STLLR Gold Intersects 3.11 g/t Au over 15.70 m at the Jonpol Deposit of the Tower Gold Project and Announces Board Change

STLLR Gold Inc. (TSX: STLR) (OTCQX: STLRF) (FSE: O9D) ("STLLR" or the "Company") reports additional assay results from its 2026 drilling program at the Jonpol Deposit (" Jonpol ") at the Garrison Property of the Tower Gold Project (" Tower " or the " Project ") in the Timmins Mining Camp in Ontario, Canada.

Table 1: 2026 Jonpol Deposit Drilling Highlights: Zone Hole ID Assay Result Jonpol MGA26-276 3.11 g/t Au ( 2.00 g/t Au, cut) over 15.70 m (9.57 m TT) (including 5.15 g/t Au over 1.00 m (0.61 m TT) & 49.20 g/t Au ( 25.00 g/t Au , cut) over 0.72 m (0.44 m TT) Jonpol MGA26-277 1.44 g/t Au over 33.77 m (12.00 m TT) (including 2.36 g/t Au over 9.69 m (3.44 m TT) Jonpol MGA26-275 2.41 g/t Au over 16.00 m (10.49 m TT) (including 4.71 g/t Au over 1.00 m (0.65 m TT)

The Jonpol Deposit is situated in the Garrison Property at the eastern end of Tower (see Figure 1) along the Munro Fault, a splay from the regional Destor-Porcupine Fault Zone (" DPFZ "). Mineralization is hosted in structurally controlled alteration zones within mafic to ultramafic rocks and gold mineralization is closely associated with felsic intrusive rocks. STLLR has completed 8,536 m of drilling at Jonpol for its first-half 2026 drill program, with assay results pending for the remaining holes. STLLR is currently finalizing drilling plans for the remainder of 2026.

This year's programs are designed to deliver on two primary objectives: Strike Extension: majority of the 2026 meterage targets the western extension of Jonpol's open-pit mineralization. Successful results here could expand the strike from 400 m as currently defined in the Tower Preliminary Economic Assessment (" Tower PEA ") 1  to approximately 1,200 m. Jonpol remains open along strike and at depth. Infill and De-risking: the drill program is also designed to confirm the block model and support the potential expansion of higher-grade mineralization to incorporate into the Tower Mineral Resource Estimate (" Tower MRE ") 1 . These additional assays continued to intersect near-surface, high-grade mineralization (see Table 1) in targeted areas along the western strike extension. Most of the intersected grades exceed the current average open-pit grades at Jonpol in the Tower MRE, suggesting the potential to expand the mineral resources. These results continue to confirm the current geological model, supporting the potential expansion of higher-grade mineralization.