Ms. Sophy Cesar reports

UPSIDE GOLD ADVANCES DIAMOND DRILLING PROGRAM FOR THE KENA GOLD-COPPER PROPERTY

Upside Gold Corp. has released a preliminary report on its initial diamond drilling program for its 10,115-hectare (ha) Kena gold-copper property in southeastern British Columbia, including results from the company's drill core assays completed in the fall of 2025.

The first phase of drilling program comprises 1,002 metres in three diamond drill holes designed to test the northeast margin of the Kena lode gold zone. The program intersected board zones of near-surface significant gold mineralization with elevated copper and silver values, local lateral expansion of the mineralized zone. The program was paused in November due to snow conditions and is expected to resume in June.

Initial drilling demonstrates the width and continuity of the gold mineralization along the northeastern margin, with grades comparable to the Kena historical resource*. Future drilling will continue to test targets to the northeast, as well as additional priority targets to the southwest downdip and southeast along strike, extending beyond the boundaries of the Kena historical resource*. Significant intersections are summarized in the attached table. The true widths of the intersections are unknown.

QA/QC (quality assurance/quality control)

The collected one-to-two-metre drill core samples were shipped by bonded carrier and submitted to ALS Canada Ltd. laboratory in Kamloops and North Vancouver, B.C. ALS Canada is an independent accredited testing laboratory having been assessed by the Standards Council of Canada (SCC) and found to conform to the requirements of ISO/IEC 17025:2017 for listed services.

The qualified person inserted blind Au (gold), Ag (silver) and Cu (copper) accredited analytical standards and quartz blanks with the submitted batch.

Rock samples analyses included gold and 34 multielement inductively coupled plasma-atomic emission spectroscopy (ICP-AES) analysis by four-acid digestion (Au-ICP21, ME-ICP61), following sample weighing, log-in and crushing with screening to minus 75 microns. ALS completed a standard package of internal laboratory QA/QC, including standards, blanks and duplicates.

The information in this news release has been reviewed and approved by Trevor Boyd, PGeo, vice-president, exploration, of the company and a qualified person for the technical information under National Instrument 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-pepr-cent interest in the Kena gold-copper project, located in southeastern British Columbia, approximately seven kilometres southwest of Nelson. The Kena project consists of 198 mineral claims covering 10,114.8 hectares, together with 11 Crown grants covering approximately 92 hectares.

The company 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) Au for 561,000 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. 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.

To upgrade the historical estimate as current mineral resource, additional drilling needs to be completed. The historical estimate uses the categories set out in Section 1.2 of the NI-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 ounce (oz) Au at a currency exchange rate of 0.77 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 net smelter return (NSR) royalty; and uses a 88-per-cent metallurgical recovery for gold.
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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