Kobrea Confirms Copper-Gold-Molybdenum Porphyry System at El Perdido Project, Mendoza Province, Argentina

Vancouver, British Columbia--(Newsfile Corp. - May 26, 2026) - Kobrea Exploration Corp. (CSE: KBX) (FSE: F3I) (OTCQB: KBXFF) (" Kobrea " or the " Company ") reports completion of its Phase 1 diamond drill program at the El Perdido porphyry copper-gold-molybdenum system in Mendoza, Argentina. A total of 2,358 metres were drilled across six holes, confirming the presence of a large hydrothermal porphyry system with copper, gold, molybdenum and silver mineralization. Geological observations from drilling indicate the porphyry system strengthens at depth, with increased intensity of alteration, veining and sulphide assemblages.

The core of the system remains untested. Kobrea holds the right to earn a 100% interest in 7 projects totaling 733 km 2 in southwestern Mendoza Province, Argentina ( see the Company's August 19, 2024, news release for details ). Multiple kilometer scale porphyry targets across the 7 projects have been worked up this season in preparation for drilling.

El Perdido is the only target with an initial drill test and additional drilling is warranted. Highlights First ever drilling confirms a large copper-gold-molybdenum porphyry system Six diamond drill holes totaling 2,358 metres were completed during the 2026 Phase 1 program Drilling intersected widespread porphyry-style mineralization, quartz-stockwork veining and localized potassic alteration Three drill holes with copper mineralization stopped short at shallow depth in a fault system Alternative drill equipment and techniques are being sourced to address this issue Geological observations suggest the core of the porphyry system remains at depth and untested Only a portion of the 2 km by 2 km target area was drill tested during the inaugural campaign "This first-ever drill program at El Perdido has confirmed a large, mineralized porphyry system. The copper, gold and molybdenum grades intersected to date are consistent with the margins and upper levels of a porphyry system," commented James Hedalen,