Slide 1: Nechako Project Cristal Project
TSX.V: RKR OTCQB: RKMSF FSE: 1RR1 NECHAKO PROJECT CRISTAL PROJECT Targeting District-Scale Porphyry Copper Systems For Discovery Return Potential in west-central British Columbia, Canada & northern Chile September 2026 www.rokmaster.com
Slide 2: Forward Looking Statements
2 Forward Looking Statements CAUTIONARY STATEMENT REGARDING FORWARD-LOOKING INFORMATION This presentation contains “forward-looking information” within the meaning of applicable Canadian securities regulations and “forward-looking statements” within the meaning of the United States Private Securitie
Slide 3: Value Proposition: Unlocking Discovery Return Potential
3 Value Proposition: Unlocking Discovery Return Potential COPPER & COPPER ASSETS With perhaps the best supply-demand fundamentals of all commodities, copper recently hit an all time high of ~$6.71/Lb (USD). Supported by strong tailwinds including electric vehicle demand, renewable power, data centre
Slide 4: Discovery Returns & Rokmaster Resources
4 Discovery Returns & Rokmaster Resources DISCOVERY RETURNS LASSONDE CURVE — DISCOVERY RETURN AREA Discovery returns are the outsized share-price and market- value re-rating that can occur when a company makes a meaningful mineral discovery and then proves it has the scale, continuity, and strategic
Slide 5: The Case for Copper: Why Copper? Why Now?
5 The Case for Copper: Why Copper? Why Now? COPPER DEMAND IS STRUCTURALLY RISING • Electrification Is the Core Driver ◦ Energy transition copper demand to triple by 2045 Source: BloombergNEF • Grid Buildout Requires Massive Copper ◦ ~US$7.5 trillion in transmission and distribution investment is nee
Slide 6: Cristal Project - Strategic Location in Chile
6 Cristal Project - Strategic Location in Chile CRISTAL PROJECT – STRATEGIC LOCATION IN CHILE REGIONAL HIGHLIGHTS REGIONAL LOCATION COPPER METALLOGENIC BELT • Chile — Proven Tier 1 Copper District • Low-risk region & mining-friendly country • Year-round climate • Excellent Access ◦ International Hig
Slide 7: Cristal Project - Strategic Location in Chile
7 Cristal Project - Strategic Location in Chile CRISTAL PROJECT – STRATEGIC LOCATION IN CHILE REGIONAL GEOLOGY — DOMEYKO FAULT SYSTEM CRISTAL — 150KM NORTH DOMEYKO FAULT ZONE — REGIONAL MAP OF LA MOCHA • The most important regional fault system along the Chilean porphyry belts is the Domeyko Fault s
Slide 8: Cristal Project - Strategic Location in Chile
8 Cristal Project - Strategic Location in Chile CRISTAL PROJECT – STRATEGIC LOCATION IN CHILE VICINITY GEOLOGICAL HIGHLIGHTS PALMANI PORPHYRY Cu-Mo TARGET • 10 km south of Cristal, narrow veins along the WFFZ are hosted in rocks that locally exhibit variable amounts of porphyry copper alteration • 1
Slide 9: Cristal Project – Northern Chile
9 Cristal Project – Northern Chile CRISTAL PROJECT – PROPERTY HIGHLIGHTS PROPERTY HIGHLIGHTS CRISTAL PROJECT CLAIMS CRISTAL PROJECT SITE • 9 km² land claims package • Location ◦ Western Andes area of Northern Chile ◦ ~10 km south of border with Peru — Huayillas (Peru & Chile) Quadrangle ◦ Arica Prov
Slide 10: Cristal Project — Northern Chile
10 Cristal Project — Northern Chile CRISTAL PROJECT – PROPERTY GEOLOGY PROJECT GEOLOGY SUPPORTIVE OF POTENTIAL PORPHYRY COPPER SYSTEM CRISTAL CLAIMS — MAG LOW ANOMALY • Cristal is located in northernmost Chile on the Western Andean Slope north of the Palmani Quebrada porphyry copper target — rocks b
Slide 11: Cristal Project — Northern Chile
11 Cristal Project — Northern Chile DATA-SUPPORTED POTENTIAL PORPHYRY COPPER TARGET CRISTAL CLAIMS — MAG LOW ANOMALY • Several strands of the West Fissure Fault Zone related to mineralization at several copper deposits in northern Chile trend through the project area • Proximity of the West Fissure
Slide 12: Cristal Project — Northern Chile
12 Cristal Project — Northern Chile CRISTAL PROJECT & AREA EXPLORATION WORK INTERSECTION OF WEST FISSURE FAULT & INCAPUQUIO FAULT ZONES Extensive Area Exploration & Drilling: • 1990s – Regional exploration by various companies along the West Fissure Fault Zone from Escondida Mine (BHP) to Chuquicama
Slide 13: Cristal Project — Northern Chile
13 Cristal Project — Northern Chile EXPLORATION RESULTS MAG LOW ANOMALY 1993 – Princeton Mining: • Believed to have intersected the distal portion of a porphyry system • Best porphyry potential interpreted to be north — in the vicinity of the current Cristal property • Abundant disseminated pyrite a
Slide 14: Cristal Project — Northern Chile
14 Cristal Project — Northern Chile EXPLORATION RESULTS CONT’D PORPHYRY COPPER TARGET AT DEPTH 2013 – BHP Results Cont'd: • Drill Hole INT003D: ◦ Intersected post-mineral ignimbrites and conglomerates to 607m before intersecting basement andesites of Cretaceous age at 905m ◦ Andesites contain local
Slide 15: Cristal Project Summary: Excellent Risk/Reward Investing Opportunity
15 Cristal Project Summary: Excellent Risk/Reward Investing Opportunity DISCOVERY-RETURN INVESTING OPPORTUNITY KEY INVESTMENT HIGHLIGHTS LASSONDE CURVE — DISCOVERY RETURN AREA • Cristal represents a large porphyry copper system based on existing geological and geophysical information • Supported by
Slide 16: Why the Cristal Project Matters
16 Why the Cristal Project Matters In a market increasingly focused on copper supply, electrification, infrastructure and energy transition, Cristal matters because new copper discoveries matter. WHY CRISTAL MATTERS PRIME GEOLOGICAL SETTING STRONG REGIONAL EVIDENCE OF COPPER MINERALIZATION Cristal i
Slide 17: Nechako Project — Strategic Location in British Columbia
17 Nechako Project — Strategic Location in British Columbia REGIONAL HIGHLIGHTS STIKINE TERRANE – NORTHERN NECHAKO BASIN • Strategic project location in the Northern Nechako Basin, an underexplored area of the highly productive Stikine Terrane • World-class Stikine Terrane — geologically similar to
Slide 18: Nechako Project – West Central, BC
18 Nechako Project – West Central, BC PROJECT HIGHLIGHTS NECHAKO PROJECT — PROPERTY MAP (FIGURE 1) • 28,238 Ha (282 km²) district-scale land package • Between Prince George & Smithers, BC • Fully Permitted for drilling in 2026 • Two types of mineralization: ◦ Cu-(Au+Mo) Porphyry related ◦ High Grade
Slide 19: Nechako Project – Mystery Property
19 Nechako Project – Mystery Property PROPERTY HIGHLIGHTS MYSTERY PROPERTY MAP IP SURVEY - LINE 1000 • Drill Ready, MYAB Permit, District-scale (12,193 Ha), Road Accessible 4 MINERALIZED ZONES • Ford Anomaly (High Priority) • B2 Zone (High Priority) • B3 Zone • Central Area POTENTIAL PORPHYRY MINERA
Slide 20: Nechako Project – Mystery Property
20 Nechako Project – Mystery Property EXTENSIVE HISTORICAL & RECENT FIELDWORK MYSTERY PROPERTY • First explored by Kennco, BP-Selco, Canamax & Noranda Exploration — initial geochemical surveys with positive results • 2012 – ZTEM Survey • 2025 – Large phase prospecting, mapping, channel, chip & soil
Slide 21: Nechako Project – Mystery Property
21 Nechako Project – Mystery Property RESULTS MYSTERY PROPERTY • 2025 High-Resolution Magnetic Survey identified several targets with coincident anomalous surface geochemistry & favorable alteration • Ford Anomaly: Large Cu-Au soil anomaly in the southern margin of the monzonite stock • B2 Zone: Sig
Slide 22: Nechako Project – Hanson Property
22 Nechako Project – Hanson Property PROPERTY HIGHLIGHTS HANSON PROPERTY — 5,349 HECTARES • Permitted, 5,349 hectares, Road Accessible, Drill Ready • 3 Mineralized Zones: ◦ Wilson (Highest Priority) ◦ Buckley (High Priority) ◦ Cyr Zone • “Closeology”: ~20 kms North of Endako Moly Mine (Centerra) POT
Slide 23: Hanson Property – April 2026 Maiden Drilling Program
23 Hanson Property – April 2026 Maiden Drilling Program WILSON ZONE HIGHLIGHTS HANSON LAKE HANSON PROPERTY — WILSON ZONE • Occurs along a major north-trending intrusive contact between the Hanson Phase and Stern Creek Phase of the Endako Batholith • 900 x 800 m open soil anomaly with high Mo (10-126
Slide 24: Nechako Project – Fox-Coconut Property
24 Nechako Project – Fox-Coconut Property PROPERTY HIGHLIGHTS FOX-COCONUT PROPERTY MAP • MYAB Permit, 4,998 hectares, Road Accessible, Drill Ready • 2 Mineralized Zones: ◦ Fox Showing ◦ Coconut Area (incl. NW Structure) • “Closeology”: ~17 kms South of Endako Moly Mine (Centerra) TWO DISTINCT MINERA
Slide 25: The Kootenay Arc
25 The Kootenay Arc Kootenay Arc:
Slide 26: Duncan Lake Project – Kootenay Arc, Southeastern BC
26 Duncan Lake Project – Kootenay Arc, Southeastern BC PROPERTY HIGHLIGHTS DUNCAN LAKE PROJECT MAP LOOKING NORTH FROM MAG ZONE • 1,648 hectares, Road Accessible, Excellent Infrastructure, Permitted, Drill Ready with Tier 1 Targets • Proximity to Teck Resources’ Pb-Zn smelter in Trail, BC • 5 Defined
Slide 27: Duncan Lake Project – Kootenay Arc, Southeast BC
27 Duncan Lake Project – Kootenay Arc, Southeast BC RESULTS DUNCAN LAKE HISTORICAL EXPLORATION DUNCAN LAKE SHORELINE • North Mine ◦ C89-5 – 7.1% Zn, 4.6% Pb over 8.0 m ◦ C91-7 – 11.4% Zn, 0.8% Pb over 4.8 m ◦ C97-12 – 6.2% Zn, 6.3% Pb over 7.5 m ◦ 2021 – Rock samples – 6.28% Zn, 9.38% Pb, 78.0 g/t A
Slide 28: Duncan Lake Project – Kootenay Arc, Southeast BC
28 Duncan Lake Project – Kootenay Arc, Southeast BC RESULTS CONT’D DUNCAN LAKE PROJECT JACK AT DUNCAN LAKE • No. 3 Zone ◦ 2018 – Sample – 21.44% Zn, 13.0% Pb ◦ 2018 – Float sample – 12.4% Zn, 1.1% Pb, 7.0 g/t Ag ◦ 2023 – Sample P304651 – 22.51% Zn, 21.76% Pb, 49.8 g/t Ag ◦ 2025 – Channel sample, Tre
Slide 29: Selkirk Precious & Base Metals Project – Revelstoke, BC
29 Selkirk Precious & Base Metals Project – Revelstoke, BC PROPERTY HIGHLIGHTS SELKIRK PROJECT MAP • 100% Owned – 1,666 hectares (16.6 km²) • Road & helicopter accessible, MYAB permits • Located north of Revelstoke, BC on the prolific Kootenay Arc 2 PROPERTIES • Downie Gold Property – 1,367 ha • Rif
Slide 30: Selkirk Precious & Base Metals Project – Revelstoke, BC
30 Selkirk Precious & Base Metals Project – Revelstoke, BC RESULTS / FINDINGS CONT’D DOWNIE GOLD PROPERTY RIFT PROPERTY • Downie Gold Property Cont’d ◦ KJ Zone – Hosts elevated gold in massive pyrrhotite-pyrite-galena mineralization associated with discordant stockwork veins and silicification in li
Slide 31: Big Copper Project – Southeast BC
31 Big Copper Project – Southeast BC PROPERTY HIGHLIGHTS BIG COPPER PROJECT MAP JACK AT BIG COPPER • Road accessible, permitted – Southeast BC, ~50 km NW of Kimberley • ~100 km NE of Teck Resources’ smelter in Trail, BC OBSERVED MINERALIZATION • Hosts a copper mineralized deformation and alteration
Slide 32: Big Copper Project – Southeast BC
32 Big Copper Project – Southeast BC RESULTS BIG COPPER HISTORICAL EXPLORATION BIG COPPER PROPERTY • 1965 Cominco Drill Holes ◦ DDH 1A – 4.4 m of 3.30% Cu ◦ DDH 3 – 4.1 m of 1.20% Cu ◦ DDH 4 – 3.0 m of 0.20% Cu ◦ DDH 5 – 1.5 m of 1.60% Cu • 1967 Pharoah Mines Drill Holes ◦ S1 – 12.2 m of 0.92% Cu, 6
Slide 33: TSXV: RKR – Investment Opportunity
33 TSXV: RKR – Investment Opportunity UNLOCKING DISCOVERY RETURN POTENTIAL AT DISTRICT-SCALE PORPHYRY COPPER ASSETS DISCOVERY RETURN POTENTIAL THE CASE FOR COPPER NECHAKO PROJECT — BC, CANADA • Nechako and Cristal position Rokmaster to • Rokmaster is focused on making Porphyry • 26,932 Ha district-s
Slide 34: Capital Structure – TSX-V: RKR
34 Capital Structure – TSX-V: RKR SHARE INFORMATION SHARE OWNERSHIP Issued and Outstanding 198,840,000 Warrants 14,275,000 Stock Options 5,500,000 34% Fully Diluted 218,615,000 52% TRADING SYMBOLS 14% TSX-V (Canada) RKR OTCQB (United States) RKMSF Frankfurt (Germany) 1RR1 Insiders, Family & Close As
Slide 35: Experienced Management Team & Technical Advisors
35 Experienced Management Team & Technical Advisors MANAGEMENT TEAM John Mirko CEO & Director Michael ("Mike") Cowin Chairman & Director Matthew Parent President & Director Adam Pankratz, MBA, MA Director Michael Malana CFO & Corporate Secretary Connor Malek VP of Exploration GEOLOGICAL CONSULTANTS
Slide 36: Contact Information
36 Contact Information KEY CONTACTS John Mirko CEO & Director Email: jmirko@rokmaster.com Phone: 604-290-4647 Matt Parent President & Director Email: mparent@rokmaster.com Phone: 647-545-0338 HEAD OFFICE CORPORATE INFORMATION Rokmaster Resources Corp. Legal Counsel Gowling Lafleur Henderson LLP 615