Mr. Robert Boyd reports

ENDURANCE REPORTS DRILLING UNDERWAY AT RELIANCE GOLD PROJECT AND SECOND RIG MOBILIZED

Drilling has commenced at Endurance Gold Corp.'s 100-per-cent-owned Reliance gold project in Southern British Columbia. The road-accessible project, located four kilometres east of Gold Bridge in the historic Bridge River mining camp, hosts an inferred mineral resource estimate of 19.6 million tonnes grading 2.30 grams per tonne gold for 1.45 million ounces contained gold.

The fully financed program commenced on May 1 with a minimum of 8,000 metres of diamond drilling, and a second drill rig is currently being mobilized to accelerate the program. Additional metres will be added to the planned program as results warrant. The initial phase 1 drilling program aims to upgrade the near-surface, pit-constrained MRE to the indicated category, expand the mineralization within the MRE pit shell and test for deeper high-grade extensions that could support further growth of the underground MRE.

The first drill hole, DDH26-128, is currently in progress, where it is testing the southern expansion of the Eagle zone pit-constrained MRE. The hole is testing a 25-metre stepout from hole DDH22-027, which returned 8.31 g/t Au over 11.9 m within a broader interval of 4.16 g/t Au over 30.0 m. Hole DDH26-128 has already intersected a 10-metre mineralized interval in the footwall of the Royal shear fault at a downhole depth of 74 m and is continuing to a target depth of 190 m to test the projected extension of Eagle zone mineralization at depth.

At the Imperial zone, the second drill rig will complete a series of holes designed to expand the underground MRE encompassing the Imperial and Lower Imperial mineralized horizons. The first planned hole will test a 40-metre stepout on the Imperial horizon, where drill hole DDH24-109 returned 6.74 g/t Au over 21.8 m, including 10.11 g/t Au over 12.4 m. The same hole will continue to an approximately 575-metre depth to test a stepout on the Lower Imperial horizon, where hole DDH24-106 returned 7.18 g/t Au over 8.3 m within a wider interval of 4.47 g/t Au over 15.3 m. These initial drill holes are intended to evaluate the high-grade underground potential of the Imperial zone MRE.

The Reliance gold project is interpreted to host a shallow-level (epizonal) orogenic gold system. Gold mineralization is directly related to varying amounts, though generally low concentrations of sulphides, including pyrite, arsenopyrite and stibnite. These occur as sulphide replacement and multigenerational breccias, which are frequently associated with pervasive silicification, quartz stockwork and/or quartz breccia infill. The geological setting and drilling results to date support the company's view that the project has near-surface and underground growth potential.

MRE disclaimer and qualified person

The mineral resource estimate was prepared for Endurance by Ginto Consulting Ltd. in accordance with National Instrument 43-101 (Standards of Disclosure for Mineral Projects) with an effective date of Jan. 8, 2026. Please see the NI 43-101 technical report dated March 10, 2026, for additional disclosure for the MRE. The report, titled "NI 43-101 Mineral Resource Estimate and Technical Report on the Reliance Gold Project, British Columbia, Canada," is available on SEDAR+ under the company's profile and on the company's website.

This initial MRE is defined by 216 drill holes and 49 surface trenches along a 1.5-kilometre length of the three-plus-kilometre Royal shear. The MRE consists of three mineralized zones: Eagle, Imperial and Crown. Each zone hosts multiple mineralized horizons and/or structures.

Mineral resources, which are not mineral reserves, do not have demonstrated economic viability. There is no certainty that all or any part of the mineral resources estimated will be converted into mineral reserves. The estimate of mineral resources may be materially affected by environmental, permitting, legal, title, taxation, socio-political, marketing, changes in global gold markets or other relevant issues.

The Canadian Institute of Mining, Metallurgy and Petroleum definitions were followed for the classification of the mineral resources. The inferred mineral resources have a lower level of confidence and must not be converted to mineral reserves. It is reasonably expected that the majority of inferred mineral resources could be upgraded to indicated mineral resources with continued exploration.

The technical and scientific information in this news release has been reviewed and approved by Darren O'Brien, PGeo, vice-president, exploration, of the company and a qualified person as defined in National Instrument 43-101.

Endurance is a precious metal exploration and development company focused on the acquisition, exploration and development of highly prospective North American mineral properties. Its exploration focus is currently to advance the Reliance gold project, located near Gold Bridge, B.C., in the historic Bridge River gold mining camp.

We seek Safe Harbor.