Slide 1: New Results Show Growth Beyond 1.8Moz Resource
ASX | SGC rsonal use only New Results Show Growth Beyond 1.8Moz Resource MT HENRY GOLD PROJECT, NORSEMAN, WESTERN AUSTRALIA Mining Forum Americas - Denver 28-30 September 2026
Slide 2: Disclaimers & Cautionary Statements
Disclaimers & Cautionary Statements GENERAL DISCLAIMER This presentation is for information purposes only and does not constitute a prospectus, offering memorandum or disclosure document under Australian, U.S., Canadian or any other law. It does not, and does not purport to, contain all the informat
Slide 3: Corporate Snapshot
Corporate Snapshot GLOBAL BANKING & ANALYST COVERAGE rsonal use only CAPITAL STRUCTURE Cash on Hand 1 $38.2m Share Price2 $1.20 Shares Outstanding 185.7m Market Capitalisation $223M Performance Rights / Options 58.2M / 1.25M SHAREHOLDER SUMMARY3 Institutional Ownership (Global) ~30% Westgold Resourc
Slide 4: Years of Limited Drilling. Now That's Changing.
30 Years of Limited Drilling. Now That’s Changing. 1.8Moz @ 1.2g/t Au 50,000 8,000 rsonal use only Drill metres / yr Interim MRE Gold price (A$/oz) Sinclair’s Maiden 50,000m CY26 Drill Program 7,000 Only 20,000m drilling 40,000 6,000 Included in the 1.8Moz MRE Gold Price (A$) Drill metres / yr 5,000
Slide 5: Mt Henry Is A Proven Gold Producer
Mt Henry Is A Proven Gold Producer Mt Henry History1,2 rsonal use only • Historic feasibility study completed (Panoramic, 2015)2 • Mt Henry was acquired by Metals X • Developed and mined by Metals X / Westgold • Open-pit mining operations (2016 to 2019) • Average recovered grade ~1.7 g/t Au • ~129ko
Slide 6: Large, Shallow Resource in Tier 1 Western Australia
Large, Shallow Resource in Tier 1 Western Australia SCALE SHALLOW GROWTH DEVELOPMENT 1.8Moz ~90% 5 rigs Simple, Shallow rsonal use only Drilling ongoing, focused @ 1.2g/t Au within ~ 200m of surface Open-pit potential on growth • ~100% growth in 6 months. • Broad and thick (up to 50m). • OPEN at dep
Slide 7: A High Density of Shallow Ounces And Still OPEN
A High Density of Shallow Ounces And Still OPEN The Mt Henry Gold Project Ounces per Vertical Metre rsonal use only Ounces per Vertical Metre 0 2,000 4,000 6,000 8,000 10,000 12,000 14,000 0 20 40 Vertical Depth Below Surface (RL) 60 80 100 120 140 160 180 200 200m RL 220 240 OPEN at depth Drilling
Slide 8: 1.8Moz Defined Across A Much Larger Gold System
1.8Moz Defined Across A Much Larger Gold System 16km Corridor Deposits remain OPEN Significant untested areas Multiple growth options Extensive BIF hosted 1.8Moz within Mt Henry, Large gaps and strike extensions Clear pathways for ongoing rsonal use only mineralized trend Selene & North Scotia. rema
Slide 9: ~100% Growth in Months. More Growth To Come
~100% Growth in 6 Months. More Growth To Come December 2025 Feb - March 2026 March - Sept 2026 INTERIM RESOURCE UPDATE rsonal use only TRANSACTION ANNOUNCED MOBILISATION RAPID EXPANSION 48Mt @ 1.2g/t Au Acquisition of Mt Henry announced Completed transaction. First rig mobilised. Four rigs o
Slide 10: Selene: Strong Growth And Still Open
Selene: Strong Growth And Still Open AT ACQUISITION INTERIM RESOURCE WHAT DRILLING DELIVERED rsonal use only 0.7Moz Au 0.9Moz Au Resource growth Increased scale 19Mt @ 1.1g/t Au ~25Mt @ 1.1g/t Au Further growth Increased confidence potential Never mined RAPID GROWTH A$2,160/oz ~90m Assays pending fo
Slide 11: Selene: 0.9Moz Resource Is Shallow, Thick And Open
Selene: 0.9Moz Resource Is Shallow, Thick And Open Birthday Gift ~1km Selene Oblique View (1.5km strike length) (looking north-east) Plutus rsonal use only 59m @ 1.3g/t Au 36m @ 1.6g/t Au from 82m from 31m ~200m 59m @ 1.2g/t Au 51m @ 1.1g/t Au from 70m from 73m 60m @ 1.4g/t Au 60m @ 1.7g/t Au from 6
Slide 12: Already Extending Beyond The 0.9Moz Resource
Already Extending Beyond The 0.9Moz Resource Selene Oblique View (1.5km strike length) Selene is a thick, consistent shallow dipping, orebody Birthday Gift N (looking north-east) ~1km Cross section of 6413100mN (looking North) rsonal use only Cross Section A’ Plutus A’ Cross Section SELD0016 ~200m O
Slide 13: Open, Drilling Ongoing, Multiple Growth Pathways
Open, Drilling Ongoing, Multiple Growth Pathways Birthday Gift Selene Oblique View (1.5km strike length) ~1km (looking north-east) Plutus rsonal use only ~200m Plutus Southern Thickness Target OPEN Trend OPEN 200m (oblique) OPEN Legend Indicated MRE Inferred MRE The Resource is SHALLOW Planned CY26
Slide 14: Selene: How Big Could a Shallow 0.9Moz Resource Become
Selene: How Big Could a Shallow 0.9Moz Resource Become 2026 rsonal use only 20161 BIBRA - 2016 SELENE - 2026 26Mt @ 1.1g/t Au for 0.9Moz 25Mt @1.1g/t Au for 0.9Moz (81% Indicated, Resource2: Resource: (100% Inferred @ 0.5g/t cut-off) 19% Inferred, 0.5g/t cut-off) Geometry2: ~25º dip Geometry: ~20º d
Slide 15: Mt Henry: Strong Growth And Still Open
Mt Henry: Strong Growth And Still Open AT ACQUISITION INTERIM RESOURCE WHAT DRILLING DELIVERED rsonal use only 0.2Moz Au 0.9Moz Au Resource growth Increased scale 4.8Mt @ 1.5g/t Au ~22Mt @ 1.2g/t Au Further growth Increased confidence potential Historic open-pit mine RAPID GROWTH A$2,160/oz ~35m Ass
Slide 16: Mt Henry: 0.9Moz Across ~2km And Still OPEN
Mt Henry: 0.9Moz Across ~2km And Still OPEN Artemis Mt Henry Oblique View Artemis Target 50m (looking east) rsonal use only Birthday Gift 300m 26m @ 1.4g/t Au Birthday Gift from 29m 22m @ 2.4g/t Au OPEN from 87m 24m @ 1.2g/t Au from 145m 14m @ 1.9g/t Au 45m @ 1.1g/t Au from 137m from 161m 25m @ 1.4g
Slide 17: Multiple Lodes Extend Beyond The 0.9Moz Resource
Multiple Lodes Extend Beyond The 0.9Moz Resource Artemis Mt Henry Oblique View (2km strike length) Artemis Target 50m (looking north-east) rsonal use only Cross Section Birthday Gift ~300m OPEN OPEN 23m @ 1.4g/t Au from 239m inc. 15m @ 1.9g/t Au 9m @ 1.1g/t Au from 176m 18m @ 1.8g/t Au from 315m 13m
Slide 18: Drilling Continues To Target Extensions
Drilling Continues To Target Extensions Artemis Mt Henry Oblique View (2km strike length) Artemis Target 50m (looking north-east) rsonal use only Birthday Gift 300m Birthday Gift OPEN OPEN OPEN N Legend OPEN Indicated MRE Inferred MRE Results >10gm Results <10gm 200m Planned CY26 hole Assays pending
Slide 19: The Next Generation of Potential Growth
The Next Generation of Potential Growth Birthday Gift Long Section (looking east) 20m @ 2.6g/t 10m @ 88.2g/t 23m @ 1.9g/t 27m @ 1.0g/t 17m @ 1.9g/t 2m @ 15.8g/t 2m @ 46.3g/t 9m @ 3.2g/t 5m @ 7.7g/t 25m @ 1.3g/t rsonal use only 0m 50m OPEN OPEN Legend OPEN 100m +25 gm +5 gm OPEN 150m +10 gm <5 gm N 5
Slide 20: Are We Seeing The Start of Something Much Bigger?
Are We Seeing The Start of Something Much Bigger? What if the current Resource areas and regional prospects grow towards each other and at depth… rsonal use only N ARTEMIS MT HENRY BIRTHDAY GIFT SELENE PLUTUS (~1.5km) (~2km) (~2.5km) (~1.5km) (~1km) OPEN OPEN OPEN OPEN OPEN …Could this be the start
Slide 21: Delivering On Our Commitments
Delivering On Our Commitments What we said we would do: What we have said we will do next: ››› rsonal use only Deliver meaningful Resource growth Target further Resource growth. Next before the end of CY26 MRE update before the end of FY27 What we delivered: We’re already making progress: • Expanded
Slide 22: rsonal use only
rsonal use only REGISTERED OFFICE Level 2, 8 Richardson Street West Perth WA 6005 PHONE +61 (0) 8 6279 9425 info@sinclairgold.com sinclairgold.com ASX | SGC sinclairgold.com ASX | SGC EMAIL 22
Slide 23: Appendix: Mineral Resources as at July 2026
APPENDIX 1 Mineral Resources as at 31 July 2026 JORC (2012) Cut-off Grade Tonnes Grade Contained Gold Deposit Classification (g/t Au) (Mt) (g/t Au) (koz) rsonal use only Indicated 12.8 1.3 521 0.5 Mt Henry Inferred 9.2 1.2 364 Total Mt Henry 0.5 22.0 1.3 885 Indicated 20.1 1.1 710 0.5 Selene Inferre