Dr. Elena Clarici reports

ELECTRUM DISCOVERY ADVANCES AMT GEOPHYSICAL SURVEY AT TIMOK EAST, IDENTIFYING ADDITIONAL DRILL TARGETS

Electrum Discovery Corp. has completed and received inversion results for the phase 2 audio-magnetotelluric (AMT) survey at the company's copper-gold Timok East exploration project, located within the prolific Western Tethyan belt in the Republic of Serbia. Additionally, dating results have been received for a recently discovered zone of andesite, confirming a Late Cretaceous age.

Highlights:

• Fieldwork completed and results received for a 12.5-square-kilometre phase 2 AMT survey covering the western part of the Timok East project;
• The new combined AMT model using stations from both surveys has significantly extended the 3-D resistivity model and highlighted two distinctive zones of high conductivity at 250 to 550 metres depth;
• Late Cretaceous age confirmed for specimen of andesite within the Limestone Boundary magnetic anomaly of Timok East, underpinning search space for porphyry and/or epithermal mineralization related to the Timok magmatic complex;
• Combined results from phase 1 and phase 2 AMT survey generate new compelling drill targets.

Dr. Elena Clarici, chief executive officer and president of Electrum, commented: "The integration of AMT results from our previous and new surveys, andesitic units found in the Limestone Boundary magnetic anomaly, and dating studies confirming the andesites to be Late Cretaceous has provided additional confidence that the footprint of magmatism related to the Timok magmatic complex extends further to the east into Timok East. The new combined AMT model using stations from both surveys has significantly extended the 3-D resistivity model and highlighted two distinctive zones of high conductivity at 250 to 550 metres depth. Their geometry and position relative to mapped stratigraphy are highly encouraging for porphyry and related hydrothermal mineralization. These results provide a strong technical basis for advancing these new targets into a drill-ready stage in 2026."

Timok East -- audio-magnetotelluric survey

Electrum continues to advance exploration at its Timok East project, located within the Western Tethyan belt and adjacent to several world-class porphyry copper-gold deposits. Exploration to date has identified multiple geophysical and geochemical anomalous zones, including the Western Mag, Bambino and Limestone Contact targets.

During Q4 2025, Electrum engaged 3-D Consulting-Geo GmbH to conduct a phase 2 of a broadband audio-magnetotelluric geophysical survey with 41 measuring stations, over an area of five kilometres by 2.5 kilometres.

The objective of the survey was to refine and extend the subsurface resistivity model from a previous AMT survey completed in early 2025 (see the company's news release dated Feb. 19, 2025) and to identify additional zones of high conductivity or resistivity that could represent potential intrusions, alteration or mineralization related to large-scale concealed copper-plus-or-minus-gold systems.

The survey was contiguous with the earlier AMT survey, also carried out by 3-D Consulting-Geo using the same equipment and results were processed using the same methodology; data from both surveys were combined to form an updated 3-D model of subsurface resistivity.

Two areas of high conductivity, at depths of approximately 250 to approximately 550 metres below surface, are seen in the 3-D modelled resistivity from the extended AMT survey. These target zones are at depth below areas of Jurassic and Cretaceous limestones and sedimentary/volcanic units at surface with potential to host intrusive units and possible associated mineralization of the Timok magmatic complex (TMC). The company considers these zones as high priority for future scout drilling.

AMT is a passive geophysical exploration technique used to map subsurface resistivity and conductivity to depths of over five kilometres by measuring natural electromagnetic fields generated by global lightning strikes and ionospheric currents.

Limestone Boundary magnetic anomaly confirmed to contain Upper Cretaceous andesite

Electrum has recently received the results of age dating for an andesitic unit found as subcrop and float within the Limestone Boundary magnetic anomaly.

Uranium-lead analyses performed at the University of Portsmouth by LA-ICP-MS of apatite have provided an age of 94.8 plus or minus 4.6 million years. This Late Cretaceous age overlaps the earliest zircon-based ages of approximately 90 million years reported for Timok andesites and the unit is currently interpreted to represent an early intrusive stage of Timok magmatism at the eastern boundary of Jurassic limestone units or within the metasedimentary basement units.

Together with the targets from the AMT survey, the Late Cretaceous age of the andesitic unit within the Limestone Boundary magnetic anomaly supports the potential for undiscovered porphyry and/or epithermal systems to the east of what has traditionally been considered the limit to the Timok magmatic complex.

Qualified person

The scientific and technical contents of this news release have been reviewed and approved by Thomas Sant, BSc, FGS, CGeol, EurGeol. Mr. Sant is a non-independent qualified person as defined by National Instrument 43-101 and a retained technical adviser to the company.

About Electrum Discovery Corp.

Electrum Discovery is a Canadian-based, growth-oriented company, committed to increasing shareholder value through advancement of our two projects: Novo Tlamino (gold/silver) and Timok East (copper/gold), located in two known mineralized districts within the prolific Western Tethyan belt in the Republic of Serbia.

Electrum Discovery is looking to maximize the value of its mineral projects for all stakeholders, including the company's shareholders and the local community and government, while fostering sustainability, governance and knowledge transfer in the region.

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