Signature Resources extends depth continuity 200 m at Lingman Lake in LM 25-05

1.37 g/t Au over 32 m in South Zone B, which includes 8 m averaging 3.75 g/t Au and 1.62 g/t Au over 7 m in North Zone B Toronto, Ontario--(Newsfile Corp. - June 25, 2026) - Signature Resources Ltd. (TSXV: SGU) (OTCQB: SGGTF) (FSE: 3S30) ("Signature" or the "Company") is pleased to announce the results for the final diamond drill holes ("DDH") east of the diabase dyke from the 2025-26 drill program which was designed to test the depth extensions of the Lingman Lake deposit. Drill hole LM 25-05 successfully tested the depth extensions predicted by the Company's geologic model, extending the North Zone ("NZ") by 200 metres ("m") to a vertical depth of 600 m and the South Zone ("SZ") by 200 m to a vertical depth of 400 m. Drilling highlights include: 1.37 grams per tonne gold ("g/t Au") over 32 m in South Zone B, which includes an 8 m segment averaging 3.75 g/t Au 1.62 g/t Au over 7 m in North Zone B These results are significant because they support continuity of mineralization at depth, validate the current geological model, and help define priority targets for future drilling designed to expand the Lingman Lake mineralized envelope.

"We are very pleased with the results from the eastern portion of the drill program. The holes were significant step-outs which clearly exhibited the depth potential at Lingman Lake deposit from 400 metre vertical depth to 600 metre vertical depth and remains open. We are anxiously waiting for the results west of the diabase dike targeting the extension of the West Zone which have the potential to extend the mineralization laterally 600m to the west from the initial resource published last year." J. Dan Denbow, CFA – President, CEO and Director The winter drill program, Figure 1, consisted of nine holes totalling 4,006 m and was completed in early May with all core samples delivered to SGS labs for analysis.

Results are p