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

VANCOUVER, British Columbia, Oct. 08, 2025 (GLOBE NEWSWIRE) -- 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 activity 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 Mining 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.