ST BARBARA LIMITED — Investor Presentation 2021

May 3, 2021

Presentation to Macquarie Australia Conference

Attached is a presentation by Mr Craig Jetson, Managing Director and CEO, to analysts and investors attending the Macquarie Australia Conference this week.

Investor Relations	Mr David Cotterell	Manager Investor Relations	+61 3 8660 1959	ASX: SBM
Media Relations	Mr Ben Wilson	GRACosway	+61 407 966 083	ADR: STBMY
Authorised by	Mr Craig Jetson	Managing Director & CEO
St Barbara LimitedACN 009 165 066	Level 10, 432 St Kilda Road, Melbourne VIC 3004Locked Bag 9, Collins Street East, Melbourne VIC 8003		T +61 3 8660 1900 F +61 3 8660 1999W www.stbarbara.com.au

Macquarie Australia Conference

5 May 2021

Craig Jetson Managing Director and Chief Executive Officer

1 / Macquarie Australia Conference, 4-6 May 2021

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.

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.

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.

Unless otherwise noted, information in this report that relates to Mineral Resources or Ore Reserves is extracted from the report titled 'Ore Reserves and Mineral Resources Statements 30 June 2020' released to the ASX on 24 August 2020. Full details of recent exploration results in ASX release 28 April 2021 'Q3 March FY21 Quarterly Report'.

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

Title slide picture: Atlantic Operations, Nova Scotia Published: 4 May 2021

Acknowledgement of Country

We at St Barbara acknowledge the Traditional Custodians of the land upon which we operate and recognise their unique cultural heritage, beliefs and connection to these lands, waters and communities.

We pay our respects to all members of these Indigenous communities, and to Elders past, present, and emerging. We also recognise the importance of continued protection and preservation of cultural, spiritual and educational practices.

Because we value treating all people with respect, we are committed to building successful and mutually beneficial relationships with the traditional custodians throughout our areas of operation.

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We are St Barbara

We're here to create value in everything we do, for our people, our communities and our shareholders.

Our vision is to be a brilliant, global mining company that grows sustainably and creates enduring, positive impacts.

As we operate our business and care for our people, we are guided by our five commitments and values-led culture. As St Barbara, doing the right thing is important to all of us.

A growing gold company with a global outlook

We are an experienced operator with gold mining operations in Australia, Canada and Papua New Guinea.

We are committed to growing our company sustainably and have a pipeline of growth projects that will provide employment, ongoing investment and benefits in each of the regions in which we operate.

We respect the environment, neutralise our impact and have set a target to be carbon neutral at Atlantic Gold by 2025 and at all operations by 2050.

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We are guided by our five commitments and our values-led culture

SAFETY ALWAYS

Target is Zero Harm TRIFR1 of 3.7 in Q3 Mar FY21

Embed CARE2 behaviours across all operations

93% of employees strongly felt COVID-19 is being managed well by the company

EMPOWERED PEOPLE DIVERSE TEAMS

We are the only mining company to be a WGEA3 Employer of Choice (2015-2021)

Inclusion in Bloomberg Gender-Equality Index One of 10 Australian companies of 380 worldwide included

Signatory to UN Women's Empowerment Principles

COMMUNITIES

Modern Slavery Statement released

Extending 'CARE' to our community across all aspects of wellbeing

Conducting site baseline compliance assessments

Five year research partnership with St Mary's University - Nova Scotia

RESPECTING THE ENVIRONMENT

Carbon neutral by 2050

Targeting 18% reduction in CO2 per ounce of gold produced by 2030

Improving education and awareness of environmental risks

GROWING SUSTAINABLY

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.

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

2. CARE stands for the following behaviours: C = Control; A = Action; R = Respect; E = Engage

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

Uplift 1: Deliver Building Brilliance in operations and extend mine life

0 – 18 months

Reduce cost while increasing throughput and recovery through Building Brilliance program

Extend mine life of Simberi Oxides and Touquoy through near-mine exploration and mine plan optimisation

18 months

Uplift 2: Execute brownfield expansion projects

Deliver Simberi Sulphide and Atlantic expansion projects on-time and within budget – 3 years

Develop surrounding Leonora province to fill the mill with St Barbara mined ore

Focussed on the key Value Unlocks:

• Leonora Province Plan: model reviews, together with pit optimisations and planned mill studies will be discussed in June quarter
• Simberi Sulphide Feasibility Study: the Board has approved pre-investment capital of US$13 M to further de-risk the project
• Atlantic Operations: the Environmental Impact Statement (EIS) for Fifteen Mile Stream was submitted in February, with revised EIS for Beaver Dam expected to be submitted in May

Our strategy to grow production +45% from 382 koz to 535-570 koz and reduce recurring cost by A$45 M

Recurring annual cost reduction

We have a pathway to grow our production profile through Uplift 1 and Uplift 2

Uplift 1 comes from Building Brilliance

• Maintain production at Atlantic and Simberi under declining grades
• Steadily increasing production at Gwalia

Uplift 2 comes from brownfield expansion projects at each asset

• Driving near-term expansions at Gwalia
• Assumes Atlantic's Beaver Dam production fully ramped up by FY23 – contingent on permitting

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Our capability focus

Execution discipline

Driving disciplined delivery on commitments across the business, and disciplined control and management of capital

Short interval control

Closed loop continuous improvement feedback between planning and execution

People leadership

Ensuring high performing leaders at all levels to drive results for St Barbara

Asset productivity

Improving our efficiency in utilising and maintaining our equipment

Technology and innovation

Leveraging digital analytics to drive next horizon of improvements

Continuous improvement capability

Embed our management operating system to drive performance

Our vision is to be a brilliant, global mining company that grows sustainably and creates enduring, positive impacts.

Building Brilliance FY21: the first step in our strategy Building Brilliance program is on-track to deliver significant performance uplifts at our Atlantic and Gwalia operations

Cumulative annualised cash contribution (A$M)

	Deliveryto date	FY21Target	FY22Target	FY23Target
Atlantic	6	10-12	15-25	20-30
Leonora	12	15-20	30-50	40-60
Simberi1	-	5-8	15-25	20-30
Total	18	30-40	60-100	80-120

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1. Simberi improvement targets remain unchanged, but execution timeline is currently under review.

Building Brilliance progress

		Key Performance Indicator	FY20	March FY21	% Change
		Mill throughput (tph)	331	349	5
We are validatingthe success of our	Atlantic	Mill availability (%)	90.9	98.2	8
Building Brillianceinitiatives by		Recovery (%)	92.0	94.5	3
monitoring KPIsthat drivebusiness		Development rate (m/day)	11.8	13.4	14
performanceimprovement	Leonora	Tonne-kilometres ('000/day)	33.7	40.4	20
		Total material moved (kt/day)1	2.1	2.6	24

Unlocking value

Province Plans and Brownfield expansion

Leonora Province Plan

• Work has focused on:
  • o Reviewing geological models, existing resource models and generating new resource models
  • o Pit optimisations have been completed for Jasper Flat, Jasper Hill, Trevor Bore, Tower Hill, Harbour Lights and Gwalia
  • o Mill scoping study to look at Gwalia plant expansion and/or new mill facilities to support expanded production from the Province.
• The promising results of this work will be reported in further detail in Q4, with the presentation of a Province Plan update

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Additional targets identified in upper levels of Gwalia

• A review of the upper part of the mine has identified a number of attractive targets for infill drilling including Old South Gwalia, Old West Lode and targets in south end of the mine above 585 mbs
• These areas will be drilled over the next 12 months
• Work commenced in January at the 1120 level on the Adam Decline. This area contains a number of previously unmined stopes, which will be mined over the next 6 – 12 months.
• The Adam Decline will also be used to access the Intermediates, which is planned to be mined over the next three to four years.

Leonora Province

Indicative timeline for development

		FY21	FY22	FY23	FY24
Gwalia	Feasibility & mine planning
Intermediates	Development & production
Gwalia	Feasibility & mine planning
Shallows	Development & production
Jasper Region	Scoping
(open pitdevelopment)	Drilling, feasibility & mine planning& permittingDevelopment & production
Tower Hill,
HarbourLights & MillExpansion	ScopingFeasibility & mine planning& permittingDevelopment & production
Surfacestockpiles	Feasibility & mine planning& permittingProduction		Variable grade

Expect to complete resource modeling in May

• Jasper Flat resource model is complete, with other nearby deposits requiring drilling prior to further work
• Pit optimisations underway at Tower Hill and Harbour Lights
• RC drilling planned for late May

Simberi Sulphide Feasibility Study Results

• Initial capital expenditure of US$170 M, including expansion capital, payback period of ~3 years
• Life of mine average sulphide gold production of ~160 koz per annum at AISC of US$896 per ounce
• Life of mine sustaining capital expenditure of US$120 M
• NPV of US$220 M (post-tax) at a real discount rate of 8% per annum
• IRR of ~40% (post-tax)
• Mine life of ~11 years (including oxides in FY22 and FY23)
• First ore ~2 years from permitting approval

Simberi Oxide Drill Targets

• An extensive RC and diamond drill program to target and define additional oxide mineralisation within the mine corridor was developed as part of the FY21 strategy
• New phase of drilling commenced in September 2020 and is ongoing
• Further resource definition drilling is being planned to compliment and convert unclassified and inferred mineralisation as a part of the overall drilling strategy
• Drilling results will be released in the June quarter FY21 on the completion of drill programs.

Simberi brownfield expansion will maintain production beyond FY24

Source: St Barbara SME interviews; expert interviews; PNG Environmental Act

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Simberi sulphides expansion is an extension of existing operations

• Utilises existing infrastructure on Simberi Island
• Maintains mining methodology; requires deepening of existing pits
• Requires an amendment to the existing mining lease to allow for processing of sulphides—new lease is not required
• Does not exceed current processing or deep-sea tailings pipe throughput

St Barbara is managing risks around the project timeline

• Engaging with government and stakeholders to discuss project
• Potentially bringing forward long lead item purchases
• Starting detailed design ahead of final permit approval
• Making conditional investment decisions under legislative uncertainty

Atlantic targeting Touquoy extension whilst progressing permitting and exploration

• EIS submitted for Fifteen Mile Stream in early February and Beaver Dam revised submission expected in May. Feasibility Study for Beaver Dam is on schedule for completion in Q4 FY21
• Continue to focus on adding near-mine production through optimising mine design and successful near-mine exploration

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Atlantic brownfield expansion projects are progressing to provide long-term stable production

Indicative timeline for Atlantic project development

Changes in Federal regulatory permitting have impacted project timelines

Beaver Dam

• Satellite pit (37 km from Touquoy mill)
• Minimal infrastructure utilising innovative solutions and technology
• Dedicated team to facilitate permitting

Fifteen Mile Stream

• EIS Submission in February 2021
• Requires EIS and provincial approvals

Cochrane Hill

Planning for the next steps of the project (land acquisition and permitting) is progressing

Deliver to Promise

• In FY21:
  • o Strategy has been set
  • o Company transformation launched and delivering to plan
  • o Clear execution plan to unlock value
  • o Production profile is improving
• Current priorities:
  • o Continue to implement the COVID-19 protocols across the Company and CARE for our people
  • o Maintain the strong March performance across all operations into Q4 and beyond – consistent and reliable operations
  • o Progress the Value Unlocks:
    • Detailed update on Leonora Province Plan
    • Pre-investment work on Simberi sulphide Project
    • Submit the revised EIS for Beaver Dam.
  • o Deliver Building Brilliance initiatives and achieve the FY21 target of A$30 to A$40 M in annualised cash contribution

Supplementary slides

Snapshot of St Barbara (SBM.ASX) – A global ASX 200 gold producer

Market	Market Capitalisation1	A$1.3B @ A$1.85/share
	Outstanding shares1	708 M
	Liquidity2	6 M/day (0.8%)
Financial	1H FY21 EPS3	A$0.05
	1H FY21 interim dividend	A$0.04
	Cash and term deposits4	A$100 M
	Debt5	A$102 M
Reserves /	6Ore Reserves (JORC)	6.0 Moz
Resources	6Mineral Resources	11.6 Moz
	/ Macquarie Australia Conference, 4-6 May 2021	1.As at close 30 April 20212.3 months to 30 April il2021 , Macquarie Capital3.Basic EPS for 1H FY214.As at 31 March 2021 cash balance comprises $100 M cash5.As at 31 March 2021 debt comprises C$100 M syndicated debt facility (repayment date July2022), excluding A$11 M lease labilities

St Barbara has a strong balance sheet supported by operational performance providing a platform for growth

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1. Refer corresponding Ore Reserves and Mineral Resources slides in Appendix as at 30 June 2020

Consolidated production, costs and guidance summary

Production SummaryConsolidated		Q3MarFY20	Q4JunFY20	YearFY20	Q1 SepFY21	Q2 DecFY21	Q3 MarFY21	Q3 YTDFY21	GuidanceFY21
St Barbara's financial year is 1	July to	Qtr to	Qtr to	Year to	Qtr to	Qtr to	Qtr to	9 months to	Year to
30 June		31 Mar 2020	30Jun 2020	30 June 2020	30 Sep 2020	31 Dec 2020	31Mar 2021	31Mar 2021	30 June 2021
Production
Atlantic	oz	26,032	29,209	106,663	27,226	26,693	20,606	74,525	100 to 110 koz(prev. 100 to 115 koz)
Gwalia	oz	39,684	51,297	171,156	22,625	42,198	42,716	107,539	175 koz(prev. 175 to 190 koz)
Simberi	oz	25,831	28,106	104,068	23,139	20,779	18,981	62,899	95 koz(prev. 95 to 105 koz)
Consolidated	oz	91,547	108,612	381,887	72,990	89,670	82,303	244,963	370 to 380 koz(prev. 370 to 410 koz)
Mined Grade									Milled grade
Atlantic	g/t	0.91	0.88	0.93	0.95	0.91	0.71	0.86	1.33
Gwalia	g/t	8.1	7.0	7.7	8.1	8.3	8.0	8.2	8.3
Simberi	g/t	1.05	1.07	1.06	1.19	1.49	1.33	1.32	1.25
Total Cash Operating Costs
Atlantic	A$/oz	773	675	713	669	736	903	758	n/a
Gwalia	A$/oz	1,117	1,041	1,071	1,560	1,037	1,044	1,150	n/a
Simberi	A$/oz	1,459	1,360	1,482	1,481	1817	2,032	1,759	n/a
Consolidated	A$/oz	1,116	1,025	1,083	1,203	1,128	1,237	1,187	n/a
All-In Sustaining Cost
Atlantic	A$/oz	951	988	928	1,008	999	1,128	1,035	958 to 1,0501(prev. 955 to 1,100)
Gwalia	A$/oz	1,556	1,389	1,485	2,592	1,573	1,555	1,780	1,590 to 1,630(prev.1,435 to 1,560)
Simberi	A$/oz	1,629	1,467	1,631	1,678	2,070	2,426	2,032	1,720 to 1,8102(prev. 1,665 to 1,840)
Consolidated	A$/oz	1,405	1,301	1,369	1,711	1,517	1,649	1,618	1,440to 1,520(prev. 1,360 to 1,510)

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1. C$920 to C$1,010 per ounce at AUD/CAD of 0.96 (previously C$880 to C$1,010 per ounce at AUD/CAD of 0.92)

2. US$1,325 to US$1,395 per ounce @ AUD/USD 0.77 (previously US$1,185 to US$1,305 per ounce @ AUD/USD 0.71

Guidance summary – exploration, capex, production profile

Exploration Guidance FY21	A$ M
Australia
Leonora Region	8 –9
Pinjin WA, Lake Wells WA, Back Creek NSW	10 –11
Tabar Island Group, Papua New Guinea	2 –3
Nova Scotia, Canada	10 –12
Consolidated	30 –35

FY21 Production Indicative Quarterly Guidance Profile

Capex	Guidance FY21
	Sustaining	Growth
	A$ M	A$ M
Leonora	70 –80	15-20(prev. 30 –32)
Simberi	12 –15	4 –5
Atlantic	15 –20	15 –20
Consolidated	97 –115	34 –45(prev. 49 –57)

Financial Year	Volumeounces	Price$/oz	Type	Delivery	Deliveryschedule	Announced
May 21 toDec 22	72,010	C$2,050	Europeancalloptions	May 2021 to Dec 2022	Monthly	24 Feb 2020

Exploration| Gwalia near mine and regional targets

A$8 - $9 M exploration budget for near mine and regional exploration around Gwalia for FY21

Exploration activity during the quarter focussed on:

• Gwalia Shallows
• Leonora Regional
  • o Further drilling planned for Jasper Hill, Jasper Flat, Falklands Trend, Ascension, Greenland and Trevor Bore

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Exploration | Nova Scotia

A$10 - $12 M exploration budgeted in Canada for FY21

Exploration activity during the quarter focussed on:

• Moose River Corridor (Caribou West, Caribou-Elk)
• Touquoy Camp (Higgins-Lawlers-Stillwater, HLS-Gap and HLS-Scheelite Closure)
• Northeast Regional (Cameron Dam)
• Southwest Regional (Pleasantfield B)

Exploration |Simberi Island

A$2 - $3 M exploration budget in PNG for FY21

Exploration activity during the quarter focussed on:

• 6 oxide targets on Simberi Island were drill tested with the aim of defining additional inferred and indicated resources
• Results highlight Pigibo North and Cell Tower contain oxide mineralisation (requiring further drilling). Andora and Monun Creek South contain sulphide mineralisation

Project pipeline

Equity Investments	Exploration	Feasibility	Permitting	Construction	Producing
Duketon Mining(12%)	Catalyst Metals2(Au, EJV with CYL)	Tower Hill	Beaver Dam		Gwalia Mine
Catalyst Metals(14%)	Aust Potash1(Au, EJV)	Gwalia Intermediates	Fifteen Mile Stream		Simberi Mine
Peel Mining(10%)	Pinjin	Gwalia Shallows			Touquoy Mine
	Greater Gwalia	Leonora Province
	Back Creek	Simberi Sulphides
	Simberi Island (oxides)	Cochrane Hill
	MooseRiver Corridor				EquityInvestments
	Regional NovaScotia				Australia
					Papua New Guinea

1. Earn-in and Joint Venture Agreement with Australian Potash announced 8 October 2018

2. Earn-in and Joint Venture Agreement with Catalyst Metals announced 25 November 2020

Ore Reserves Summary as at 30 June 2020

	Proved			Probable			Total
Project	Tonnes('000)	Gold(g/t)	Ounces('000)	Tonnes('000)	Gold(g/t)	Ounces('000)	Tonnes('000)	Gold(g/t)	Ounces('000)
Gwalia, (WA)	1,583	8.0	409	7,824	5.9	1,483	9,407	6.3	1,892
Tower Hill, (WA)	-	-	-	2,572	3.7	306	2,572	3.7	306
Simberi Oxide, (PNG)	1,702	1.3	73	6,035	1.1	220	7,737	1.2	293
Simberi Sulphide, (PNG)	1,386	2.6	114	21,253	2.4	1,651	22,638	2.4	1,765
Simberi Stockpiles, (PNG)	678	0.6	12	-	-	-	678	0.6	12
Atlantic Gold, (NS)	21,370	1.2	796	23,700	1.1	851	45,070	1.1	1,647
Atlantic Gold Stockpiles, (NS)	5,450	0.5	89	-	-	-	5,450	0.5	89
Total All Projects	32,168	1.4	1,493	61,384	2.3	4,511	93,552	2.0	6,005

Notes

1. Ore Reserves are based on a gold price of: Gwalia (AU$1,600/oz), Tower Hill (AU$1,250/oz), Simberi and Atlantic Gold (US$1,300/oz)

2. Cut-off Grades Gwalia (4.7 g/t Au), Tower Hill (2.8 g/t Au), Simberi Oxide (0.5 g/t Au), Atlantic Gold (0.3 g/t Au – 0.5 g/t Au)

3. Mineral Resources are reported inclusive of Ore Reserves

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1. Data is rounded to thousands of tonnes and thousands of ounces. Discrepancies in totals may occur due to rounding Full details are contained in the ASX release dated 24 August 2020 'Ore Reserves and Mineral Resources Statements 30 June 2020' available at www.stbarbara.com.au

Mineral Resources Summary at 30 June 2020

	Measured			Indicated			Inferred			Total
Project	Tonnes('000)	Gold(g/t)	Ounces('000)	Tonnes('000)	Gold(g/t)	Ounces('000)	Tonnes('000)	Gold(g/t)	Ounces('000)	Tonnes('000)	Gold(g/t)	Ounces('000)
Gwalia, (WA)	3,991	6.4	819	17,403	6.0	3,353	1,201	5.5	214	22,595	6.0	4,386
Tower Hill, (WA)	-	-	-	4,604	3.9	574	489	3.3	51	5,093	3.8	625
Simberi Oxide, (PNG)	2,197	1.2	90	8,062	1.1	280	8,542	0.9	260	18,801	1.0	630
Simberi Sulphide, (PNG)	3,119	1.5	168	52,642	1.6	2,772	16,699	1.4	747	72,459	1.6	3,687
Atlantic Gold, (NS)	24,281	1.1	868	32,399	1.1	1,102	7,203	1.1	256	63,883	1.1	2,227
Total All Projects	33,587	1.8	1,945	115,110	2.2	8,081	34,134	1.4	1,529	182,832	2.0	11,555

Notes

1. Mineral Resources are reported inclusive of Ore Reserves

2. Cut-off Grades Gwalia (2.5 g/t Au), Tower Hill (2.5 g/t Au), Simberi Oxide (0.4 g/t Au), Simberi Transitional and Sulphide (0.6 g/t Au), Atlantic Gold (0.3 g/t Au)

3. Atlantic and Simberi Mineral Resources are reported constrained by a US$1,800/oz pit shell

4. Data is rounded to thousands of tonnes and thousands of ounces. Discrepancies in totals may occur due to rounding Full details are contained in the ASX release dated 24 August 2020 'Ore Reserves and Mineral Resources Statements 30 June 2020' available at www.stbarbara.com.au

Competent persons statement

Exploration Results

The information in this presentation that relates to Exploration Results is based on information compiled by Dr Roger Mustard, who is a Member of The Australasian Institute of Mining and Metallurgy. Dr Mustard is a full-time employee of St Barbara and has sufficient experience relevant to the style of mineralisation and type of deposit under consideration and to the activity which he is undertaking to qualify as a Competent Person as defined in the 2012 Edition of the 'Australasian Code for Reporting of Exploration Results, Mineral Resources and Ore Reserves'. Dr Mustard consents to the inclusion in the report of the matters based on his information in the form and context in which it appears.

Mineral Resource and Ore Reserve Estimates

The information in this presentation that relates to Mineral Resources or Ore Reserves for Gwalia, Tower Hill, Simberi and Atlantic Gold is extracted from the report titled 'Ore Reserves and Mineral Resources Statements 30 June 2020' released to the Australian Securities Exchange (ASX) on 24 August 2020. The report is available to view at <stbarbara.com.au>. The Company confirms that it is not aware of any new information or data that materially affects the estimates of Mineral Resources or Ore Reserves and that all material assumptions and technical parameters underpinning the estimates in the original ASX announcement continue to apply and have not materially changed. The Company confirms that the form and context in which the Competent Person's findings are presented have not been materially modified from the original ASX announcement.

Full details are contained in the ASX release dated 24 August 2020 'Ore Reserves and Mineral Resources Statements 30 June 2020' available at <stbarbara.com.au>.

Non-IFRS measures

We supplement our financial information reporting determined under International Financial Reporting Standards (IFRS) with certain non-IFRS financial measures, including cash operating costs. We believe that these measures provide meaningful information to assist management, investors and analysts in understanding our financial results and assessing our prospects for future performance.

All-In Sustaining Cost(AISC)	All-InSustainingCostisbasedonCashOperatingCosts,andaddsitemsrelevanttosustainingproduction.Itincludessome,butnotall,ofthecomponentsidentifiedinWorldGoldCouncil'sGuidanceNoteonNon-GAAPMetrics-All-InSustainingCostsandAll-InCosts(June2013).Refermostrecentquarterlyreportavailableatstbarbara.com.auforexample.
Cash contribution	Cashflowfromoperationsbeforefinancecosts,referreconciliationofcashmovementinthemostrecentquarterlyreportavailableatstbarbara.com.au
Cash operating costs	CalculatedaccordingtocommonminingindustrypracticeusingTheGoldInstitute(USA)ProductionCostStandard(1999revision).Refermostrecentquarterlyreportavailableatstbarbara.com.auforexample

Investor Relations enquiries

Garth Campbell-Cowan Chief Financial Officer

David Cotterell

Manager Investor Relations

T: +61 3 8660 1900 E: info@stbarbara.com.au

Scheduled ASX Announcements

28 July 2021 Q4 June 2021 Quarterly Report

26 August 2021 FY21 Financial Report