St. Barbara Ltd. · ASX:SBM
St. Barbara — Mining Forum Americas 2026
32 slides from St. Barbara's conference presentation, Sep 28, 2026
Slide 1: Investor presentation – Mining Forum Americas
━━━━━━ Investor presentation – Mining Forum Americas September 2026
Slide 2: Disclaimer
2 Disclaimer This presentation has been prepared by St Barbara Limited (“Company”). The material contained in this presentation is summary information for general information purposes only. This presentation is not investment advice, nor is it an offer or invitation for subscription or purchase of,
Slide 3: Disclaimer
3 Disclaimer JORC Code It is a requirement of the ASX Listing Rules that the reporting of exploration results and mineral resources in Australia comply with the 2012 edition of the Joint Ore Reserves Committee’s Australasian Code for Reporting of Exploration Results, Mineral Resources and Ore Reserv
Slide 4: Corporate Overview
01 Corporate Overview
Slide 5: Corporate Summary
5 Corporate Summary Capital Structure Shareholders3 Shares on issue (ASX: SBM) 1,226.1M Performance rights 69.5M Institutional (60%) Share price1 A$0.82 Retail (32%) Other (8%) Market capitalisation1 A$1,043M Substantial Cash2 A$427M Shareholders - Paradice (6.9%) - Vanguard (5.7%) Debt Nil - Baker
Slide 6: Simberi Sale Transaction Summary
6 Simberi Sale Transaction Summary St Barbara to divest its remaining 40% interest in the New Simberi Gold Project to Lingbao Gold for A$453m cash PLUS royalties TOTAL CONSIDERATION TRANSACTION STRUCTURE ROYALTY PORTFOLIO A$453 million cash PLUS royalties 40% sale of New Simberi 2.75% & 1.5% NSR ► A
Slide 7: St Barbara management team
7 St Barbara management team Andrew Strelein Sara Prendergast Phil Stephenson Brett Ascott Kylie Panckhurst Roger Mustard David Cotterell Managing Director & CEO Chief Financial Officer Operations Advisor EGM Projects & General Counsel & EGM Exploration GM Business Development & Technical Support Co
Slide 8: Capital Management outlook
02 Capital Management outlook
Slide 9: Pro forma cash position
9 Pro forma cash position Cash build up (A$m) Key takeaways • St Barbara to receive A$410m in 453 880 upfront cash from Lingbao and A$43m capital reimbursement from expenditure on the New Simberi Gold Project from April until signing ‒ As at 31 August this was A$43m • Existing cash balance of A$427m
Slide 10: Fully Franked Dividends
10 Fully Franked Dividends • Following the transaction, St Fully franked dividend payment capacity (A$m) Barbara is considering full distribution of franking credits with total of A$221m to shareholders, consisting of 159 221 1) A$0.05 per share dividend declared on 28 August 2) Fully franked divide
Slide 11: Business overview
03 Business overview
Slide 12: Overview of Nova Scotia Projects
12 Overview of Nova Scotia Projects Integrated Operation with 15-Mile Processing Hub Project Nova Scotia Projects comprise: Touquoy Restart: 1 • To produce gold from the processing of existing stockpiles through the existing Touquoy processing plant 15-Mile Mine: 2a • Four simple low strip ratio ope
Slide 13: Nova Scotia management team and key personnel
13 Nova Scotia management team and key personnel Strong management team, with key personnel having years of experience in the region Andrew Taylor P. Eng Craig Hudson P. Eng Andrew Taylor P. Eng VP Operations Dustin O'Leary Adam Guignard Jennifer Adshade Melissa Nicholson Executive Vice President, V
Slide 14: Touquoy Restart project status
14 Project status Following the New Simberi sale, St Barbara will be a Nova Scotia focused developer, with near term production at Touquoy Restart while progressing development activities at the 15-Mile Processing Hub Touquoy Restart Touquoy Restart PFS completed Operating cash flow at US$4,000/oz a
Slide 15: Upcoming Milestones
15 Upcoming Milestones Following the New Simberi sale, St Barbara will be a Nova Scotia focused developer, with near term production at Touquoy Restart while progressing development activities at the 15-Mile Processing Hub Touquoy Restart Q4 CY26 Touquoy Restart production Restart of ore processing
Slide 16: Nova Scotia Projects Timeline
16 Nova Scotia Projects Timeline 15-Mile Processing Hub FID targeted by end of FY27, with production targeted to commence in FY30 FY 2027 FY 2028 FY 2029 FY 2030 Touquoy Restart Dec Jun Dec Jun Dec Jun Dec Jun Permitting, re-commissioning mill and construction of in-pit tailings Touquoy production 1
Slide 17: Updated PFS Highlights
17 Updated PFS Highlights Updated PFS delivers a larger Ore Reserve, longer mine life and materially enhanced economics versus the January 2026 study 1.44 Moz 13 years 1,377 koz 1,098 US$/oz 1,705 A$m 81.6 % ORE RESERVES +17% MINE LIFE LOM GOLD PRODUCED LOM AISC POST-TAX NPV5 POST-TAX IRR Bigger, lo
Slide 18: Nova Scotia Projects Production vs AISC
18 Nova Scotia Projects – Touquoy Restart and 15-Mile Hub Nova Scotia Nova Scotia Projects Projects Production Production vs AISC1 vs AISC 1 Growth Capital Growth and (US$m) Initial Capital 1 (US$m) 1 150 2,000 250 Initial Capital Expansion Capital 133 125 125 205 1,600 112 200 107 106 105 104 All-i
Slide 19: Touquoy Restart Project Overview
19 Touquoy Restart Project Overview Nova Scotia Projects 1 Project Details1 Key Metrics • Touquoy Restart Study results1 outlined a near-term, low capital and low-cost Processing life 1.1 years restart ‒ Initial capital of C$11.4m Total Mill Feed Tonnes 3.0 Mt ‒ Estimated gold production of 38koz ov
Slide 20: 15-Mile Processing Hub Project Overview
20 15-Mile Processing Hub Project Overview Nova Scotia Projects 2 3 4 Project Details1 Key Metrics • The Updated PFS leverages the PFS completed in January 2026 with updated Total waste mined 109.2 Mt resource models and associated changes to mine design, pit sequencing, stockpiles and other infrast
Slide 21: Nova Scotia Exploration – 15-Mile Processing Hub Exploration Pipeline
21 Nova Scotia Exploration – 15-Mile Processing Hub Exploration Pipeline 15-Mile Processing Hub Exploration Pipeline, Nova Scotia, Canada • 46 exploration targets within 75 km of the proposed 15-Mile Processing Hub Project ranging from: ‒ Stage A (conceptual target) ‒ Stage B1 (drill target) ‒ Stage
Slide 22: Nova Scotia Exploration - 15-Mile Processing Hub Exploration Pipeline
22 Nova Scotia Exploration - 15-Mile Processing Hub Exploration Pipeline 46 exploration targets within 75 km of the proposed 15-Mile Processing Hub Project
Slide 23: Nova Scotia Exploration Acceleration - Old Austen Mine Down-Plunge
23 Nova Scotia Exploration Acceleration - Old Austen Mine Down-Plunge Old Austen Mine Down-Plunge Prospect and along strike at the Mill Shaft West Prospect have been prioritised1 Note: 1. Refer to ASX announcement on 28 September 2026 titled “Nova Scotia Exploration Acceleration Update”
Slide 24: Appendix
A Appendix
Slide 25: Atlantic Gold Ore Reserves
25 Atlantic Gold Ore Reserves Proved Probable Total Tonnes Grade Ounces Tonnes Grade Ounces Tonnes Grade Ounces Deposit (Mt) (g/t Au) (000’s) (Mt) (g/t Au) (000’s) (Mt) (g/t Au) (000’s) 15-Mile Mine - - - 23.6 1.1 860 23.6 1.1 860 Old Mitchell Mine 8.1 1.1 290 1.6 1.0 50 9.6 1.1 340 Old Austen Mine
Slide 26: Atlantic Gold Mineral Resources
26 Atlantic Gold Mineral Resources Measured Indicated Inferred Total Tonnes Grade Ounces Tonnes Grade Ounces Tonnes Grade Ounces Tonnes Grade Ounces Deposit (Mt) (g/t Au) (000’s) (Mt) (g/t Au) (000’s) (Mt) (g/t Au) (000’s) (Mt) (g/t Au) (000’s) 15-Mile Mine - - - 30.2 1.2 1,190 5.5 1.1 200 35.7 1.2
Slide 27: Simberi Gold Ore Reserves
27 Simberi Gold Ore Reserves Proved Probable Total Tonnes Grade Ounces Tonnes Grade Ounces Tonnes Grade Ounces Deposit (Mt) (g/t Au) (000’s) (Mt) (g/t Au) (000’s) (Mt) (g/t Au) (000’s) Simberi Oxide 4.6 1.1 160 2.1 1.1 75 6.6 1.1 235 Simberi Sulphide 5.0 2.1 330 10.3 2.1 680 15.3 2.1 1,010 Simberi S
Slide 28: Simberi Gold Mineral Resources
28 Simberi Gold Mineral Resources Measured Indicated Inferred Total Tonnes Grade Ounces Tonnes Grade Ounces Tonnes Grade Ounces Tonnes Grade Ounces Deposit (Mt) (g/t Au) (000’s) (Mt) (g/t Au) (000’s) (Mt) (g/t Au) (000’s) (Mt) (g/t Au) (000’s) Simberi Oxide 6.5 1.0 210 7.5 1.2 290 1.5 0.9 45 15.4 1.
Slide 29: Simberi Silver Ore Reserves
29 Simberi Silver Ore Reserves Proved Probable Total Tonnes Grade Ounces Tonnes Grade Ounces Tonnes Grade Ounces Deposit (Mt) (g/t Ag) (000’s) (Mt) (g/t Ag) (000’s) (Mt) (g/t Ag) (000’s) Simberi Oxide 4.6 1.6 230 2.1 2.3 155 6.6 1.8 380 Simberi Sulphide 5.0 3.0 490 10.3 4.7 1,555 15.3 4.2 2,045 Tota
Slide 30: Simberi Silver Mineral Resources
30 Simberi Silver Mineral Resources Measured Indicated Inferred Total Tonnes Grade Ounces Tonnes Grade Ounces Tonnes Grade Ounces Tonnes Grade Ounces Deposit (Mt) (g/t Ag) (000’s) (Mt) (g/t Ag) (000’s) (Mt) (g/t Ag) (000’s) (Mt) (g/t Ag) (000’s) Simberi Oxide 6.5 2.2 460 7.5 4.1 985 1.5 2.4 115 15.4
Slide 31: Contact Information
31 Contact Information INVESTOR RELATIONS MEDIA RELATIONS David Cotterell Sodali & Co. General Manager Business Development & Investor Relations Paul Ryan T: +61 3 8660 1959 M: +61 409 296 511 M: +61 447 644 648 E: info@stbarbara.com.au
Slide 32: St Barbara
ie St Barbara