Mr. Jeffrey Ackert reports

CASCADE COPPER ANNOUNCES EXCEPTIONAL RESULTS FROM VTEM MODELLING AT THE CENTREFIRE COPPER-GOLD PROJECT -- FINALIZES DRILLHOLE SELECTION

Cascade Copper Corp. has received electromagnetic plate modelling results from the historic VTEM airborne survey performed by Geotech Ltd. in 2010. The plate modelling was created and interpreted by Mira Geoscience, which uses advanced analytical techniques to produce the 3-D inversions. The results indicate multiple highly prospective volcanogenic massive sulphide targets at and near the Main gossan zone at its Centrefire copper and gold project located approximately 40 kilometres northeast of Dryden, Ont., Canada.

Highlights:

• Two classic high-conviction VMS targets within the MGZ identified by high conductivity associated with high magnetic response;
• Additional compelling VMS targets along strike of the MGZ with similar coincident signatures to the MGZ, being referred to as the Southwest zone or SWZ;
• Potential banded iron formation gold targets separate from the VMS targets.

Jeff Ackert, president and chief executive officer for Cascade Copper, commented: "The exercise of modelling the VTEM data at Centrefire prior to drilling has created some exceptional VMS targets in and around the MGZ. On the ground, we've observed highly mineralized and highly altered volcanic rock. Sampling of trenches and outcrops has returned multiper cent copper values, multigram gold and silver values -- now backed up with several subsurface geophysical expressions of VMS mineralization. We feel that the targets are well vetted and derisked to give us the best chance of a significant discovery. Our upcoming drilling will verify the model -- with additional upside within the Centerfire claims along the highly prospective eight-kilometre strike length."

The historic drilling at Centrefire (Phelps Dodge, 1968) targets surface mineralization, which is interpreted to be the feeder zone for the more laterally extensive and more mineralized VMS horizon at depth. The mineralized system is interpreted to be folded and overturned, resulting in the ancient VMS lens horizons expected position occurring farther below the current surface. The highly conductive and flat-lying plate models confirm this interpretation as they represent the tops of the most conductive material. These flat-lying, highly conductive plates are also associated with high magnetic signatures typical of the metamorphism from pyrite to magnetic pyrrhotite in the lens. This combination of high conductance and high magnetic signature represent a typical Archean-age VMS system.

Drill targets refined

As a result of the EM plate modelling and in concert with the magnetic inversion previously completed (see press release dated Jan. 26, 2026) and recent channel sampling at the MGZ, several high-conviction drill targets have been identified. The initial priority will be to drill beneath the Phelps Dodge historic holes that intersected wide intervals of copper mineralization and continue toward the flat-lying EM plate, 1980 flat, with a conductivity thickness of 495. A ct value of over 400 is deemed to be quite extraordinary in a VMS system. The Phelps Dodge holes look to have intersected the feeder zone stockwork and were not drilled deep enough to intersect the flat-lying VMS horizon.

An additional high-priority target for infield follow-up and potential phase 2 drilling will be the flat-lying EM plate 1920 flat that registers a ct of 475, and the adjacent 1900 flat that registered a ct of 376.8. This target is approximately 600 metres southwest and along strike of the 1980 flat plate. This phase 2 target is being referred to as the Southwest zone.

Mineralization style

The mineralization at Centrefire is associated with volcanogenic massive sulphide copper-gold and banded iron formation gold style mineralization with associated intense hydrothermal activity. This style of mineralization typically includes not only high-grade copper but also high values of gold and silver and elevated values of other base metals and pathfinder elements. The highly anomalous gold and silver values associated with higher-grade copper, but less zinc and lead anomalism suggest a hotter environment within a hydrothermal feeder zone and potential proximity to high-grade massive sulphide lenses. VMS systems are known to form in clusters, greatly increasing the exploration potential of the project as a whole.

Next steps -- drill contract

It is anticipated that, with the extremely compelling VMS targets afforded by the VTEM modelling, a drill contract will be negotiated and signed in the very near future. This will lead to a drilling program at Centrefire within the next month.

Sample analysis quality assurance/quality control protocol and disclosure

All rock samples collected by Cascade Copper and previously released were submitted to ALS Canada Ltd. at its Sudbury, Ont., facility for preparation and analysis. ALS meets all requirements of international standards ISO/IEC 17025:2005 and ISO 9001:2015 for analytical procedures. Each sample had a small representative reference sample split out for storage while the remaining bulk was photographed, tagged and bagged for analysis. Samples were analyzed using ALS's 30-gram fire assay fusion method (Au-ICP21) with an ICP-AES finish for gold and by a 34-element four-acid digest ICP-AES analysis (ME-ICP61) with additional analysis for ore grade elements (ME-OG62) and ore grade copper (Cu-OG62). Results were reported in parts per million and converted to per cent or grams per tonne when applicable.

The technical information in this news release was prepared and approved by Shannon Baird, PGeo, a qualified person as defined in National Instrument 43-101. Mr. Baird is vice-president of exploration of Cascade Copper and registered as a professional geoscientist with the Professional Geoscientists of Ontario as well as the Engineers and Geoscientists of British Columbia.

Management cautions that grab samples are selective in nature, and the assay results may not necessarily represent true underlying mineralization.

About Cascade Copper Corp.

Cascade Copper is an exploration-stage natural resource company engaged in the evaluation, acquisition and exploration of copper-based mineral resource properties. Cascade is focused on copper and gold, porphyry, and mesothermal gold deposits in British Columbia and VMS and BIF copper, gold and silver style deposits in Ontario. Cascade's priority is to conduct exploration using modern technology that includes 3-D inversion modelling of geophysics, lidar structural analysis, and artificial intelligence enhanced predictive modelling from all historic and modern data inputs. Cascade has five projects, including the Copper Plateau copper-molybdenum project, the Centrefire copper-gold project, the Rogers Creek copper-gold project, the Fire Mountain copper-gold project and the Bendor gold-tungsten project.

We seek Safe Harbor.