Mr. Fiore Aliperti reports

METALLIS COMPLETES GEOPHYSICAL SURVEY AT GREYHOUND, IDAHO

Metallis Resources Inc. has completed a high-resolution drone magnetic survey at its optioned Greyhound property, located in central Idaho. This marks the first geophysical program ever undertaken at the property and is a major step forward in preparation for the upcoming drill program.

The 298-line-kilometre survey was completed by Pioneer Exploration Consultants Ltd., a leading provider of UAV-based (unmanned aerial vehicle) geophysics. Interpretation was conducted by consulting geophysicist Jules Lajoie, who identified key structural features and magnetic contrasts that will help refine priority drill targets in future programs.

Fiore Aliperti, Metallis's president and chief executive officer, commented: "The completion of our first geophysical survey at Greyhound represents a significant step in advancing the project toward its inaugural drill program. The drone magnetic data has provided valuable insight into the structural framework of the property, including the continuity of the Greyhound shear beneath overburden, the identification of multiple parallel shears and a magnetic anomaly coinciding with the high-grade 1,350-foot shoot. This information is being integrated with our geological and geochemical data sets to refine and prioritize drill targets. With field preparations under way, we are positioned to begin testing these targets for the first time in the property's history."

Survey results:

• New magnetic data outline the Greyhound shear in areas of overburden and identify multiple parallel shears to be investigated during the upcoming program.
• Significantly, a notable magnetic anomaly coincides with the high-grade 1,350-foot shoot in the Lower Rufus adit (see news release dated May 21, 2025).
• A newly identified north-south linear fabric in the data appears to demonstrate controls on mineralization, where it intersects the Greyhound shear.
• Breaks in linear magnetic features have been identified as possible faults and areas of increased fluid flow. Where they overlap with soil anomalies, they represent prospective future targets.
• Correlation of the magnetic data with the geological model has helped distinguish multiple dykes and geological features that will aid in drill hole planning.

Next steps

The geophysical data will play a key role in refining and ranking drill targets along the 3.5-kilometre-long shear zone, which the company expects to drill later this month. Interpretation and integration with multiple geochemical and structural data sets will help refine drill collar locations. Additionally, follow-up soil sampling and geological mapping will be prioritized in areas where magnetic data demonstrates structural and mineralized characteristics.

Drilling is set to begin mid-August, with 2,000 metres planned across six to eight drill pad locations. A camp is currently being built on site and final preparations are being made for the first-ever drill testing on this advanced project.

About the Greyhound property

In February, 2024, the company optioned the property, which is located in Custer county, Idaho, approximately 42 kilometres northwest of the town of Stanley and 35 kilometres south of Perpetua Resources' Stibnite mine. The property was the centre of an active silver mining camp in the early 1900s, and at one point contained a smelter and two active mines situated along the 3.5-kilometre Greyhound shear.

The Greyhound targets are hosted by prominent shear zones with polymetallic quartz-sulphide veins containing elevated concentrations of gold, silver, antimony, lead and zinc. They are comparable with numerous mines in North Idaho's Silver Valley along Interstate 90. This famous district is one of the most prolific silver districts in the world. The total quantities produced are impressive: over a billion ounces of silver, three million tons of zinc and eight million tons of lead totalling over $6-billion in value, ranking the Silver Valley among the top 10 mining districts in world history.

Qualified person

David Dupre, PGeo, vice-president, exploration, and the qualified person, as defined by National Instrument 43-101, has reviewed and approved the technical information contained in this news release.

About Metallis Resources Inc.

Metallis Resources is a Vancouver-based company focused on the exploration for gold, copper and silver on its flagship 100-per-cent-owned Kirkham property in Canada, situated in northwestern British Columbia's Golden Triangle, and on the Greyhound property, a gold/silver/antimony target in Idaho.

Metallis trades under the symbols MTS on the TSX Venture Exchange, MTLFF on the OTCQB Market and 0CVM on the Frankfurt Stock Exchange, and has 84,680,003 common shares outstanding.

We seek Safe Harbor.