Founders Metals confirms Antino Northeast discovery with 58.5 m of 1.00 g/t Au

Vancouver, British Columbia--(Newsfile Corp. - July 15, 2026) - Founders Metals Inc. (TSXV: FDR) (OTCQX: FDMIF) (FSE: 9DL0) ("Founders" or the "Company") announces surface exploration and drilling results from its fully funded 70,000-metre drill program at the Antino Gold Project ("Antino" or the "Project") in southeastern Suriname (Figure 1). In the first half of 2026 Founders has advanced multiple gold systems simultaneously - this release highlights a new discovery at Antino Northeast, continued growth at Antino North and Maria Geralda, and an exciting follow-up drill hole at Antino West. Highlights Antino Northeast First-ever drilling confirms a new gold discovery on a kilometre-scale gold-in-auger anomaly with 1,200 m drill-confirmed strike length (Figure 1) 58.5 metres (m) of 1.00 grams per tonne (g/t) gold (Au) from 18.6 m (ANE009), including 18.0 m of 1.59 g/t Au 53.0 m of 0.46 g/t Au from 149.0 m (ANE002), including 8.0 m of 2.29 g/t Au Antino North Drilling has now tested and confirmed mineralization along three of twelve mapped northwest-trending parallel shear zones; nine shears remain untested (Figure 1) 16.5 m of 1.82 g/t Au from 8.1 m, including 3.0 m of 6.38 g/t Au (AN002), 8.1 m of 3.42 g/t Au from surface (AN009), and 22.5 m of 0.46 g/t Au from 32.1 m (AN005) Maria Geralda Fifteen new deep auger holes expand the high-grade gold previously defined, with near-surface intercepts including (Figure 2): 30.0 m of 4.52 g/t Au (MGAD061), 23.0 m of 5.31 g/t Au (MGAD062), 19.0 m of 4.02 g/t Au (MGAD064), 9.0 m of 6.24 g/t Au (MGAD074), 30.0 m of 3.69 g/t Au (MGAD060), and 17.0 m of 2.94 g/t Au (MGAD063) In several holes, mineralization continues to the 30 m auger limit.

The Company has a diamond drill moving to Maria Geralda in early August to test these results in bedrock. Antino West A 35-metre-wide shear zone with