St Barbara : Briefing Book Q3 FY22

Briefing Book

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 the 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. To the maximum extent permitted by law, neither the Company, their directors, employees or agents, advisers, nor any other person accepts any liability, including, without limitation, any liability arising from fault or negligence on the part of any of them or any other person, for any loss arising from the use of this presentation or its contents or otherwise arising in connection with it.

Non-IFRS financial information: We supplement our financial information reporting determined under International Financial Reporting Standards ("IFRS") with certain non-IFRS financial measures, including cash operating costs. Details of these are set out in the Supplement.

Financial figures are in Australian dollars unless otherwise noted. Financial year is 1 July to 30 June. This presentation is not audited.

Mineral Resources and Ore Reserves reporting

Any information in this presentation that relates to St Barbara Mineral Resources or Ore Reserves estimates (other than Bardoc estimates) has been extracted from the ASX announcement released by St Barbara titled "Ore Reserves and Mineral Resources Statements 31 December 2021" dated 18 February 2022 which is available to view onwww.stbarbara.com.au andwww.asx.com.au.

Any information in this presentation that relates to Bardoc Gold Project Mineral Resource and Ore Reserve estimates has been extracted from the ASX announcement released by St Barbara titled "Q3 March FY22 Quarterly Report" dated 28 April 2022 which is available to view onwww.stbarbara.com.au

St Barbara confirms that it is not aware of any new information or data that materially affects the information included in the announcements referred to above (Original Announcements) and that all material assumptions and technical parameters underpinning the Mineral Resources and Ore Reserves estimates in the Original Announcements continue to apply and have not materially changed. St Barbara confirms that the form and context in which the Competent Person's findings are presented have not been materially modified from the Original Announcements.

Full details of recent exploration results are in ASX release titled "Q3 March FY22 Quarterly Report" dated 28 April 2022 which is available to view onwww.stbarbara.com.au.

Australian Securities Exchange (ASX) Listing code "SBM"

American Depositary Receipts (ADR OTC code "STBMY") through BNY Mellon,www.adrbnymellon.com/dr_profile.jsp?cusip=852278100

Published 28 April 2022

A growing gold company with a global outlook

Three operations with pathway to greater than 10 years of operating life

Our sustainability framework underpins our business

We are taking action across our sustainability commitments

Target is Zero Harm

TRIFR1 - 3.9 in FY21 and trending downwards since

Embedded CARE behaviours across all operations

A workplace safe from injury, harassment, bias, discrimination and harm

Gender Safety audits

We are the only mining company to be a WGEA2 Employer of Choice (2015-2022)

Included in Bloomberg Gender Equality Index (2021 & 2022) - 100% score for sexual harassment policies

Continue to meet and exceed diversity objectives

Delivering on action plan to address risks of Modern Slavery

Extend 'CARE' to community: mental health, domestic violence, community wellbeing pillars incl. vaccine programs

Supporting next generation of Indigenous leaders through consultation and education

• 1. Total Recordable Injury Frequency Rate (12 month average, total recordable injuries per million hours worked)

• 2. Australian Workplace Gender Equality Agency (www.wgea.gov.au)

Carbon neutral by 2050 and by 2025 at Atlantic Operations

Reporting on Scope 3 emissions and new data on waste management

Operations do not compete with agricultural or domestic needs for water

Growing our business sustainably, where it makes sense, and with strong governance practices, means we can add value for everyone: our shareholders, our people and our communities