Endurance Commences Planned 7,000 m Drilling Program at the Reliance Gold-Antimony Project

Rhea-AI Summary

Endurance Gold (OTCQB: ENDGF) has initiated a 7,000-meter diamond drilling program at its 100%-owned Reliance Gold-Antimony Project in British Columbia. The program aims to expand gold zones along the Royal Shear and conduct delineation infill drilling for a maiden resource estimate. The property, located near the historic Bralorne-Pioneer Gold Mining Camp, has shown promising results with 73 out of 108 diamond drill holes returning significant intersections. Recent discoveries include the Lower Imperial Zone, which yielded 7.18 gpt gold over 8.3m, and the Lower Crown Zone, returning 7.61 gpt gold over 5.7m. The 2025 objectives include 3D modeling, metallurgical testing for gold and antimony recovery, and exploration of new targets at the Enigma and Olympic areas, where surface sampling has returned up to 25.1 gpt gold and 11.9% antimony.

Positive

• Strong drilling success rate with 73 out of 108 holes returning significant gold intersections
• Recent high-grade discoveries: 7.18 gpt gold over 8.3m at Lower Imperial Zone and 7.61 gpt gold over 5.7m at Lower Crown Zone
• Substantial mineralized system with 1.5 km strike length and 1.1 km vertical extent
• Property located near historic Bralorne-Pioneer Gold Mining Camp (4M oz gold production)
• Plans for maiden resource estimate and metallurgical optimization for both gold and antimony recovery

Negative

• Resource estimate not yet completed after four seasons of drilling
• Additional permit applications still pending for Olympic and Enigma areas
• Complex metallurgy requiring optimization for both gold and antimony recovery

Vancouver, British Columbia--(Newsfile Corp. - May 20, 2025) - Endurance Gold Corporation (TSXV: EDG) (OTCQB: ENDGF) (FSE: 3EG) (the "Company") is pleased to announce that drilling has commenced at its 100%-owned Reliance Gold-Antimony Project (the "Property") in southern British Columbia. The road accessible Property is located 4 kilometres ("km") east of the village of Gold Bridge, and 10 km north of the historic Bralorne-Pioneer Gold Mining Camp which has produced over 4 million ounces of gold.

The planned 2025 program primarily consists of 7,000 metres ("m") of diamond drilling with the objectives of expanding the gold zones discovered along the Royal Shear, and delineation infill drilling to be incorporated into an open-pit constrained maiden resource estimate. The 2025 program goals include:

• Expanding new drill discoveries at Lower Imperial and Lower Crown Zones
• Demonstrating continuity of near-surface mineralization
• Reporting of an inaugural "open pit" mineral resource
• Completing representative metallurgical test work and flow-sheet design to maximize gold and antimony recoveries
• Drill-target generation on additional regional-scale structures.

In the previous four seasons the Company has completed a total of 25,210 m of diamond drilling, expanding the Royal Shear gold-mineralized trend over 1.5 km of strike and 1.1 km vertically. Drilling to date has been extremely successful with 73 of the 108 diamond drill holes completed to date returning significant drill intersections (exceeding 3 grams per tonne ("gpt") with a minimum mineralized width of 3 m). This ongoing cost-effective exploration work has led to the discovery of a substantial orogenic gold and antimony system.

The 2025 drilling program has now been initiated at the Imperial Zone. The initial holes are designed to provide infill data along the Royal Shear contact while also testing the continuity of the Lower Imperial Zone discovered in late 2024. The Lower Imperial Zone was intersected approximately 200 m in the footwall of the Royal Shear contact in hole DDH24-106 which returned 7.18 gpt gold over 8.3 m including 28.08 gpt gold over 1.7 m hosted in altered gabbro, indicating a possible previously unrecognized stacked mineralized zone below Imperial Zone (see news release December 16, 2024).

The 2025 drilling will further test new drill discoveries at the Crown Zone. The Lower Crown Zone was discovered in 2024 where DDH24-103 returned 7.61 gpt gold over 5.7 m from the Royal Shear contact (see news release November 19, 2024). Infill drilling will test the Royal Shear contact for continuity of mineralization between the Imperial, Lower Crown and Eagle Zones. The 2025 drilling in this area will target near-surface mineralization which may optimize into the pit-constrained mineral resource. (See Figure 1)

The prime 2025 objective is to complete three dimensional ("3D") modelling of existing data complemented by further drilling and additional representative metallurgical test work to support completion of an inaugural mineral resource estimate. Aside from optimised and representative gold recovery, metallurgical test work will consider alternatives for the production of an antimony-rich concentrate.

Geochemical surface sampling, geological mapping and prospecting is also planned in 2025 to better define drill targets along the southeast trend of the Royal Shear where a new 500 m soil anomaly was discovered (see news release March 24, 2025). Similar surficial work is planned at the Enigma and Olympic targets where surface grab sampling has returned gold values up to 25.1 gpt gold and 11.9% antimony (see news release February 6, 2024). A drill permit application is in progress for the Olympic and Enigma areas to facilitate drill testing in late 2025 or 2026. (See Figure 2)

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.

Endurance Gold Corporation is a company focused on the acquisition, exploration and development of highly prospective North American mineral properties.

ENDURANCE GOLD CORPORATION

Robert T. Boyd, President & CEO

FOR FURTHER INFORMATION, PLEASE CONTACT
Endurance Gold Corporation www.endurancegold.com
Toll Free: (877) 624 2237, info@endurancegold.com

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, BC, an ISO/IEC 17025:2017 accredited laboratory, where they are crushed to 70% <2 mm then up to 250 gram pulverized to <75 microns. Samples are then submitted for four-acid digestion and analyzed for 48 element ICP-MS (ME-MS61) and gold 30g FA ICP-AES finish (AU-ICP21). Over limit samples returning greater than 10 parts per million ("ppm") gold are re-analyzed by Au-GRA21 methodology and over limit antimony returning greater than 10,000 ppm Sb are re-analyzed by Sb-AA08 methodology. Samples with Visible Gold were re-analysed by metallics screening method Au-SCR21 which incorporates a 1 kg pulp screened to 100 microns and includes assaying of the entire oversize fraction.

Endurance Gold monitors QA/QC by inserting blanks, certified standards and pulp duplicates into the sample stream. The work program is supervised by Darren O'Brien, P.Geo., Vice President Exploration for the Company and the qualified person as defined in National Instrument 43-101. Mr. O'Brien has reviewed and approved this news release.

Neither the TSX Venture Exchange nor its Regulation Services Provider (as that term is defined in the policies of the TSX Venture Exchange) accepts responsibility for the adequacy or accuracy of this news release. This news release may contain forward looking statements based on assumptions and judgments of management regarding future events or results that may prove to be inaccurate as a result of factors beyond its control, and actual results may differ materially from the expected results.

Figure 1: Reliance Property - Royal Shear Inclined Longitudinal - 2025 Drill Targeting Areas

To view an enhanced version of this graphic, please visit:
https://images.newsfilecorp.com/files/4976/252665_e974c6df94fb8b84_002full.jpg

Figure 2: Reliance Property - 2025 Generative Target Areas

To view an enhanced version of this graphic, please visit:
https://images.newsfilecorp.com/files/4976/252665_e974c6df94fb8b84_003full.jpg

To view the source version of this press release, please visit https://www.newsfilecorp.com/release/252665

FAQ

What are the main objectives of ENDGF's 2025 drilling program at Reliance?

The main objectives include expanding gold zones along the Royal Shear, conducting infill drilling for a maiden resource estimate, completing metallurgical test work for gold and antimony recovery, and generating new drill targets on regional structures.

What are the recent significant gold discoveries at ENDGF's Reliance project?

Recent discoveries include the Lower Imperial Zone (7.18 gpt gold over 8.3m) and the Lower Crown Zone (7.61 gpt gold over 5.7m), indicating significant mineralization potential.

How successful has ENDGF's drilling been at the Reliance project to date?

Drilling has been highly successful with 73 out of 108 diamond drill holes returning significant intersections exceeding 3 gpt gold with minimum 3m width, expanding the mineralized trend over 1.5 km strike and 1.1 km vertically.

What is the location and accessibility of ENDGF's Reliance Gold-Antimony Project?

The Reliance project is road accessible, located 4 km east of Gold Bridge and 10 km north of the historic Bralorne-Pioneer Gold Mining Camp in southern British Columbia.

What type of gold deposit is ENDGF's Reliance project?

The Reliance Project is interpreted as a shallow-level (Epizonal) Orogenic gold system with mineralization related to varying amounts of sulphides including pyrite, arsenopyrite, and stibnite.