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Kobrea Significantly Expands El Perdido Porphyry Target - Mendoza Province, Argentina

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Kobrea Exploration Corp. (OTCQB: KBXFF) has announced significant expansion of its El Perdido porphyry Cu-Au-Mo system in Argentina's Mendoza Province. The company's recent airborne magnetometry survey and ASTER analysis have revealed that the system extends to 2 kilometers by 2 kilometers, with a notable 1,700 metre by 250 metre hydrothermal breccia unit at its center.

The company has secured necessary permits for road construction and diamond drilling, with a contract signed with Conosur Drilling S.A. The El Perdido Project, spanning 6,878 hectares, is part of Kobrea's larger 733 km² Western Malargüe Copper Projects, where the company has rights to earn 100% interest in 7 projects.

Kobrea Exploration Corp. (OTCQB: KBXFF) ha annunciato una significativa espansione del suo sistema porfirico Cu-Au-Mo El Perdido nella provincia di Mendoza, Argentina. L'ultima indagine aeromagnetica e l'analisi ASTER hanno rivelato che il sistema si estende per 2 chilometri per 2 chilometri, con una notevole unità di breccia idrotermale di 1.700 metri per 250 metri al centro.

L'azienda ha ottenuto i permessi necessari per la costruzione di strade e per perforazioni diamantate, firmando un contratto con Conosur Drilling S.A. Il progetto El Perdido, che copre 6.878 ettari, fa parte dei più ampi Western Malargüe Copper Projects di Kobrea, che si estendono su 733 km², dove la società ha il diritto di acquisire il 100% di interesse in 7 progetti.

Kobrea Exploration Corp. (OTCQB: KBXFF) ha anunciado una expansión significativa de su sistema porfírico Cu-Au-Mo El Perdido en la provincia de Mendoza, Argentina. La reciente encuesta aeromagnética y el análisis ASTER han revelado que el sistema se extiende a 2 kilómetros por 2 kilómetros, con una notable unidad de brecha hidrotermal de 1,700 metros por 250 metros en su centro.

La compañía ha obtenido los permisos necesarios para la construcción de caminos y perforación diamantina, firmando un contrato con Conosur Drilling S.A. El proyecto El Perdido, que abarca 6,878 hectáreas, forma parte de los más amplios Western Malargüe Copper Projects de Kobrea, que cubren 733 km², donde la empresa tiene derechos para adquirir el 100% de interés en 7 proyectos.

Kobrea Exploration Corp. (OTCQB: KBXFF)는 아르헨티나 멘도사 주에 위치한 엘 페르디도 포피리 Cu-Au-Mo 시스템의 대규모 확장을 발표했습니다. 최근 항공 자기 조사와 ASTER 분석 결과, 이 시스템은 2km x 2km에 걸쳐 확장되어 있으며 중심부에는 1,700m x 250m 크기의 열수성 브레시아 단위가 두드러지게 나타났습니다.

회사는 도로 건설 및 다이아몬드 시추를 위한 필수 허가를 확보했으며, Conosur Drilling S.A.와 계약을 체결했습니다. 엘 페르디도 프로젝트는 6,878헥타르에 걸쳐 있으며, 이는 Kobrea의 더 큰 733km² 서부 말라르게 구리 프로젝트의 일부로, 회사는 7개 프로젝트에서 100% 지분을 취득할 권리를 보유하고 있습니다.

Kobrea Exploration Corp. (OTCQB: KBXFF) a annoncé une expansion significative de son système porphyrique Cu-Au-Mo El Perdido dans la province de Mendoza, en Argentine. La récente enquête magnétométrique aéroportée et l'analyse ASTER ont révélé que le système s'étend sur 2 kilomètres par 2 kilomètres, avec une unité notable de brèche hydrothermale de 1 700 mètres par 250 mètres en son centre.

L'entreprise a obtenu les permis nécessaires pour la construction de routes et le forage diamanté, avec un contrat signé avec Conosur Drilling S.A. Le projet El Perdido, couvrant 6 878 hectares, fait partie des plus vastes Western Malargüe Copper Projects de Kobrea, qui s'étendent sur 733 km², où la société détient les droits pour acquérir 100 % d'intérêt dans 7 projets.

Kobrea Exploration Corp. (OTCQB: KBXFF) hat eine bedeutende Erweiterung seines El Perdido Porphyr-Cu-Au-Mo-Systems in der Provinz Mendoza, Argentinien, bekannt gegeben. Die jüngste luftgestützte Magnetometrie-Untersuchung und ASTER-Analyse zeigten, dass sich das System auf 2 Kilometer mal 2 Kilometer erstreckt, mit einer markanten 1.700 Meter mal 250 Meter großen hydrothermalen Brekzien-Einheit im Zentrum.

Das Unternehmen hat die erforderlichen Genehmigungen für den Straßenbau und Diamantbohrungen erhalten und einen Vertrag mit Conosur Drilling S.A. unterzeichnet. Das El Perdido-Projekt umfasst 6.878 Hektar und ist Teil der größeren Western Malargüe Kupferprojekte von Kobrea mit einer Fläche von 733 km², bei denen das Unternehmen das Recht hat, 100 % der Anteile an 7 Projekten zu erwerben.

Positive
  • None.
Negative
  • Property has not seen any drilling to date
  • System continues under colluvial cover, potentially making exploration more challenging

Vancouver, British Columbia--(Newsfile Corp. - August 6, 2025) - Kobrea Exploration Corp. (CSE: KBX) (FSE: F3I) (OTCQB: KBXFF) ("Kobrea" or the "Company") presents results of airborne magnetometry and ASTER analysis at the El Perdido porphyry system within the Company's Western Malargüe Copper Projects (the "Property"). The 6,878-hectare El Perdido Project is host to a porphyry Cu-Au-Mo system that has been defined at surface but has not seen any drilling to date. Kobrea holds the right to earn a 100% interest in 7 projects totaling 733 km2 in southwestern Mendoza Province, Argentina (see the Company's August 19, 2024 news release for details).

Highlights:

  • Kobrea expands the interpreted system to 2 kilometers by 2 kilometers
    • The magnetic response of the system continues to the east under colluvial cover
    • ASTER analysis indicates hydrothermal alteration extends to the east and to the southeast beyond the extents of historical mapping
    • A 1,700 metre by 250 metre hydrothermal breccia unit is interpreted as the center of the El Perdido porphyry system
  • El Perdido is permitted for road construction and diamond drilling (see the Company's July 29, 2025 news release for further details)
    • A drill contract has been signed for the upcoming diamond drilling program

"The results of the airborne magnetometer survey support our interpretation that the El Perdido porphyry system is larger than previously recognized," commented James Hedalen, CEO of Kobrea. "Our interpretation is supported further by the recently completed ASTER study that shows hydrothermal alteration extending to the east and southeast of the historically defined limits significantly increasing the size potential of this target that will be drill tested for the first time this upcoming exploration season."

2025 Airborne Magnetometer Survey — El Perdido

Processing of recently acquired magnetic data over El Perdido supports the Company's interpretation that the porphyry system continues under cover to the east of prominent exposures of hydrothermal breccia. Current data suggests the hydrothermal breccia marks the approximate centre of a northeast-elongated porphyry system. The property-wide magnetic survey completed by Kobrea in April/May 2025 was processed by a third-party geophysical consultant, who accounted for micro-leveling of collected data, magnetic remanence, and spatial positioning of magnetic data measurements. Constrained inversion modelling corresponded with exposed geology, in particular the position of a north-trending zone of hydrothermal breccia (Figure 1, and 3).

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Figure 1 — (A) Interpreted geological cross-section at El Perdido porphyry Cu-Au-Mo target showing hydrothermal breccia relative to hydrothermal alteration and geology (looking due north). (B) Oblique view of magnetic inversion model at El Perdido relative to El Perdido alteration footprint (looking 350°).

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2025 ASTER Study — El Perdido

Analysis of Advanced Spaceborne Thermal Emission and Reflection Radiometer (ASTER) data over El Perdido indicates additional exploration potential to the east and southeast of the ridge of hydrothermal breccia. This conclusion is consistent with patterns in recently acquired magnetic data. ASTER maps phyllic and argillic alteration minerals persisting further east and southeast of the alteration limits outlined by the previous operator, as shown in Figure 2. The study of ASTER data was commissioned by Kobrea in May 2025 to evaluate alteration signatures and compare the El Perdido response with other large porphyry systems in the region.

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Figure 2 — (A) Plan view map of El Perdido porphyry system showing hydrothermal alteration mapping and rock geochemistry. The solid black line is the interpreted limit of phyllic or sericite-pyrite alteration as determined from ASTER response and outcrop mapping. (B) Plan view map showing phyllic and argillic alteration as indicated by 2025 ASTER analysis.

To view an enhanced version of this graphic, please visit:
https://images.newsfilecorp.com/files/10375/261414_5927ecc5b4a2d8b2_002full.jpg

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Figure 3 — Hydrothermal breccia with A-veined clast. Photo taken at interpreted center of El Perdido porphyry Cu-Au-Mo target. Field relations show breccia emplacement preceded the phyllic alteration event.

To view an enhanced version of this graphic, please visit:
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The presence of hydrothermal breccias at porphyry prospects on the Property is significant as hydrothermal breccias, both mineralized and unmineralized, are important components of the mineral systems within the Late Miocene — Early Pliocene porphyry belt, including the giant El Teniente, Los Bronces — Rio Blanco and Los Pelambres copper deposits. Field investigations in 2025 identified hydrothermal breccias at El Perdido encompassing an area of 1,700 metres by 250 metres, oriented north-northwest — south-southeast.

Permitting & Drill Contractor

The Directorate of Mining and the Directorate of Environmental Protection of the Province of Mendoza, Argentina, have issued Resolution Nº 246/25 and Resolution Nº 64/25 approving the Company's Environmental Impact Report update for the El Perdido mining project, which includes the Company's Phase 1 exploration plan to construct approximately 14 kilometres of mining access road, install a temporary exploration camp and complete diamond drilling activities at the El Perdido porphyry copper-gold-molybdenum system.

The Company has signed a drilling contract with Conosur Drilling S.A. ("Conosur") for the upcoming drill program. Conosur is a Mendoza-based, highly experienced and professional drilling service company with a strong commitment to safety, environment, and communities. Drilling will commence upon completion of the access road and construction of the exploration camp, which will begin as soon as practicable.

Qualified Person

The scientific and technical information in this news release has been reviewed and approved by Rory Ritchie, P.Geo., VP - Exploration and Director of Kobrea and a Qualified Person under National Instrument 43-101.

About Kobrea

Kobrea Exploration Corp. is a mineral exploration & development company focused on the acquisition and exploration of base metal projects. Kobrea holds the right to earn a 100% interest in 7 projects totaling 733 km2 in southwestern Mendoza Province, Argentina (see the Company's August 19, 2024 news release for details). The properties are considered highly prospective for porphyry copper and porphyry copper-gold deposits. Numerous porphyry copper targets have been outlined to date exhibiting multi-kilometre hydrothermal alteration footprints, anomalous copper ± gold ± molybdenum geochemistry, quartz stockwork veining, localized hydrothermal breccias and Miocene aged granodioritic to dioritic porphyry intrusions. Kobrea also holds a 100% interest in the Upland Copper Project in British Columbia, Canada.

For more information, please consult the Company's filings, available at www.sedarplus.ca.

ON BEHALF OF THE BOARD OF DIRECTORS

Per: "James Hedalen"
James Hedalen
CEO & Director

Contact Information

James Hedalen
CEO & Director
Mobile: (778) 322-9066
Email: James@kobreaexploration.com

Forward-Looking Statements

This press release contains certain forward-looking statements within the meaning of applicable securities laws with respect to the Company, including statements respecting the timing and details of any planned exploration programs and drill programs at the Property and the potential results thereof; and the implications of results from recent magnetometry and ASTER analysis at the Property. These forward-looking statements generally are identified by words such as "believe," "project," "aim," "expect," "anticipate," "estimate," "intend," "strategy," "future," "opportunity," "plan," "may," "should," "will," "would," and similar expressions. Although the Company believes that the expectations and assumptions on which such forward-looking statements and information are based are reasonable, undue reliance should not be placed on the forward-looking statements and information because the Company can give no assurance that they will prove to be correct. Since forward-looking statements and information address future events and conditions, by their very nature they involve inherent risks and uncertainties. Many factors could cause actual future events to differ materially from the forward-looking statements in this press release. The forward-looking statements included in this news release are expressly qualified by this cautionary statement. The forward-looking statements and information contained in this news release are made as of the date hereof and the Company undertakes no obligation to update publicly or revise any forward-looking statements or information, whether as a result of new information, future events or otherwise, unless so required by applicable laws.

The Canadian Securities Exchange has not reviewed this press release and does not accept responsibility for the adequacy or accuracy of this news release.

To view the source version of this press release, please visit https://www.newsfilecorp.com/release/261414

FAQ

What is the size of Kobrea's El Perdido porphyry system expansion in 2025?

The El Perdido porphyry system has been expanded to 2 kilometers by 2 kilometers, with a central hydrothermal breccia unit measuring 1,700 metres by 250 metres.

What permits has KBXFF received for the El Perdido project in Argentina?

Kobrea has received Resolution N° 246/25 and Resolution N° 64/25 approving their Environmental Impact Report for road construction, temporary camp installation, and diamond drilling activities.

How many projects does Kobrea have in Mendoza Province, Argentina?

Kobrea holds the right to earn 100% interest in 7 projects totaling 733 km² in southwestern Mendoza Province, Argentina.

What did the 2025 ASTER study reveal about El Perdido's exploration potential?

The ASTER study revealed additional exploration potential to the east and southeast of the hydrothermal breccia ridge, showing persistent phyllic and argillic alteration minerals beyond previously mapped limits.

Who will conduct the drilling program at El Perdido for Kobrea?

Conosur Drilling S.A., a Mendoza-based professional drilling service company, has been contracted to conduct the upcoming drilling program.
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