Slide 1: Securing North American Supply of Critical Minerals
Securing North American Supply of Critical Minerals Emerging High-Grade Magmatic Nickel Sulphide District Copper-Cobalt+PGE-Au Associated Mineralization Saskatchewan, Canada CSE:FNI FSE:6Q5 OTC:FNICF Corporate Presentation March 2026 | 1
Slide 2: Notice To Reader
Notice To Reader Certain information set forth in this presentation contains “forward-looking Although forward-looking statements contained in this presentation are based information”, including “future oriented financial information” and “financial upon what management of Fathom believes are reason
Slide 3: Geological Setting of Fathom Projects
Geological Setting of Fathom Projects Located in the Trans Hudson Orogen, host to numerous world-class mining camps Deposit Project Owner Commodity Status Type Past Producer: ~26k tonnes @ Ni-Cu-Co + 3E¹ 3.28% Ni, 1.83% Cu, 9.63 g/t Albert Lake + Au 3E Fathom Magmatic Exploration 1 Gochager Nickel S
Slide 4: Why Fathom – Why Saskatchewan
Why Fathom – Why Saskatchewan Discovery Size Ni Cu Co 3E¹ Takeover Deposit Name Location Discovery Co. Takeover Co. Date (M tonne) wt % wt% wt % (g/t) Price Tag Namew Lake MN Canada Hudbay Outukumpu Mined out 1984 2.57 1.79 0.63 1.20 Voisey's Bay NL Canada Diamond Resources INCO (Vale) 1996 31.70 2.
Slide 5: Fathom Nickel Portfolio
Fathom Nickel Portfolio Three Very Prospective Ni-Cu+Co±PGE-Au Projects: Albert Lake • 133,000+ hectares Southend • 100% ownership Albert Lake • Historic Rottenstone Mine (1965-1969)² • Small open pit mine: grade 3.28% Ni, 1.83% Cu, 9.63 g/t 3E¹ Friesen • South Albert Lake new gold discovery Lake Go
Slide 6: Gochager Lake Project Ni-Cu+Co
Gochager Lake Project Ni-Cu+Co CSE:FNI FSE:6Q5 OTC:FNICF Corporate Presentation March 2026 | 6
Slide 7: Long-Section Gochager Lake Deposit
Historic Gochager Lake Deposit Long-Section Gochager Lake Deposit From To Length Ni Cu Co Drillhole (m) (m) (m)* wt% wt% wt% GL23003 124.45 182.65 58.20 1.49 0.38 0.11 including 125.80 147.65 21.85 2.26 0.50 0.17 GL23004 250.15 275.00 24.85 0.58 0.19 0.05 including 250.90 253.20 2.40 1.38 0.43 0.11
Slide 8: Exploration Success & Demonstrating Scale
Exploration Success & Demonstrating Scale • 2024-2025 soil geochemistry highlights minimum 8.0km strike of highly anomalous Ni-Co-Cu + critical pathfinder elements Cr-Mg • Historic Gochager Lake deposit host intrusion, the “Container Rock” continues along strike east-northeast a minimum 3.5km • Mult
Slide 9: Q1-2026 Drill Program
Q1-2026 Drill Program • Commencing March 1, 2026, 3,000-4,000 meters diamond drilling • Drilling will test existing EM anomalies coincident with favourable soil / rock geochemistry, Areas A, B, C, D: • A – The Camp Anomaly, >900m favourable soil and rock geochemistry • B – Gochager East Extension An
Slide 10: Common Magmatic Source
Common Magmatic Source • 10km distance between Gochager Lake Deposit – Gochager Lake Deposit Mal Lake Nickel Occurrence 2023 drillhole 58.2 m 1.49% Ni, 0.38% Cu, 0.11% Co • Both mid-1960’s Nickel-Copper-Cobalt discoveries • Both hosted in similar rock type and similar lithogeochemistry • Both have s
Slide 11: Gochager Cobalt Mineralization
Gochager Cobalt Mineralization Polished Thin Section GL23003 @ 144.5m Coarse granular pentlandite Pn Pn Po Loop pentlandite (Pn) on pyrrhotite Pn (Po) grain boundaries 0.5mm • Microprobe work highlights Gochager unique and high cobalt content in pentlandite • Relative to other world class nickel dis
Slide 12: Exploration Model
Exploration Model Clustering of Magmatic Nickel Sulphide Ore Deposits At Gochager Lake deposit: Chaotic multi-phase intrusions Disseminated Ni-Cu-Co sulphides Massive-vein Ni-Cu-Co sulphides Semi-massive to massive, breccia Ni-Cu-Co sulphides Voisey’s Bay The Ovoid Massive Ni-Cu-Co Sulphide
Slide 13: Rottenstone Mine Operation
Rottenstone Mine Operation Albert Lake Project circa 1965 Ni-Cu-Co+PGE-Au CSE:FNI FSE:6Q5 OTC:FNICF Corporate Presentation March 2026 | 13
Slide 14: Exploration Success & “Proof of Concept”
Exploration Success & “Proof of Concept” Three, new Rottenstone-like Discoveries Fathom drilling 2021-2024 • Bay-Island Trend • Nic5 – Tremblay-Olson • The Dime • 4th – Rottenstone Mine Extension, deposit extended minimum 40m south – also potential footwall offset Proof of concept: Rottenstone his
Slide 15: Rottenstone Nic5 – Tremblay-Olson
Rottenstone Mineralization Ni-tenor Rottenstone Deposit South Extension • Up to 40m south of Rottenstone deposit Rottenstone Style Mineralization Bay-Island Drillhole AL21024 Ni-tenor = up to 17% Trend • 1.46% Ni, 1.39% Cu, 0.05% Co, 6.91 g/t 3E¹ / 4.00m AL22052 • with 1.71% Ni, 1.21% Cu, 0.06% Co,
Slide 16: PGE Perspective & Potential
PGE Perspective & Potential Zone PGE+Au 3E¹ Pd Pt Rh Ir Os Ru Au Ag Ni Cu Co Palladium 1 Year Price Chart g/t g/t g/t g/t g/t g/t g/t g/t g/t g/t wt% wt% wt% 2017 Met Sample (Rottenstone Mine Rock) 10.50 10.00 5.76 3.71 0.20 0.11 0.13 0.06 0.53 7.00 4.08 1.38 0.09 Float South Rottenstone Pit Boundar
Slide 17: PGE Perspective & Potential
PGE Perspective & Potential Length 3E¹ Pd Pt Au Ni Cu Co Ag Platinum 1 Year Price Chart Zone Drillhole Id From To (m)* g/t g/t g/t g/t wt% wt% wt% g/t Rottenstone Mine Extension AL21024 4.50 11.41 6.91 4.39 1.31 3.06 0.02 1.13 0.93 0.04 0.74 Rottenstone Mine Extension including 6.77 10.77 4.00 6.91
Slide 18: Albert Lake South – Gold Zone
Albert Lake South – Gold Zone • Fathom August 2024; 144 outcrop grab samples collected along strike of Ranger-001 gold discovery in a structurally complex area as defined by Gradient MAG survey flown by Fathom in 2022 • New Gold Zone discovery • Outcrop grab sample 2.68 g/t Au ~ 14km along strike th
Slide 19: Company Milestones
Company Milestones Private company 2015 – 2021: • Secured a stranded asset - the Rottenstone property in 2015 • Expanded asset to 90,000+ha and renamed Rottenstone property to Albert Lake property prior to IPO Went public in May 2021: • Goal of IPO was to raise C$3-$5,000,000 • IPO closed on C$11,00
Slide 20: Company 2026 Outlook
Company 2026 Outlook Gochager Lake Project: Finance the project, C$4M raised February 2026 • Q1-2026 • Utilize Winter access trail permit to mobilize drilling equipment and fuel to project • Drill – 3,000-4,000m drill program to test along strike the Gochager Lake deposit to discover / define Goch
Slide 21: Company Snapshot
Company Snapshot Trading well below true value Cash Balance of ~ $3,700,000 Share Structure and Capitalization (as February 27, 2026) Share Price – 12 months (as of February 27, 2026) Shares % $0.06 Management & Insiders 58,594,684 19.4% Institutional (est.) 47,515,677 15.7% $0.05 Retail (est.) 195,
Slide 22: Management and Board
Management and Board Ian Fraser Doug Porter Alan Coutts CEO, VP Exploration, Director President, CFO, Director Director • Co-founder of Fathom Nickel, 35+ • Senior financial and • Senior mining executive with over years of mineral exploration accounting executive with 35 years domestic and internati
Slide 23: Ian Fraser
Ian Fraser CEO, VP Exploration, Director ifraser@fathomnickel.com +1(403) 650-9760 Doug Porter President, CFO, Director dporter@fathomnickel.com +1(403) 870-4349 CSE:FNI FSE:6Q5 OTC:FNICF Corporate Presentation March 2026 | 23