Troilus Drills 8.84 g/t AuEq Over 4.8 m at Z87, Confirming High-Grade Mineralization 400 m Beyond Current Resource Pit Shell

MONTREAL, Aug. 20, 2026 (GLOBE NEWSWIRE) — Troilus Mining Corp. (“Troilus” or the “Company”) ( TSX: TLG; OTCQX: CHXMF; FSE: CM5 ) is pleased to announce results from five drill holes totaling 2,915 metres completed as part of the ongoing Z87 extension drilling program at its gold-copper Troilus Project located in north-central Quebec, Canada.

All five holes were extensions of existing drillholes originating from the J Zone and were designed to test the down-plunge continuity of high-grade Z87 mineralization beyond the existing mineral resource (see the 2023 Mineral Resource Estimate in the October 16, 2023, press release ).

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Justin Reid, CEO of Troilus, commented, “The results reported today are an encouraging reminder of the significant opportunity that remains at depth at Troilus. Since acquiring the Project, our development plan has evolved from an initial underground concept beneath the historically mined J and Z87 pits into a much larger, 50,000 tonne-per-day open-pit operation. These latest results reinforce the compelling underground potential that remains beneath Z87. By re-entering and extending five existing drill holes into the interpreted high-grade core, we intersected mineralization in every hole and confirmed high-grade continuity at least 400 metres beyond the existing resource pit shell. These results provide valuable new data for future geological model updates as we continue evaluating the longer-term scale, flexibility and optionality of the Troilus Project.”

The drilling forms part of Troilus’ 2026 exploration program, as outlined in the March 31, 2026 press release . All reported grades are uncut, and true thicknesses are estimated at approximately 75% to 90% of drilled length.