STLLR Gold intersects 13.00 g/t Au over 22.75 m at Jonpol, Tower

Toronto, Ontario--(Newsfile Corp. - June 18, 2026) - 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:   " g/t Au " = grams per tonne gold; " m " = metres; " TT " = True Thickness "Hole MGA-268 delivered the best intersected metal factor at Jonpol so far in our 2026 program, demonstrating the high-grade, near-surface nature of the deposit and its potential to drive value for the Tower Gold Project," said Keyvan Salehi, P.Eng., MBA, President, CEO, and Director of STLLR. "We are more confident in Jonpol's open-pit strike extension towards 1,200 meters at potentially above-average grades, which could enhance Tower's production profile and overall economics." Jonpol Deposit Drilling (See Figures 1-4 for Diagrams; See Tables 1-3 for Assays and Drill Details) 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