Ms. Sophy Cesar reports

UPSIDE GOLD EXTENDING 2026 DIAMOND DRILLING PROGRAM AT KENA GOLD-COPPER PROJECT

Upside Gold Corp. plans to restart diamond drilling at its Kena gold-copper project in southeastern British Columbia, adding approximately 1,000 metres of drilling to its expanded 2026 exploration program.

The decision to return to drilling follows geological observations made during logging of drill core from the company's recently completed 5,180-metre, 19-hole diamond drilling program. Mineralization observed in core from the south zone and Kena copper-gold zone was considered by the company's technical team to warrant additional follow-up drilling.

The additional program will consist of approximately 1,000 metres of diamond drilling, potentially increasing total 2026 drilling at Kena to approximately 6,180 metres, compared with approximately 4,000 metres originally planned.

The new holes will be drilled from existing approved drill pads using modified dip angles and orientations. Detailed core logging suggests that sulphide mineralization and associated hydrothermal alteration may crosscut the host rock foliation and follow a more subvertical orientation. The additional holes are designed to better test the geometry and continuity of these mineralized trends.

Four drill holes of about 250 metres each are planned across the south zone and Kena copper-gold zone. Importantly, both target areas lie outside the footprint of the 2021 historical mineral resource estimate, providing an opportunity to test for gold and copper mineralization beyond the historical resource area.

"After completing 5,180 metres of drilling this year, our technical team identified mineralization trends in the core that we believe warrant additional follow-up," said Sophy Cesar, chief executive officer and director of Upside Gold. "With time remaining in our permitted exploration season, we made the decision to put the drill back to work and add approximately another 1,000 metres to the program. We originally planned approximately 4,000 metres for 2026 and now have the opportunity to complete more than 6,000 metres. We want to make the most of the field season and continue advancing Kena wherever the geology gives us a reason to do so."

Trevor Boyd, PGeo, vice-president, exploration, of Upside Gold, added: "Detailed logging of the first 5,180 metres has continued to refine our understanding of the geology at Kena and identified areas that warrant further testing. The additional drilling allows us to act on those observations now and gather important geological information from the south zone and Kena copper-gold zone before the end of the field season."

The company emphasizes that visual observations of mineralization in drill core are not a substitute for laboratory assay results and do not provide a reliable indication of grade. Logging and sampling of drill core from the 2026 program remain continuing, with samples continuing to be submitted for analysis. Assay results will be released as they are received, reviewed and interpreted.

As previously announced, the company's Mines Act permit MX-100000131 has been extended to Oct. 31, 2026, allowing Upside to complete the additional drilling from approved drill setups and access locations before the permit expires.

The results from the additional drilling are expected to be incorporated into the updated mineral resource evaluation being undertaken by Moose Mountain Technical Services, subject to receipt and validation of the required assay and QA/QC (quality assurance/quality control) data. The updated National Instrument 43-101 mineral resource estimate remains targeted for Q1 (first quarter) 2027.

The information in this news release has been reviewed and approved by Dr. Trevor Boyd, PGeo, vice-president, exploration, of the company and a qualified person for the technical information under NI 43-101 standards.

About Upside Gold Corp.

Upside Gold is a Canadian gold-copper exploration company that has entered into an option agreement to acquire a 100-per-cent interest in the Kena gold-copper project, located in southeastern British Columbia, approximately seven kilometres southwest of Nelson. The Kena project consists of 207 mineral claims and 11 Crown grants covering 10,578 hectares.

The corporation is focused on advancing the Kena gold-copper project through systematic exploration and drilling programs.

The Kena project hosts a historical gold resource comprising an indicated mineral resource of 32,146,000 tonnes at an average grade of 0.544 gram per tonne (g/t) gold (Au) for 561,000 ounces (oz) of gold and an inferred mineral resource of 177,507,000 tonnes at an average grade of 0.486 g/t Au for 2.77 million oz of gold. The historical resource estimate is disclosed in the technical report, entitled "NI 43-101 Resource Estimate for the Kena and Daylight Properties," prepared by Sue Bird, PEng, of Moose Mountain Technical Services, dated May 3, 2021, and filed on SEDAR+ on behalf of West Mining Corp.

A qualified person, as defined by National Instrument 43-101, has not done sufficient work to classify the historical estimate as current mineral resources and Upside Gold is not treating the historical estimate as current mineral resources. The historical estimate is provided for information purposes only and should not be relied upon.

Additional drilling and technical work will be required to verify the historical estimate as a current mineral resource. The historical estimate uses the categories set out in Section 1.2 of the National Instrument 43-101. The parameters and assumptions used are outlined in Bird 2021 and are provided as follows:

1. Resources are reported using the 2014 CIM definition standards and were estimated using the 2019 CIM best practices guidelines
2. Mineral resources that are not mineral reserves do not have demonstrated economic viability.
3. The mineral resource has been confined by a "reasonable prospects of eventual economic extraction" pit using the following assumptions: $2,000 (U.S.) per oz Au at a currency exchange rate of 77 U.S. cents per $1 (Canadian); 99.95 per cent payable Au; $4.30 per oz Au off-site costs (refining, transport and insurance); a 3-per-cent NSR (net smelter return) royalty; and a metallurgical recovery for gold of 88 per cent.
4. Pit slope angles are assumed at 45 degrees.
5. The specific gravity of the deposit has been assigned as 2.8 based on sg measurements in the Kena deposit.

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