Castile Resources Ltd · ASX:CST
Castile Resources — Investor Presentation (May 2026)
15 slides from Castile Resources's investor presentation, May 14, 2026
Slide 1: Castile Resources Ltd: Gold and Downstream Critical Minerals
CASTILE RESOURCES LTD Gold and Downstream Critical Minerals GOLD | COPPER | BISMUTH | COBALT | MAGNETITE MAY 2026 ASX:CST OTCID:CLRSF Refer to disclaimers on slides 17-18. Not an offer of securities. castile.com.au
Slide 2: Competent Person Statement and Disclaimer
COMPETENT PERSON STATEMENT AND DISCLAIMER Competent Person Statement The information contained in this presentation has been previously reported by the Company on 12 February 2020, 3 December 2019, ASX:CST 27 September 2022 Annual Report, ASX:CST 5 December 2022 Rover 1 Preliminary Feasibility Study
Slide 3: The Rover 1 Project: A High-Grade IOCG Deposit
THE ROVER 1 PROJECT A HIGH-GRADE IOCG DEPOSIT Five Revenue Streams | BFS 2026 GOLD AND COPPER Tennant Creek ANCHOR VALUATION The Rover 1 Project BANKABLE FEASIBILITY STUDY DUE IN 2026 The Tennant Creek Mineral Primary near-term re-rate catalyst field has historically produced over 4.6Moz of gold and
Slide 4: Why Castile? Why Now?
INVESTMENT CASE Why Castile? Why Now? A near-BFS, high-grade iron oxide copper-gold (IOCG) project with three critical minerals, in a Tier-1 jurisdiction, independently validated by A$311M peer transaction in the same mineral field. 01 02 03 04 High-grade Iron Oxide BFS — Re-rating Catalyst Critical
Slide 5: A rich, high-grade IOCG deposit
DRILLING HIGHLIGHTS 90,000M OF DIAMOND DRILLING A rich, high-grade IOCG deposit B O N A NZA GO L D I N T ER CEPTS 30.4m @ 36.50 g/t Au from 506.5m (20CRD001) 7m @ 125.93 g/t Au from 542m (WGR1D034) 20m @ 32.61 g/t Au from 469m (WGR1D003) 10m @ 47.97 g/t Au from 471m (R1ARD41-1) 12m @ 58.40 g/t Au fr
Slide 6: Key Metals Gold and Copper Anchor the Valuation
PRODUCTION PROFILE PRODUCTION OUTLOOK — BFS DUE IN 2026 Key Metals Gold and Copper Anchor the Valuation GOLD COPPER ~30,000 oz Annual Production ~7,000t Annual Production 41% Mineral Resource Estimate uplift in Oct 2025 added into upcoming 2026 BFS Production profile as per PFS Dec-2022 (ASX:CST 5 D
Slide 7: Why Did the Bismuth Price Run Over 800% Since March 2025?
WHY DID THE BISMUTH PRICE RUN OVER 800% SINCE MARCH 2025? THE CRITICAL MINERAL THE MARKET IS PAYING FOR • China produces 83% of 4N (99.99%) global Bismuth Supply • Used in Missiles and new superior Microchips • Castile offers rare Western World Supply opportunity • Current Price 4N (99.99%) Bismuth
Slide 8: Gold, Copper and Bismuth to be Updated into BFS from Increased Mineral Resource Estimate
MINERAL RESOURCE ESTIMATE OCTOBER 2025 MRE — 41% TONNAGE UPLIFT TO BE INCLUDED IN BFS Gold, Copper and Bismuth to be Updated into BFS from Increased Mineral Resource Estimate 341.3 koz 97.4 kt 8,900 t 5,200 t 1.88 Mt GOLD COPPER BISMUTH COBALT MAGNETITE +8% vs prior +17% vs prior +51% vs prior +30%
Slide 9: Beneficiation in Tennant Creek, refining in Darwin
BENEFICIATION & DOWNSTREAM ROVER 1 → MIDDLE ARM → GLOBAL MARKETS Beneficiation in Tennant Creek, refining in Darwin [ FLOWSHEET DIAGRAM — Crushed ore → Grinding → Gravity Au → Bulk sulphide float → Magnetic separator → Gold doré, Cobalt metal, Copper metal, 96.5% Magnetite, Bismuth concentrate ] PRO
Slide 10: Downstream refining in Darwin at MASDP
MIDDLE ARM SUSTAINABLE DEVELOPMENT PRECINCT COMMONWEALTH-BACKED CRITICAL MINERALS PRECINCT Downstream refining in Darwin at MASDP CASTILE LAND ALLOCATION AT MASDP PROPOSED CASTILE CRITICAL MINERALS REFINERY AT MASDP Major Project Status Awarded by NT Government (April 2024) — accelerated approvals p
Slide 11: Pan African pays A$311M for Emmerson in the Adjacent Tennant Creek Mineral Field
ASX:CST | OTCID:CLRSF INDEPENDENT VALIDATION AS PAN AFRICAN INVESTS A$450M IN SCRIP OVER TWO TRANSACTIONS Pan African (LSE:PAF) pays A$311M for ERM in the Adjacent Tennant Creek Mineral Field PAF’s second takeover in the region THE PAF / EML TRANSACTION READ-ACROSS FOR CASTILE Acquirer Pan African R
Slide 12: Passive Seismic Survey Program using Ambient Noise Tomography to assess 100+ IOCG targets
DISTRICT-SCALE EXPLORATION ROVER MINERAL FIELD — A STRATIGRAPHIC REPEAT OF THE TENNANT CREEK MINERAL FIELD Passive Seismic Survey Program using Ambient Noise Tomography (ANT) to assess over 100+ IOCG targets in Australia's richest Copper-Gold district CASTILE IS USING AMBIENT NOISE TOMOGRAPHY(ANT) T
Slide 13: X Marks the Spot
PASSIVE SEISMIC SURVEYS AND AMBIENT NOISE TOMOGRAPHY (ANT) WITH INVERSION ANALYSIS T HE F I R S T HO L E EV ER D R I L L ED U S I N G P AS S I V E S I ES M I C A N T I N V ER S I ON Exploration drilling begins in late May 2026 X Marks the Spot F o u r Ge o p h y s i cal I n d i c ators Hi t t in g t
Slide 14: A Mispriced, near-BFS, Gold and Critical Minerals Play
CASTILE RESOURCES — THE ASK ASX:CST | OTCQB:CLRSF THE OPPORTUNITY A Mispriced, near-BFS, Gold and Critical Minerals Play What we have Where we're going Why now ■ High-grade IOCG deposit with bonanza ■ BFS delivery 2026 ■ PAF/EML A$311M transaction validates intercepts district ■ Exploration drilling
Slide 15: Pathway from BFS to Funding
CAPITAL STRUCTURE & FUNDING PATHWAY CAPITAL MANAGEMENT Pathway from BFS to Funding I N D I C A T IV E F U N D ING P A T H W A Y 1 Pre-BFS Runway Cash A$9.8M funding BFS completion and exploration program 2 BFS 2026 Capex envelope + NPV defined — unlocks valuation Pre-funding 3 Offtake & Strategic Ac