Mr. Robert Cameron reports

ENDURO METALS COMMENCES FIRST-EVER DRILL PROGRAM AT THE ANDREI COPPER-GOLD PORPHYRY TARGET GOLDEN TRIANGLE REGION, BRITISH COLUMBIA

Drilling has commenced at Enduro Metals Corp.'s Andrei copper-gold porphyry target, located within the company's 100-per-cent-owned Newmont Lake project in British Columbia's Golden Triangle.)

Enduro's 2026 phase one exploration program will include a total of approximately 3,000 metres of diamond drilling at Andrei, as set out in the company's press release dated June 22, 2026. This inaugural drill program targets an open-ended four-kilometre combined chargeability and magnetic anomaly, part of a larger 14-kilometre magnetic-high trend. A secondary component of the work program will include extending the induced polarization survey to the northeast along the magnetic trend.

"We are pleased to have commenced our 2026 exploration program on schedule, with phase one drilling now under way at the Andrei target," said Rob Cameron, chief executive officer. "This initial 3,000-metre program is designed to test a high-potential copper-gold porphyry target that has never previously been drilled. Andrei represents one of the most compelling untested opportunities on the 688-square-kilometre Newmont Lake property, not only because of its geological potential, but also because of its highly advantageous location at low elevation with straightforward access from the Galore Creek mine road. We look forward to advancing this initial drill program and updating the market as the program progresses."

About the Andrei target

The Andrei target is a large, newly recognized, undrilled porphyry copper-gold target located in the northern sector of the Newmont Lake project. Andrei occupies one of the most favourable locations on the 688 square km property, being situated at low elevation with straightforward future access potential from the nearby Galore Creek mine road.

The target is defined by widespread copper mineralization in outcrop on the flanks of the main Andrei ridge, coincident magnetic and chargeability anomalies, and a dense network of potassic-altered monzonite dikes and plugs, interpreted to be correlated to the Red Chris intrusive suite, which intrudes basalt and andesite volcanic rocks of the Stikine assemblage. This monzonite complex correlates well with magnetic highs that define a major highly prospective 14-kilometre-long porphyry corridor. A 2025 induced polarization survey on the southwest end of this trend delineated a robust four-kilometre open-ended chargeability anomaly coincident with a strong magnetic high that comprises the drill target for the 2026 program.

The overall exploration program will, in addition to drilling, include expanded induced polarization geophysical coverage to the northeast of Andrei where 2025 work (magnetics and prospecting) indicated a possible additional 10 kilometres of favourable geology. Also, further work is planned at the Camp zone high-grade gold vein system located some 12 kilometres south of Andrei where recent sampling and historical work has outlined a series of high-grade gold in quartz-sulphide shear zones with a goal to establish drill targets for 2027.

About the Newmont Lake project

The Newmont Lake project is one of the largest contiguous claim packages (688 square km) in the Golden Triangle. It is strategically located near major world-class porphyry copper-gold (Cu-Au) development projects, including Galore Creek (Newmont-Teck Resources) and KSM (Seabridge Gold), as well as past-producing high-grade gold mines at Snip and Eskay Creek (currently being put back into production by Skeena Gold & Silver).

The project encompasses five large target areas that include the newly outlined and undrilled Andrei porphyry copper-gold target, a greater than four km long chargeability and magnetic anomaly wherein 25 per cent of rock samples collected in 2025 exceeded 0.1 per cent copper (see news release dated Jan. 28, 2026, for detailed QA/QC (quality assurance/quality control)); the partially drill-tested Burgundy Ridge alkalic-style porphyry copper-gold deposit (331 m at 0.29 per cent Cu and 0.29 g/t gold in hole 21-001, see news release dated Oct. 18, 2021, for detailed QA/QC);; and the McLymont gold target, a 20 square km area that includes the NW zone, host to a historical gold resource and the Camp zone where Enduro sampling in 2025 returned high-grade gold values from narrow submetre quartz pyrite veins within shear zones of up to 113 g/t Au with 142 g/t Ag (see news release dated Jan. 8, 2026, for detailed QA/QC).

Stock option grant

The company has granted stock options to directors, officers, employees and consultants of the company to purchase an aggregate of 4.04 million common shares in the capital of the company at an exercise price of 16 cents per share, which expire on June 26, 2031. The options granted are under and subject to the terms and conditions of the company's stock option plan and subject to the rules and policies of the TSX Venture Exchange. This stock option grant is subject to acceptance by the exchange.

Qualified person

Robert Cameron, PGeo, Enduro's chief executive officer, is the company's qualified person as defined by National Instrument 43-101 -- Standards of Disclosure for Mineral Projects, and has reviewed and approved the technical aspects of this release. For additional details on data verification, sample, analytical and testing results, refer to the technical reports titled "Technical Report on the Newmont Lake Property" authored by Maurizio Napoli, PGeo, and Ali Wasiliew, PGeo, dated March 1, 2025, as posted on SEDAR+ and the company's website and press releases dated Oct. 6, 2025, and Jan. 8, 2026. Samples collected in 2025 were primarily grab samples. Such samples are selective in nature and are not necessarily representative of the overall mineralized system but are effective in identifying areas of potential cohesive mineralization.

About Enduro Metals Corp.

Enduro Metals is an exploration company focused on its Newmont Lake project; a 688-square-kilometre property located within the heart of British Columbia's Golden Triangle. Building on prior results, Enduro Metals' geological team has outlined multiple deposit environments of interest across the Newmont Lake project including high-grade epithermal/skarn gold along the McLymont Fault, and copper-gold alkalic porphyry systems at Burgundy and Andrei. The company maintains a broader portfolio of mineral projects across Canada including the advanced Burn porphyry copper and gold project in Northern British Columbia.

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