst also building a portfolio of copper exploration licenses in Zambia. Haib is a

large, advanced (PEA-stage) copper/molybdenum porphyry deposit in southern Namibia with a long history of

exploration and project development by multiple operators. More than 80,000m of drilling has been

conducted at Haib since the 1970’s with significant exploration programs led by companies includi ng

Falconbridge (1964), Rio Tinto (1975) and Teck (2014). Extensive metallurgical testing and various technical

studies have also been completed at Haib to date.

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The Haib Copper Project has a current mineral resource of 511Mt @ 0.33% Cu and 51 ppm Mo for 1,668kt of

contained copper and 25.9 kt contained molybdenum in the Indicated category and 308.9Mt @ 0.31% Cu and

40 ppm Mo for 949kt of contained copper and 12.4 kt contained molybdenum in the Inferred category (0.15%

Cu cut-off), as described more particularly in the current Technical Report which is publicly available under the

Company's profile on SEDAR+ at www.sedarplus.ca.

Mineralization at Haib is typical of a porphyry copper deposit and it is one of only a few examples of a

Paleoproterozoic porphyry copper deposit in the world and one of only two in southern Africa (both in

Namibia). Due to its age, the deposit has been su bjected to multiple metamorphic and deformation events

but still retains many of the classic mineralization and alteration features typical of these deposits. The

mineralization is dominantly chalcopyrite with minor bornite and chalcocite present and only minor secondary

copper minerals at surface due to the arid environment.

Additional details of the Haib Copper Project are available in the Company's current Technical Report which

comprises its PEA titled, “Preliminary Economic Assessment of the Haib Copper Project, Namibia, National

Instrument 43 -101 Technical Report ” dated effective September 4, 2025 (the " Technical Report "). The

Technical Report and other information is available on the Company's website at https://koryxcopper.com and

under the Company's profile on SEDAR+ at www.sedarplus.ca.

ON BEHALF OF THE BOARD OF DIRECTORS

"Heye Daun"

President, CEO and Director

Additional information is also available by contacting the Company:

Julia Becker

Corporate Communications

[email protected]

+1-604-785-0850

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

This press release contains "forward-looking information" within the meaning of applicable Canadian securities

legislation. Forward-looking information includes, without limitation, statements regarding the use of proceeds

from the Company's recently completed financings and the future or prospects of the Company. Generally, forward-

looking information can be identified by the use of forward-looking terminology such as "plans", "expects" or "does

not expect ", "is expected ", "budget", "scheduled", "estimates", "forecasts", "intends", "anticipates" or "does not

anticipate", or "believes", or variations of such words and phrases or state that certain actions, events or results

"may", "could", "would", "might" or "will be taken", "occur" or "be achieved". Forward-looking statements are

necessarily based upon a number of assumptions that, while considered reasonable by management, are inherently

subject to business, market, and economic risks, uncertainties, and contingencies that may cause actual results,

performance, or achievements to be materially different from those expressed or implied by forward-looking

statements. Although the Company has attempted to identify important factors that could cause actual results to

differ materially from those contained in forward-looking information, other factors may cause results not to be as

anticipated, estimated, or intended. There can be no assurance that such information will prove to be accurate, as

actual results and future events could differ materially from those anticipated in such statements. Accordingly,

readers should not place undue reliance on forward-looking information. Other factors which could materially

affect such forward-looking information are described in the risk factors in the Company's most recent annual

management discussion and analysis. The Company does not undertake to update any forward-looking information,

except in accordance with applicable securities laws.