Sterling expands MEPS discovery strike to 1.3 km, uncovers Mo-Cu porphyry at depth

Drill hole SC-26-16 intersects 451 Metres at 0.30% CuEq from top of bedrock including 101 Metres at 0.50% CuEq including 12 Metres at 1.70% CuEq

TORONTO, ON / ACCESS Newswire / September 3, 2026 / Sterling Metals Corp. (TSXV:SAG)(OTCQB:SAGGF) ("Sterling" or the "Company") is pleased to report assay results from four drill holes, SC-26-14 through SC-26-17, at the MEPS Zone (" MEPS "), part of the Company's ongoing 20,000 metre drill program at the Soo Copper Project (" Soo Copper " or the " Project "), near Batchewana Bay, Ontario. The results build on the strong mineralization reported in SC-26-13 ( see press release dated August 10, 2026 ), demonstrating continuity of broad copper-molybdenum mineralization and higher-grade copper zones as drilling progresses east. Importantly, SC-26-16 intersected a granite porphyry stock at its shallowest depth to date and, for the first time, confirmed that the stock itself is mineralized, with elevated molybdenum and associated copper.

Highlights:

Strike of the MEPS discovery has increased by 300m now extending to over 1.3km highlighted by SC-26-16 intersecting 101m grading 0.5% CuEq including 12m of 1.7% CuEq within 450.92m of 0.30% CuEq from the top of bedrock.

SC-26-16 intersected a granite porphyry stock at 301m downhole. The stock was associated with disseminated molybdenum, high grade molybdenum veining and associated copper grading 0.32% CuEq over 162m with the final 3m returning elevated molybdenum grades of 2,080ppm, 2,060ppm and 659ppm (copper equivalent grades of 1.16%, 1.07% and 0.35% CuEq, respectively).

Mineralized, molybdenum-rich intrusions are commonly associated with the central portions of porphyry systems, providing an important vector for ongoing drilling as Sterling continues to test a system that remains open to the east and at depth.

Jeremy Niemi, P.Geo., Senior Vice President, Explorat