Upside Gold Corp. Provides Operational Update on Kena Gold-Copper Project Advancements

CALGARY, Alberta – June 3, 2026 — Leads & Copy — Upside Gold Corp. (CSE: UG) (FSE: 47I) (OTCQB: UGODF) is advancing its Kena Gold-Copper Project in southeastern British Columbia with a multi-faceted strategy aimed at an updated NI 43-101 mineral resource estimate targeted for 2027. The company's operational update details ongoing technical and exploration advancements at the Kena Project.

Earlier this year, Upside Gold Corp. completed a comprehensive compilation and interpretation program, integrating historical drilling, geological, geochemical, and geophysical data. This work resulted in an updated digital 3D geological exploration model and identified multiple priority drill targets to guide the 2026 and 2027 exploration programs.

Key components of the strategy for the updated resource estimate include the incorporation of approximately 5,000 metres of historical drilling completed since the 2021 historical mineral resource estimate. Additionally, a planned 2026 diamond drill program of approximately 4,000 metres is set to commence in June 2026. This program will focus on step-out and target development drilling for near-resource mineralization and emerging copper-gold targets.

The company is also assessing historic copper and silver analyses that were not included in the existing gold-only resource estimate. Metallurgical studies will be conducted to evaluate the potential contribution of these elements to the broader Kena system. Exploration will continue beyond the current resource footprint, targeting additional areas identified through the company's district-scale geological model.

“We are building toward a future updated resource estimate that we believe has the potential to better reflect the true scale and value of the Kena system,” stated Sophy Cesar, Director and Chief Executive Officer. “The incorporation of historical drilling completed since 2021, planned 2026 exploration drilling, and the evaluation of copper and silver analyses represents a clear roadmap for resource growth. Kena offers a rare combination of existing scale, resource expansion potential, and district-scale exploration upside, and the technical foundation we have established this year puts us in a strong position to unlock it.”

Upside Gold Corp. expects to provide further updates as technical and exploration activities progress throughout 2026. The technical information in the press release has been reviewed and approved by Trevor Boyd, P.Geo., Vice President, Exploration of the Company and a Qualified Person for the technical information under NI 43-101 standards.

Upside Gold Corp. is a Canadian gold-copper exploration company that has an option agreement to acquire a 100% interest in the Kena Gold-Copper Project, located in southeastern British Columbia, approximately 7 kilometres southwest of Nelson. The project comprises 198 mineral claims covering 10,114.8 hectares, along with 11 crown grants covering approximately 92 hectares.

The Kena Project hosts a historical gold resource, including an Indicated Mineral Resource of 32,146,000 tonnes at an average grade of 0.544 g/t Au for 0.561 million ounces 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 ounces of gold. This historical estimate is disclosed in the technical report “NI 43-101 Resource Estimate for the Kena and Daylight Properties” prepared by Sue Bird, P.Eng. 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 yet classified the historical estimate as current mineral resources, and Upside Gold Corp. is not treating it as such. Additional drilling is required to upgrade the historical estimate to current mineral resources.