Mr. Robert Boyd reports

ENDURANCE REPORTS FIRST 2026 DRILL RESULTS AT RELIANCE GOLD PROJECT

Endurance Gold Corp. has released the assay results from the first two 2026 drill holes completed at its 100-per-cent-owned Reliance gold project. The road-accessible project, located four kilometres (km) east of Gold Bridge in the historic Bridge River mining camp, hosts an inferred mineral resource estimate (MRE) of 19.6 million tonnes at an average grade 2.30 grams per tonne (gpt) gold (Au), for 1.45 million ounces contained gold (see MRE disclaimer below).

Highlights include:

• DDH26-128 returned 7.67 gpt gold and 0.13 per cent antimony over 14.7 metres (m), including 11.01 gpt gold and 0.19 per cent antimony over 8.7 m from the Eagle zone commencing at 75.9 m downhole depth:
  • This high-grade gold intersection represents a 25 m updip expansion of the near-surface Eagle zone previously undefined by the MRE.
  • The drill hole also intersected five additional veins below the MRE between downhole depths of 118.1 m and 161.0 m. The individual veins ranged in drill width from 0.5 m to 1.6 m, and assayed between 2.57 gpt gold and 10.10 gpt gold.
• DDH26-129 returned 3.07 gpt gold and 0.03 per cent antimony over 12.0 m, including 13.75 gpt gold and 0.14 per cent antimony over 1.8 m commencing at 98.2 m downhole depth:
  • This intersection represents a 60 m offset from hole DDH26-128 at the Eagle zone.
• Seven drill holes have been completed this year at the Eagle zone, with all holes displaying visual mineralization from previously undrilled areas:
  • Assays are pending for five Eagle holes with 11 mineralized structures ranging from 2.1 m to 10.5 m drill length.
• In addition, two drill holes were completed to test the expansion of the Imperial zone at depth. Both holes intersected the mineralized intervals at the Royal shear fault contact as predicted with 43 m and 55 m stepouts, respectively.

The fully financed program with two diamond drill rigs commenced on May 1, with a planned minimum of 8,000 m of diamond drilling. 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.

Drill holes DDH26-128 and DDH26-129 are the first two drill holes completed at the southern extent of the Eagle zone and were designed to expand the Eagle zone pit-constrained MRE. Seven drill holes, for 1,899 m, have been completed at the southern end of the Eagle zone to date this year and an eighth hole is in progress. Visual mineralization has been identified in all seven holes.

Hole DDH26-128 is a 25 m updip step out from hole DDH22-027, which returned 8.31 gpt Au over 11.9 m. Hole DDH26-128 successfully intersected the Eagle zone mineralization and expanded the mineralization updip toward surface. The hole also intersected five mineralized veins below the Eagle zone, which will expand the downdip extent of the Eagle zone.

Hole DDH26-129 was drilled from the same location but with a different azimuth and dip, resulting in a 60 m stepout to the northwest on the Eagle zone mineralized trend. This hole confirmed Royal shear hosted mineralization within the Eagle zone.

Five additional drill holes have been completed at the southern extent of the Eagle zone to upgrade and expand the near-surface mineralization. All five drill holes intersected visible mineralization and 11 mineralized structures were intersected ranging in drill lengths of 2.1 m to 10.5 m. Assay results are pending.

At the Imperial zone, two drill holes have been completed for 1,160 m. The first hole intersected a five m mineralized structure at the Royal shear contact, which is a 43 m stepout from previous drill hole DDH24-109, which returned 6.74 gpt Au over 21.8 m, including 10.11 gpt Au over 12.4 m. The hole also intersected an eight m mineralized structure hosted in the footwall of the Royal shear that is interpreted as the Lower Imperial zone.

The second Imperial zone hole was drilled from the same pad with different dip resulting in a 55 m stepout on the Royal shear contact. The hole intersected an eight m mineralized structure at the Royal shear contact. Assay results are pending for both Imperial drill holes.

All drill assay results are reported as core length intervals. True composite widths are estimated at 80 per cent to 100 per cent of core length. Highlighted intervals are reported in table 1.

The phase 2 drilling program is expected to commence later this summer with a reverse circulation (RC) drill rig dedicated to evaluating new targets at the Eagle offset anomaly. Metallurgical testwork to optimize gold and antimony recovery is currently in progress.

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 Gold 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.

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, sociopolitical, marketing, changes in global gold markets or other relevant issues.

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

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. Mr. O'Brien has reviewed and approved of this news release.

Diamond drill core was logged and evaluated on the property and samples designated for assay analysis under the supervision of a geologist at the property. Drilling was completed with HQ- and NQ-size tools capable of collecting 6.35- and 4.76-centimetre-diameter core (respectively). Drill core was cut using a diamond saw, with one-half of the core sent for analysis and the remaining kept for future studies. All drill core samples have been submitted to ALS Global in North Vancouver, B.C., an ISO/IEC 17025:2017-accredited laboratory, where they are crushed to 70 per cent less than two millimetres (mm) then up to 250 grams (g), pulverized to less than 75 microns. Samples are then submitted for four-acid digestion and analyzed for 48-element ICP-MS (inductively coupled plasma mass spectrometry) (ME-MS61) and gold 30 g FA (fire assay) ICP-AES (inductively coupled plasma atomic emission spectroscopy) finish (AU-ICP21). Overlimit samples returning greater than 10 parts per million (ppm) gold are reanalyzed by Au-GRA21 methodology and overlimit antimony returning greater than 10,000 ppm antimony (Sb) are reanalyzed by Sb-AA08 methodology. Samples with Visible Gold are reanalyzed by metallics screening method Au-SCR21, which incorporates a one-kilogram (kg) pulp screened to 100 microns and includes assaying of the entire oversize fraction.

We seek Safe Harbor.