Slide 1: The Missing Copper Porphyry of the Midcontinent Rift
JANUARY 2026 TSXV: SAG | OTCQB: SAGGF THE MISSING COPPER PORPHYRY OF THE MIDCONTINENT RIFT TSXV: SAG | OTCQB: SAGGF | STERLINGMETALS.CA
Slide 2: Disclaimer
DISCLAIMER Cautionary Note Regarding Forward-looking Information Market and Industry Data (continued) This presentation is intended to be strictly informational. Sterling Metals Corp. (“Sterling Metals” or the References in this presentation to reports and publications should not be construed as dep
Slide 3: The Makings of a Potential Copper Giant
THE MAKINGS OF A POTENTIAL COPPER GIANT Ontario and Canada – Tier one and JURISDICTION proven for mining 1 hour north of port of Sault Ste Marie, INFRASTRUCTURE 10km from Trans Canada Highway, 20km from rail 30 km copper mineral system associated with the SCALE Midcontinent Rift 262.5m at 1.05% CuEq
Slide 4: Canada's Copper Moment
CANADA’S COPPER MOMENT A DOMESTIC NEED FOR THE MOST CRITICAL METAL WORLD RESERVES OF COPPER BY COUNTRY (2023) 2 CANADA’S MAJOR PROJECT OFFICE Of initial projects, two are copper mines And five are mining projects Advancing major infrastructure projects Streamlining regulatory assessment St
Slide 5: Ontario Critical Metals
ONTARIO CRITICAL METALS FAST TRACKING CRITICAL METALS One Project, One Process (1P1P) Reduce permitting timelines Building new mines faster Structure, transparency and predictability “Unlocking a made in Ontario Critical Supply Chain - To protect Ontario…we will make the investments needed to
Slide 6: Soo Copper Project
SCALE SOO COPPER PROJECT IDEAL CONDITIONS FOR GIANT COPPER PORPHYRY FORMATION Major copper belt (MCR) Junction of MCR and KSZ Rift magma underplate and partial melt fertile lower- crust with in KSZ Missing porphyry 1. Drill result reported by Talon Metals: Talon Metals Reports Record Assays
Slide 7: Soo Copper Project
SCALE SOO COPPER PROJECT GIANT COPPER POTENTIAL HIDING IN PLAIN SIGHT Cave Showing At MEPS Discovery Mid-1800s 1965-1973 ~1974 2021 2023 2024 2025 2026 Exploration in Production from Mine closures, District Drilling confirmed Sterling acquires Sterling new Sterling Resource the Mamainse Copper Corp
Slide 8: MEPS Discovery Is Tip of the Iceberg
SCALE SOO COPPER PROJECT MEPS DISCOVERY IS TIP OF THE ICEBERG Systematic exploration identifies large copper system and MEPS Discovery is at the northern edge Sterling’s work to date consists of ~3,000 soil samples, 23km2 of IP/Resistivity, reprocessing of 700km of ZTEM, review and digitization
Slide 9: MEPS Discovery
GRADE MEPS DISCOVERY DEVELOPING A HIGHER GRADE BORNITE CORE WITHIN A CONTINUOUSLY COPPER MINERALIZED ZONE OPEN IN ALL DIRECTIONS 1. As reported in Sterling Metals press release dated September 29, 2025 2. As reported in Sterling Metals press release dated January 15, 2026 TSXV: SAG | OTCQB: SAGGF |
Slide 10: MEPS Discovery: High Grade Copper Related to GFP Porphyry Dykes
GRADE MEPS DISCOVERY HIGH GRADE COPPER RELATED TO GFP PORPHYRY DYKES 262.5m of 1.05% CuEq starting from 47.5m downhole, including a new 68.3m thick bornite zone grading 3.25% CuEq starting at 179.7m downhole, featuring semi-massive bornite and chalcopyrite grading up to 9.3m of 19.98% CuEq1 1. As re
Slide 11: MEPS Discovery: High Grade Copper Related to GFP Porphyry Dykes
GRADE MEPS DISCOVERY HIGH GRADE COPPER RELATED TO GFP PORPHYRY DYKES The GFP dyke hosts copper stockwork veins next to the semi-massive high-grade copper sulphides in the surrounding mafic volcanics. MEPS-25-02 grading 33% Cu, 0.342 g/t Au and 210 g/t Ag over 0.55m MEPS-25-02 GFP grading 0.85% Cu, 0
Slide 12: MEPS Discovery: High Grade Copper in 2025 Drilling
GEOLOGY MEPS DISCOVERY HIGH GRADE COPPER IN 2025 DRILLING CH-25-01 157.7-158.2m: 8.23%Cu, 1.28g/t Au, 13.6 g/t Ag1 MEPS-25-02 219.85-220.45m: 21.3%Cu, 196g/t Au, 168 g/t Ag2 MEPS-25-09 255.7-259m: 14.9%Cu, 0.56g/t Au, 26.6 g/t Ag3 MEPS-25-11 349.55-349.83m: 13.1%Cu, 0.2g/t Au, 22g/t Ag3 1. As report
Slide 13: Three Phases of Mineralized Porphyry Dykes
GEOLOGY MEPS DISCOVERY THREE PHASES OF MINERALIZED PORPHYRY DYKES PHASE 1 (GFP-early) PHASE 2 (mid) Second phase weakly potassic to hematite altered medium-grained porphyry Minor stockwork veins – qz-ksp-bt +/- cpy-py-bn(tr.) and fine-grained pyrite replacing chlorite in the groundmass PHASE 3 (
Slide 14: Three Phases of Mineralized Porphyry Dykes
GEOLOGY MEPS DISCOVERY THREE PHASES OF MINERALIZED PORPHYRY DYKES Phase 3 represents the youngest intrusive phase based on cross- cutting relationships PHASE 1 PHASE 3 The Phase 3 is dated to ~1.1Ga based on Re-Os dating performed on molybdenite samples1 Multi-phased syn-mineral dyke swarm abo
Slide 15: Three Phases of Mineralized Porphyry Dykes
GEOLOGY MEPS DISCOVERY THREE PHASES OF MINERALIZED PORPHYRY DYKES Cluster of well mineralized earliest GFP dykes intersected within MEPS target area in association with the highest copper grades Drillhole Porphyry Phases The porphyry system is exposed Phase 1 (GFP) over ~2.5km of strike, with th
Slide 16: MEPS Discovery: Tip of the Iceberg
SCALE AND GRADE MEPS DISCOVERY TIP OF THE ICEBERG NW-SE Section Reinterpreted - 2014 Looking NE ZTEM Resistivity Cpy-Bn in Outcrop MEPS Discovery A A ~ 200 m ’ ~ 750 m <100 Ohm-m 2026 Drill targets –Resistivity Lows TSXV: SAG | OTCQB: SAGGF | STERLINGMETALS.CA
Slide 17: Multi-Kilometer Copper Corridor Emerging
SCALE AND GRADE SOO COPPER PROJECT MULTI-KILOMETER COPPER CORRIDOR EMERGING At the Gimlet Target Area, 93 copper- bearing samples including 38 containing bornite were collected across a 2km area. Gimlet is the largest concentration of bornite in outcrop discovered to date and lies approximately
Slide 18: On the Doorstep of a Potential Copper Giant
SCALE AND GRADE SOO COPPER PROJECT ON THE DOORSTEP OF A POTENTIAL COPPER GIANT NE-SW Section Reinterpreted - 2014 ZTEM Resistivity Gimlet Looking NW MEPS Target Discovery B’ B ~ 400 m ~ 700 m ~ 900 m <100 Ohm-m 2026 Drill targets –Resistivity Lows 8 km Cpy-Bn in Outcrop TSXV: SAG | OTCQB: SAGGF | ST
Slide 19: Contact Us
TSXV: SAG CONTACT US 416-643-3889 info@sterlingmetals.ca @sterlingmetals www.sterlingmetals.ca MEPS Cave Showing - TSXV: SAG | OTCQB: SAGGF | STERLINGMETALS.CA Bornite Mineralization