Presentation on Q4 June FY20 Quarterly Report and audio webcast - PDF document

ASX Release / 29 July 2020 Presentation on Q4 June FY20 Quarterly Report and audio webcast Craig Jetson, Managing Director & CEO, will brief analysts and institutional investors on the Q4 June FY20 Quarterly Report at 11:00 am Australian Eastern Standard Time (UTC + 10 hours) on Wednesday 29 July 2020. Analysts and institutional investors Analysts and institutional investors can register for the briefing at https://s1.c-conf.com/DiamondPass/10008254-invite.html Shareholders A live audio webcast of the briefing will be available on St Barbara’s website at stbarbara.com.au/investors/webcast/ or by clicking here. The audio webcast is ‘listen only’ and does not enable questions. The audio webcast will subsequently be made available on the website. Investor Relations Mr David Cotterell Manager Investor Relations +61 3 8660 1900 Media Relations Mr Ben Wilson GRACosway +61 407 966 083 ASX: SBM Authorised by Rowan Cole Company Secretary +61 3 8660 1900 ADR: STBMY St Barbara Limited Level 10, 432 St Kilda Road, Melbourne VIC 3004 T +61 3 8660 1900 F +61 3 8660 1999 W www.stbarbara.com.au ACN 009 165 066 Locked Bag 9, Collins Street East, Melbourne VIC 8003

Craig Jetson, Managing Director & CEO / 29 July 2020 ASX:SBM Q4 June FY20 Quarterly Presentation

Disclaimer This presentation has been prepared by St Barbara Limited (“Company”). The material contained in this presentation is for information purposes only. This presentation is not an offer or invitation for subscription or purchase of, or a recommendation in relation to, securities in the Company and neither this presentation nor anything contained in it shall form the basis of any contract or commitment. This presentation may contain forward ‐ looking statements that are subject to risk factors associated with exploring for, developing, mining, processing and sale of gold. Forward ‐ looking statements include those containing such words as anticipate, estimates, forecasts, should, will, expects, plans or similar expressions. Such forward ‐ looking statements are not guarantees of future performance and involve known and unknown risks, uncertainties, assumptions and other important factors, many of which are beyond the control of the Company, and which could cause actual results or trends to differ materially from those expressed in this presentation. Actual results may vary from the information in this presentation. The Company does not make, and this presentation should not be relied upon as, any representation or warranty as to the accuracy, or reasonableness, of such statements or assumptions. Investors are cautioned not to place undue reliance on such statements. This presentation has been prepared by the Company based on information available to it, including information from third parties, and has not been independently verified. No representation or warranty, express or implied, is made as to the fairness, accuracy or completeness of the information or opinions contained in this presentation. The Company estimates its reserves and resources in accordance with the Australasian Code for Reporting of Identified Mineral Resources and Ore Reserves 2012 Edition (“JORC Code”), which governs such disclosures by companies listed on the Australian Securities Exchange. Financial figures are in Australian dollars unless otherwise noted. Financial year is 1 July to 30 June. Q1 Sep FY20 = quarter to 30 Sep 2019 Q3 Mar FY20 = quarter to 31 Mar 2020 Q2 Dec FY20 = quarter to 31 Dec 2019 Q4 Jun FY20 = quarter to 30 June 2020 Title Slide Picture: Leonora Operations, Western Australia 2 / Q4 June FY20 Quarterly Presentation

Contents COVID ‐ 19 Projects • • Highlights Exploration & Growth • • Safety Conclusion • • Operations Appendices • • 3 / Q4 June FY20 Quarterly Presentation

St Barbara’s response to COVID ‐ 19 St Barbara’s priority during the COVID ‐ 19 pandemic is the health and wellbeing of its people, its partners and suppliers, and the communities in which it operates No COVID ‐ 19 cases detected at sites, however risks remain • SBM COVID ‐ 19 Management Framework and vigilance is being maintained St Barbara continues to maintain and evolve the COVID ‐ 19 • management framework outlined in the March quarterly report During the quarter, flights to and from PNG recommenced , • allowing us to change over the expat management team and resume normal rosters of national staff Exploration fieldwork recommenced during the quarter, following • extensive consultation, planning and risk management prior to restarting Mental Health awareness webinars for employees on psychological health, managing ambiguity, effective • sleep practices and managing isolation and quarantine Across all St Barbara operations, there is a strong commitment to supporting communities during the • pandemic: Atlantic Gold donating iPads to aged care homes for seniors and essential PPE to healthcare workers o Simberi donated rapid diagnostic test kits to the New Ireland Provincial Government o St Barbara donated to the Chamber of Minerals and Energy (CME) WA Community Fund o 4 / Q4 June FY20 Quarterly Presentation

Highlights Q4 June FY20 • 109 koz at AISC 1 of A$1,301/oz (Q3: 92 koz at A$1,405/oz) Operational • Consolidated full year production in line with full year guidance performance • Strongest quarterly production since Q4 FY18 • Operational cash contribution 1 of A$126 M (Q3: A$86 M) Financial • A$1,207/oz cash contribution 1 (Q3: A$871/oz) metrics • Cash balance increased A$85 M, after growth capex of A$11 M, income tax payments of A$6 M and exploration expenditure of A$4 M Capital • A$405 M cash at bank and term deposits 2 management • A$316 M debt 3 (with A$200 M to be repaid at the end of July 2020) • Simberi sulphide feasibility study progressing Growth • Gwalia to capitalise on increased ventilation once last shaft completed • Reviewing optimal sequencing of the Atlantic Gold projects 1. Non IFRS measure, refer corresponding slide in Appendix 5 / Q4 June FY20 Quarterly Presentation 2. Financial information unaudited. Cash balance comprises $177 M cash, $228 M term deposits 3. Comprises of A$200 M and C$100 M syndicated debt facility (repayment date July 2022)

Focus on safety St Barbara LTIFR 2 in comparison with Total Recordable Injury Frequency Rate 1 Western Australian Mining benchmarks 3 5.0 5.0 4.2 1.9 1.9 3.2 3.0 2.1 2.1 1.2 0.4 St Barbara WA Gold WA Metal FY16 FY17 FY18 FY19 Q1 Q2 Q3 Q4 FY20 FY20 FY20 FY20 Q4 FY20 • The Total Recordable Injury Frequency Rate • Corresponding LTIFR of 0.4 well below WA (TRIFR, 12 month moving average) at 3.0 at industry average the end of Q4 June FY20 1. Total Recordable Injury Frequency Rate (12 month avg.), total recordable injuries per million hours worked. 2. LTIFR = Lost Time Injury Frequency Rate (12 month avg.), the number of lost time injuries per million hours worked 6 / Q4 June FY20 Quarterly Presentation 3. Most recent statistics from www.dmp.wa.gov.au/Safety/Safety ‐ statistics ‐ 16198.aspx

Areas of focus FY21 • Productivity improvements • Renewed operating model Operational • Cost reductions opportunities • Enhanced technical expertise Agenda • Progress the Environmental Impact Statement (EIS) for each Atlantic Gold development project • Optimise sequencing of these projects • Complete the final vent shaft and deliver increased ventilation Leonora • Optimise development, maximise ore extraction and production Operations • Drive identified business improvement opportunities Simberi • Progress sulphide project feasibility study Operations • Operations team continues to deliver the current oxide mine plan 7 / Q4 June FY20 Quarterly Presentation

Consolidated Q4 June FY20 Results Q4 FY20 AISC 1 AISC (A$/oz) • Consolidated A$1,301/oz 1,421 1,405 1,364 1,301 (Q3: A$1,405/oz 2 ) 1,175 FY20 average $1,369/oz • Gwalia A$1,389/oz (Q3: A$1,556/oz) • Simberi A$1,467/oz (Q3: A$1,629/oz) Gold Production (koz) • Atlantic A$988/oz (Q3: A$951/oz) 109 109 94 92 88 Q4 FY20 Production 23 29 22 29 26 • Consolidated 109 koz (Q3: 92 koz) 36 28 23 26 27 • Gwalia 51 koz (Q3: 40 koz) 51 • Simberi 28 koz (Q3: 26 koz) 50 42 40 38 • Atlantic 29 koz (Q3: 26 koz) 2 FY19 FY20 FY20 FY20 FY20 Q4 Jun Q1 Sep Q2 Dec Q3 Mar Q4 Jun Gwalia Simberi Atlantic Total Figures displayed to nearest thousand ounces. Reported ounces in table in Appendix. 1. Non IFRS measure, refer corresponding slide in Appendix 2. Atlantic Gold was acquired on 19 July 2019. Atlantic Gold quarterly production prior to this date provided for comparison. Reported Q1 Sep FY20 production and FY20 guidance includes 4,362 ounces produced by Atlantic Gold prior to acquisition. 8 / Q4 June FY20 Quarterly Presentation Consolidated Q1 AISC inc SBM attributable production = A$1,445/oz.