HARMONY GOLD MINING COMPANY LIMITED

Technical Report Summary of the

Mineral Resources and Mineral Reserves

for

Moab Khotsong Operations

Free State Province, South Africa

Effective Date: 30 June 2022

Final Report Date: 30 July 2022

Technical Report Summary for

Moab Khotsong Operations, Free State Province, South Africa

IMPORTANT NOTICE

This Technical Report Summary has been prepared for Harmony Gold Mining Company Limitedin support of disclosure and filing requirements with the United States Securities and Exchange Commission’s (SEC) under Regulation S-K 1300; 229.601(b)(96). The quality of information, estimates, and conclusions contained in this Technical Report Summary apply as of the effective date of this report. Subsequent events that may have occurred since that date may have resulted in material changes to such information, estimates and conclusions in this summary. No other party is entitled to rely on this report beyond its intended use and any reliance by a third party on this report is done so at that party’s own risk.

Effective Date: 30 June 2022

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Technical Report Summary for

Moab Khotsong Operations, Free State Province, South Africa

Signature Page

/s/ Leanne Brenda Freese

___________________________________

Ms Leanne Brenda Freese

B.Sc. (Hons) Geol

SACNASP (400294/14)

Ore Reserve Manager, Moab Khotsong Operations

Harmony Gold Mining Company Limited

Effective Date: 30 June 2022

Final Report Date: 30 July 2022

Effective Date: 30 June 2022

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Technical Report Summary for

Moab Khotsong Operations, Free State Province, South Africa

List of Contents

1	Executive Summary			1
2	Introduction			7
3	Property Description and Location			8
	3.1	Mineral Tenure		8
	3.2	Property Permitting Requirements		8
4	Accessibility, Climate, Local Resources, Infrastructure and Physiography			10
	4.1	Accessibility		10
	4.2	Physiography and Climate		10
	4.3	Local Resources and Infrastructure		10
5	History			11
	5.1	Historical Ownership and Development		11
	5.2	Historical Exploration		11
	5.3	Previous Mineral Resource and Mineral Reserve Estimates		12
	5.4	Past Production		12
6	Geological Setting, Mineralisation and Deposit			14
	6.1	Regional Geology		14
	6.2	Local Geology		14
	6.3	Property Geology		19
		6.3.1	Vaal Reef Lithology	19
		6.3.2	C Reef Lithology	19
		6.3.3	Structure	19
	6.4	Mineralisation		19
		6.4.1	Vaal Reef Mineralisation	21
		6.4.2	C Reef Mineralisation	21
		6.4.3	Alteration	21
	6.5	Deposit Type		21
	6.6	Commentary on Geological Setting, Mineralisation and Deposit		21
7	Exploration			22
	7.1	Geophysical Seismic Survey		22
	7.2	Topographic Surveys		22
	7.3	Underground Mapping		22
	7.4	Channel Sampling Methods and Sample Quality		22
	7.5	Surface Drilling Campaigns, Procedures, Sampling, Recoveries and Results		24
		7.5.1	Drilling Methods	24
		7.5.2	Collar and Downhole Surveys	24
		7.5.3	Logging Procedure	24
		7.5.4	Drilling Results	24
		7.5.5	Core Recovery	29
		7.5.6	Sample Length and True Thickness	29
	7.6	Underground Drilling Campaigns, Procedures, Sampling, Recoveries and Results		29
		7.6.1	Drilling Methods	30
		7.6.2	Collar and Downhole Surveys	30
		7.6.3	Logging Procedures	30
		7.6.4	Drilling Results	30
		7.6.5	Core Recovery	31
		7.6.6	Sample Length and True Thickness	31
	7.7	Hydrogeological Data		31
	7.8	Geotechnical Data		31
	7.9	Commentary on Exploration		31
8	Sample Preparation, Analyses and Security			33

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	8.1	Sampling Method and Approach		33
		8.1.1	Channel Samples	33
		8.1.2	Core Samples	33
	8.2	Density Determination		34
	8.3	Sample Security		34
	8.4	Sample Storage		34
	8.5	Laboratories Used		34
	8.6	Laboratory Sample Preparation		34
	8.7	Assaying Methods and Analytical Procedures		35
	8.8	Sampling and Assay Quality Control (“QC”) Procedures and Quality Assurance (“QA”)		35
		8.8.1	Field QAQC	35
		8.8.2	Laboratory QAQC	36
		8.8.3	QAQC results	36
	8.9	Comment on Sample Preparation, Analyses and Security		37
9	Data verification			38
	9.1	Databases		38
	9.2	Data Verification Procedures		38
	9.3	Limitations to the Data Verification		38
	9.4	Comment on Data Verification		38
10	Mineral Processing and Metallurgical Testing			39
11	Mineral Resource Estimate			40
	11.1	Geological Database		40
	11.2	Global Statistics		40
	11.3	Geological Interpretation		41
		11.3.1	Vaal Reef Geozones and EDs	41
		11.3.2	C Reef Geozones and EDs	42
	11.4	Structural Wireframe Model		42
	11.5	Compositing		42
	11.6	Capping		42
	11.7	Variography		46
	11.8	Mineral Resource Estimation Methods		46
	11.9	Estimation Parameters		46
	11.10	Relative Density and Tonnage Calculation		48
	11.11	Model Validation		48
	11.12	Mineral Resource Evaluation		49
	11.13	Mineral Resource Classification and Uncertainties		49
	11.14	Mineral Resource Estimate		50
	11.15	Audits and Reviews		51
	11.16	Mineral Resource Reconciliation		51
	11.17	Comment on Mineral Resource Estimates		54
12	Mineral Reserve Estimate			55
	12.1	Key Assumptions, Parameters, and Methods used to Estimate the Mineral Reserve		55
	12.2	Modifying Factors		55
	12.3	Mineral Reserve Estimate		56
	12.4	Mineral Reserve Reconciliation		57
	12.5	Commentary on Mineral Reserve Estimate		57
13	Mining Method			59
	13.1	Mining Operations		59
		13.1.1	Scattered Mining	59
		13.1.2	Shaft Pillar Extraction	62
	13.2	Mine Design		62

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		13.2.1	Mine Design Parameters	62
	13.3	Mine Plan Development and Life of Mine (“LOM”) Schedule		63
	13.4	Geotechnical and Geohydrological Considerations		63
	13.5	Dilution and Grade Control		65
	13.6	Ore transport		65
	13.7	Mining Equipment and Machinery		65
	13.8	Mining Personnel		66
	13.9	Commentary on Mining Method		66
14	Processing and Recovery Methods			67
	14.1	Mineral Processing Description		67
	14.2	Plant Throughput, Design, Equipment Characteristics and Specifications		67
	14.3	Energy, Water, Process Material and Personnel Requirements		70
		14.3.1	Energy	70
		14.3.2	Water	70
		14.3.3	Process Material	70
		14.3.4	Personnel	70
	14.4	Commentary on the Processing and Recovery Methods		70
15	Infrastructure			72
	15.1	Surface Infrastructure		72
		15.1.1	Ore and Waste Rock Storage Facilities	72
		15.1.2	Tailings Storage Facilities	72
		15.1.3	Power and Electrical	76
		15.1.4	Water Usage	76
	15.2	Underground Infrastructure and Shafts		76
		15.2.1	Great Noligwa	76
		15.2.2	Moab Khotsong	76
		15.2.3	Zaaiplaats	76
	15.3	Commentary on Infrastructure		78
16	Market Studies			79
	16.1	Market Overview		79
		16.1.1	New Mine Production	79
		16.1.2	Recycling	79
	16.2	Global Consumption and Demand		79
		16.2.1	Jewellery	79
		16.2.2	Investment	79
		16.2.3	Currency	80
	16.3	Gold Price		80
		16.3.1	Historical Gold Price	80
		16.3.2	Forecast Gold Price	80
		16.3.3	Harmony Group Gold Hedging Policy	80
	16.4	Commentary on Market Studies		83
	16.5	Material Contracts		83
17	Environmental Studies, Permitting and Plans, Negotiations, or Agreements with Local Individuals or Groups			84
	17.1	Results of Environmental Studies		84
	17.2	Waste and Tailings Disposal, Monitoring & Water Management		84
	17.3	Permitting and Licences		85
	17.4	Local Stakeholder Plans and Agreements		86
	17.5	Mine Closure Plans		86
	17.6	Status of Issues Related to Environmental Compliance, Permitting, and Local Individuals Or Groups		87

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	17.7	Local Procurement and Hiring		87
	17.8	Commentary on Environmental Studies, Permitting and Plans, Negotiations, or Agreements with Local Individuals or Groups		87
18	Capital and Operating Costs			89
	18.1	Capital Costs		89
	18.2	Operating Costs		89
	18.3	Comment on Capital and Operating Costs		89
19	Economic Analysis			91
	19.1	Key Economic Assumptions and Parameters		91
		19.1.1	Metallurgical Recoveries	91
		19.1.2	Gold Price	91
		19.1.3	Exchange Rate	91
		19.1.4	Royalties	92
		19.1.5	Capital Expenditure	92
		19.1.6	Operating Expenditure	92
		19.1.7	Working Capital	93
		19.1.8	Taxes	93
		19.1.9	Closure Cost and Salvage Value	93
		19.1.10	Summary	93
	19.2	Economic Analysis		93
	19.3	Sensitivity Analysis		96
20	Adjacent properties			98
21	Other Relevant Data and Information			99
22	Interpretation and Conclusions			100
23	Recommendations			102
	23.1	Zaaiplaats Exploration Drilling		102
	23.2	Mineral Resource Growth Opportunities		102
	23.3	Zaaiplaats Design and Scheduling		102
	23.4	Investigation of Inventory Areas		102
24	References			103
25	Reliance on Information Provided by the Registrant			104

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List of Figures

Figure 3-1: Location of Moab Khotsong	9
Figure 3-2: Legal Tenure of Moab Khotsong	9
Figure 5-1: Graph of Past Production – Tonnes and Gold Grade	13
Figure 5-2: Graph of Past Metal Production	13
Figure 6-1: Regional Geology of the Witwatersrand Basin	15
Figure 6-2: Stratigraphy of the CRG in the Witwatersrand Supergroup	16
Figure 6-3: Stratigraphic Column of the Free State Goldfield	17
Figure 6-4: Structure Plan for Moab Khotsong	18
Figure 6-5: Top Mine and Middle Mine Cross Section and Plan	20
Figure 6-6: Zaaiplaats Cross Section and Plan	20
Figure 7-1: Location of Channel Samples Collected from the Vaal Reef to Date	23
Figure 7-2: Location of Channel Samples Collected from the C Reef to Date	23
Figure 7-3: Location of Surface and Underground Drill Holes Intersecting the Vaal Reef	25
Figure 7-4: Location of Surface and Underground Drill Holes Intersecting the C Reef	26
Figure 11-1: Vaal Reef Estimation Domains	44
Figure 11-2: C-Reef Estimation Domains	45
Figure 11-3: Distribution of the Vaal Reef Gold Values at Moab Khotsong	47
Figure 11-4: Distribution of the C Reef Gold Values at Moab Khotsong	48
Figure 11-5: Location of Moab Khotsong Vaal Reef Mineral Resources and Mineral Reserves	52
Figure 11-6: Location of Moab Khotsong C Reef Mineral Resources and Mineral Reserves	53
Figure 12-1: Graph of Moab Khotsong Mineral Reserve Reconciliation	58
Figure 13-1: Plan Showing the Mining Sequence and LOM Extents at Moab Khotsong	60
Figure 13-2: Plan view of a Typical Footwall Crosscut at Moab Khotsong	61
Figure 13-3: Cross Section of the Development Blueprint at Moab Khotsong	61
Figure 13-4: Graph of Moab Khotsong LOM Plan - Ore Milled	64
Figure 13-5: Graph of Moab Khotsong LOM Plan – Gold Produced (kg)	64
Figure 14-1: Schematic Flow Diagram of the Metallurgical Process	68
Figure 14-2: Graph of Historical Recovery (18 month actual)	71
Figure 15-1: Moab Khotsong Surface Mine Layout and Infrastructure	73
Figure 15-2: Great Noligwa Mine Surface Infrastructure	74
Figure 15-3: Moab Khotsong Mine Surface Infrastructure	75
Figure 15-4: Great Noligwa and Moab Khotsong’s Mine Shaft and Underground Infrastructure	77
Figure 16-1: Graph of Annual Gold Price History – ZAR/kg	82
Figure 16-2: Graph of Consensus View of Forecast Gold Price	82
Figure 19-1: Graph of Consensus ZAR : USD Exchange Rate Forecast	92

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List of Tables

Table 1-1: Summary of the Moab Khotsong Mineral Resources as at 30 June 2022 (Exclusive of Mineral Reserves) 1-8	3
Table 1-2: Summary of the Moab Khotsong Mineral Reserves as at 30 June 2022 1-5	4
Table 1-3: Summary of LOM Capital Cost Estimate for Moab Khotsong	5
Table 1-4: Summary of Operating Cost Estimates for Moab Khotsong	5
Table 1-5: Status of Environmental Permits and Licences	6
Table 2-1: QP Qualification, Section responsibilities and Personal Inspections	7
Table 3-1: Summary of Mining Rights for Moab Khotsong	8
Table 5-1: Summary of Historical Ownership Changes and Activities at Moab Khotsong	11
Table 5-2: Summary of Previous Moab Khotsong Mineral Resources as at 30 June 2021 (Exclusive of Mineral Reserves)	12
Table 5-3: Summary of the Previous Moab Khotsong Mineral Reserves as at 30 June 2021	12
Table 7-1: Summary of Surface Drill holes Intersecting the Vaal Reef and C Reef (pre 1980 – 2021)	27
Table 7-2: Summary of Surface and Underground Drilling by Company	29
Table 7-3: Drill hole Acceptance Criteria	29
Table 8-1: Field QAQC Samples	35
Table 8-2: Summary of Analytical Quality Control Data	36
Table 8-3: Summary of Moab Khotsong CRM Performance	37
Table 11-1: Summary of the Gold Assay Descriptive Statistics	41
Table 11-2: Capping Values by Reef and Geozone	43
Table 11-3: Harmony Economic Assumptions (30 June 2022)	49
Table 11-4: Geological Losses Applied by Mineral Resource Category	50
Table 11-5: Summary of Moab Khotsong Mineral Resource Estimate as at 30 June 2022 (Exclusive of Mineral Reserves) 1-8	50
Table 12-1: Moab Khotsong Mineral Reserves Modifying Factors (30 June 2022)	56
Table 12-2: Summary Moab Khotsong Mineral Reserve Estimate (30 June 2022) 1 - 5	56
Table 13-1: Key Mine Design Parameters	63
Table 14-1: Key Equipment Specifications at Great Noligwa Gold Plant	69
Table 14-2: Design Throughput Versus Actual Throughput at Great Noligwa Gold Plant	69
Table 14-3: Leaching Process Material and Properties	69
Table 14-4: Consumables	70
Table 16-1: Material Contracts	83
Table 17-1: Status of Environmental Permits and Licences	86
Table 18-1: Summary of LOM Capital Cost Estimate for Moab Khotsong	90
Table 18-2: Summary of Operating Cost Estimates for Moab Khotsong	90
Table 19-1: Conversions Used in Gold Price Calculations	91
Table 19-2: ZAR:USD Exchange Rate Performance (June 2019 – June 2022)	92
Table 19-3: Key Economic Assumptions and Parameters	93
Table 19-4: Moab Khotsong Cash Flow	94
Table 19-5: Gold Price Sensitivity Analysis @9% Discount rate	96
Table 19-6: Total Operating Cost Sensitivity Analysis @ 9% Discount rate	96
Table 19-7: Gold price, Operating Costs, and Production Variation Sensitivity Analysis @ 9% Discount rate	97
Table 25-1: Other Technical Experts	104

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Technical Report Summary for

Moab Khotsong Operations, Free State Province, South Africa

Units of Measure and Abbreviations

Unit / Abbreviation	Description or Definition
°C	degrees Celsius
µm	Micrometres
2D	Two-dimensional
3D	Three-dimensional
AE	Abnormal expenditure
Ag	Silver
AngloGold	AngloGold Limited
Au	Gold
Ave.	Average
BMD	Below mine datum
Bn	Billion
c.	Approximately
CIP	Carbon-In-Pulp
cm	Centimetre
cmg/t	Centimetre-grams per tonne
CODM	Chief Operating Decision-Maker
Company	Harmony Gold Mining Company Limited
COP	Code of Practice
CRG	Central Rand Group
CRM	Certified Reference Material
CV	Coefficient of Variation
DMRE	Department of Mineral Resources and Energy
DWS	Department of Water and Sanitation
EIA	Environmental Impact Assessment
EMPR	Environmental Management Programme
EMS	Environmental Management System
ESG	Environmental Social and Governance
ETF’s	Exchange Traded Funds
EW-SX	Electro-wining solvent extraction
FX	Foreign Exchange rate
g	Gram
g/t	Grams per metric tonne
GHG	Greenhouse gas
GISTM	Global Industry Standard on Tailings Management
Harmony	Harmony Gold Mining Company Limited
HPE	Hydro-powered
kg	Kilogram
km	Kilometre
km2	Square kilometre
kWh	Kilowatt-hour
LDL	Lower detection limit
LIB	Long Inclined Borehole
LOM	Life of Mine
Ltd	Limited
m	Metre
M	Million
m3/hr	Cubic metres per hour
masl	Metres above sea level
MCC	Mining Charter Compliance

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MCF	Mine Call Factor
Mintek	South Africa's national mineral research organisation
Moz	Million troy ounces
MPRDA	Mineral and Petroleum Resources Development Act, 28 of 2002
Mt	Million tonnes
Mtpa	Million tonnes per annum
Mtpm	Million tonnes per month
NEMA	National Environmental Management Act, 107 of 1998
No.	Number
NPV	Net present value
oz	Troy ounce
PSD	Particle Size Distribution
Pty	Proprietary
QA/QC	Quality Assurance/Quality Control
QP	Qualified Person
ROM	Run-of-Mine
SACNASP	South African Council for Natural Scientific Professions
SAMREC	The South African Code for the Reporting of Exploration Results, Mineral Resources and Mineral Reserves
SEC	Securities and Exchange Commission
SGM	Sequential Grid Mining
SLP	Social Labour Plan
STD	Standard Deviation
t	Metric tonne
t/m3	Tonne per cubic metre
TRS	Technical Report Summary
TSF	Tailings Storage Facility
USD	United States Dollars
USD/oz	United States Dollar per troy ounce
WRG	West Rand Group
WUL(s)	Water Use Licence(s)
ZAR	South African Rand
ZAR/kg	South African Rand per kilogram

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Technical Report Summary for

Moab Khotsong Operations, Free State Province, South Africa

Glossary of Terms

Term	Definition
Co-kriging	A method that is used to predict the value of the point at unobserved locations by sample points that are known to be spatially interconnected by adding other variables that have a correlation with the main variable or can also be used to predict 2 or more variables simultaneously.
Cut-off grade	Cut-off grade is the grade (i.e. the concentration of metal or mineral in rock) that determines the destination of the material during mining. For purposes of establishing “prospects of economic extraction,” the cut-off grade is the grade that distinguishes material deemed to have no economic value (it will not be mined in underground mining or if mined in surface mining, its destination will be the waste dump) from material deemed to have economic value (its ultimate destination during mining will be a processing facility). Other terms used in similar fashion as cut-off grade include net smelter return, pay limit, and break-even stripping ratio.
Dilution	Unmineralized rock that is by necessity, removed along with ore during the mining process that effectively lowers the overall grade of the ore.
Head grade	The average grade of ore fed into the mill.
Economically viable	Economically viable, when used in the context of Mineral Reserve determination, means that the qualified person has determined, using a discounted cash flow analysis, or has otherwise analytically determined, that extraction of the Mineral Reserve is economically viable under reasonable investment and market assumptions.
Indicated Mineral Resource	Indicated Mineral Resource is that part of a Mineral Resource for which quantity and grade or quality are estimated on the basis of adequate geological evidence and sampling. The level of geological certainty associated with an Indicated Mineral Resource is sufficient to allow a qualified person to apply modifying factors in sufficient detail to support mine planning and evaluation of the economic viability of the deposit. Because an Indicated Mineral Resource has a lower level of confidence than the level of confidence of a Measured Mineral Resource, an Indicated Mineral Resource may only be converted to a probable Mineral Reserve.
Inferred Mineral Resource	Inferred Mineral Resource is that part of a Mineral Resource for which quantity and grade or quality are estimated on the basis of limited geological evidence and sampling. The level of geological uncertainty associated with an Inferred Mineral Resource is too high to apply relevant technical and economic factors likely to influence the prospects of economic extraction in a manner useful for evaluation of economic viability. Because an Inferred Mineral Resource has the lowest level of geological confidence of all Mineral Resources, which prevents the application of the modifying factors in a manner useful for evaluation of economic viability, an Inferred Mineral Resource may not be considered when assessing the economic viability of a mining project, and may not be converted to a Mineral Reserve.
Kriging	A method of interpolation based on Gaussian process governed by prior covariances. It uses a limited set of sampled data points to estimate the value of a variable over a continuous spatial field
Mine Call Factor	The ratio, expressed as a percentage, of the total quantity of recovered and unrecovered mineral product after processing with the amount estimated in the ore based on sampling.
Measured Mineral Resource	Measured Mineral Resource is that part of a Mineral Resource for which quantity and grade or quality are estimated on the basis of conclusive geological evidence and sampling. The level of geological certainty associated with a Measured Mineral Resource is sufficient to allow a qualified person to apply modifying factors, as defined in this section, in sufficient detail to support detailed mine planning and final evaluation of the economic viability of the deposit. Because a Measured Mineral Resource has a higher level of confidence than the level of confidence of either an Indicated Mineral Resource or an Inferred Mineral Resource, a Measured Mineral Resource may be converted to a Proven Mineral Reserve or to a Probable Mineral Reserve.
Mineral Reserve	Mineral Reserve is an estimate of tonnage and grade or quality of Indicated and Measured Mineral Resources that, in the opinion of the qualified person, can be the basis of an economically viable project. More specifically, it is the economically mineable part of a Measured or Indicated Mineral Resource, which includes diluting materials and allowances for losses that may occur when the material is mined or extracted.
Mineral Resource	Mineral Resource is a concentration or occurrence of material of economic interest in or on the Earth’s crust in such form, grade or quality, and quantity that there are reasonable prospects for economic extraction. A Mineral Resource is a reasonable estimate of mineralization, taking into account relevant factors such as cut-off grade, likely mining dimensions, location or continuity, that, with the assumed and justifiable technical and economic conditions, is likely to, in whole or in part, become economically extractable. It is not merely an inventory of all mineralization drilled or sampled.

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Modifying Factors	Modifying factors are the factors that a qualified person must apply to Indicated and Measured Mineral Resources and then evaluate in order to establish the economic viability of Mineral Reserves. A qualified person must apply and evaluate modifying factors to convert Measured and Indicated Mineral Resources to Proven and Probable Mineral Reserves. These factors include but are not restricted to; mining; processing; metallurgical; infrastructure; economic; marketing; legal; environmental compliance; plans, negotiations, or agreements with local individuals or groups; and governmental factors. The number, type and specific characteristics of the modifying factors applied will necessarily be a function of and depend upon the mineral, mine, property, or project.
Pre-Feasibility Study	A pre-feasibility study (or preliminary feasibility study) is a comprehensive study of a range of options for the technical and economic viability of a mineral project that has advanced to a stage where a qualified person has determined (in the case of underground mining) a preferred mining method, or (in the case of surface mining) a pit configuration, and in all cases has determined an effective method of mineral processing and an effective plan to sell the product.
	(1) A pre-feasibility study includes a financial analysis based on reasonable assumptions, based on appropriate testing, about the modifying factors and the evaluation of any other relevant factors that are sufficient for a qualified person to determine if all or part of the Indicated and Measured Mineral Resources may be converted to Mineral Reserves at the time of reporting. The financial analysis must have the level of detail necessary to demonstrate, at the time of reporting, that extraction is economically viable.
	(2) A pre-feasibility study is less comprehensive and results in a lower confidence level than a feasibility study. A pre-feasibility study is more comprehensive and results in a higher confidence level than an initial assessment.
Probable Mineral Reserve	Probable Mineral Reserve is the economically mineable part of an Indicated and, in some cases, a Measured Mineral Resource.
Proven Mineral Reserve	Proven Mineral Reserve is the economically mineable part of a Measured Mineral Resource and can only result from conversion of a Measured Mineral Resource.
Qualified Person	A qualified person is:
	(1) A mineral industry professional with at least five years of relevant experience in the type of mineralization and type of deposit under consideration and in the specific type of activity that person is undertaking on behalf of the registrant; and
	(2) An eligible member or licensee in good standing of a recognized professional organization at the time the technical report is prepared. For an organization to be a recognized professional organization, it must:
	(i) Be either:
	(A) An organization recognized within the mining industry as a reputable professional association; or
	(B) A board authorized by U.S. federal, state or foreign statute to regulate professionals in the mining, geoscience or related field;
	(ii) Admit eligible members primarily on the basis of their academic qualifications and experience;
	(iii) Establish and require compliance with professional standards of competence and ethics;
	(iv) Require or encourage continuing professional development;
	(v) Have and apply disciplinary powers, including the power to suspend or expel a member regardless of where the member practices or resides; and
	(vi) Provide a public list of members in good standing.
Tailings	Finely ground rock of low residual value from which valuable minerals have been extracted is discarded and stored in a designed dam facility.
Tailings Freeboard	The vertical height between the beached tailings against the embankment crest and the crest itself.

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Technical Report Summary for

Moab Khotsong Operations, Free State Province, South Africa

1Executive Summary

Section 229.601(b)(96) (1)

The Qualified Person(s) (“QP”) of Harmony Gold Mining Company Limited (“Harmony” or the “Company”) have prepared this Technical Report Summary (“TRS”) to disclose the Mineral Resource and Mineral Reserve estimates for the Company’s Moab Khotsong Operations (“Moab Khotsong”). The TRS has been prepared in accordance with the U.S. Securities and Exchange Commission (“SEC”) property disclosure regulations, S-K 1300, with an effective date as at 30 June 2022. No material changes have occurred between the effective date and the date of signature of this TRS.

Property Description

Moab Khotsong comprises the underground and surface assets associated with two mines, namely Moab Khotsong Mine and Great Noligwa Mine, which Harmony acquired from AngloGold Ashanti Limited (“AngloGold”) in 2018. Both are deep level gold mines, operating at depths of between 2km and 3km. They are situated directly south of the Vaal River approximately 10km east of the town of Orkney, in the Free State Province of South Africa. The primary reef mined is the Vaal Reef, with additional production being sourced from the C Reef.

Moab Khotsong is sub-divided by major faults into three distinct geographical mining areas. These are referred to as Top Mine, accessed through Great Noligwa shaft, Middle Mine, accessed through Moab Khotsong shaft, and Zaaiplaats accessed through a decline system off the base of the Moab Khotsong shaft.

Harmony’s Moab Khotsong mineral tenure comprises two mining rights covering approximately 10,991 hectares (“ha”), namely:

•NW30/5/1/2/2/15 MR valid from 12 September 2007 to 11 September 2037; and

•NW30/5/1/1/2/16 MR valid from 20 August 2008 to 19 August 2038.

The two mining rights have been successfully converted, executed and registered as new order mining rights at the Mineral and Petroleum Resources Titles Office. These rights include the extraction of gold, silver, nickel and uranium. Both mining rights are valid and remain effective unless cancelled or suspended. Under the Mineral and Petroleum Resources Development Act, 28 of 2002 (“MPRDA”), Harmony is entitled to apply to renew the mining right on its expiry. There are no known legal proceedings that may influence the right to mine.

Ownership

Moab Khotsong is wholly owned by Harmony, including the associated mineral rights. Harmony acquired Moab Khotsong from AngloGold in March 2018.

Geology and Mineralisation

Moab Khotsong is situated within the Klerksdorp Goldfield on the western margin of the Witwatersrand Basin of South Africa, one of the most prominent gold provinces in the world. The major gold bearing conglomerate reefs are mostly confined to the Central Rand Group (“CRG”) of the Witwatersrand Supergroup.

The CRG is up to 2,100m thick in the Vaal River area and the general orientation of the Witwatersrand Supergroup succession in this goldfield is interpreted as southwest-trending and southeast dipping. A series of northeast-trending faults including the Buffelsdoorn, the Kromdraai, the Buffels East and the Jersey Faults, is a key feature of the Klerksdorp Goldfield and the key structural features at Moab Khotsong are related to this series of faults.

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Technical Report Summary for

Moab Khotsong Operations, Free State Province, South Africa

Moab Khotsong exploits gold mineralisation occurring in the Vaal Reef. This reef is stratigraphically located near the top of the Johannesburg Sub-group, within the CRG. The Vaal Reef ranges in depth at Moab Khotsong from 1,500m below mine datum (“BMD”) to 3,400m BMD. Gold mineralisation also occurs in the stratigraphically higher C-Reef, which lies approximately 225m above the Vaal Reef. However, the C Reef typically contributes less than 5% to the mining production.

The Vaal Reef consists of a thin basal conglomerate and a thicker upper sequence of conglomerates, which are separated by barren orthoquartzite. The C Reef is an approximately 10cm thick conglomerate, which commonly has a 5mm to 20mm thick carbon seam at the base.

The gold mineralisation at Moab Khotsong succeeded a period of deep burial, fracturing, and alteration. The gold and other elements are believed to have been precipitated through the reaction of hydrothermal fluids at high temperatures along the reef horizons.

Current Status of Exploration, Development and Operation

Great Noligwa Mine was originally developed by the Anglo American Corporation Limited (“AAC”) and known as Vaal River No.8 Shaft. Work on Great Noligwa was initiated in 1968, and the mine produced its first gold in 1972. Great Noligwa Mine reached its peak of mining production in the late 1990s, producing up to 1,000koz of gold per annum. Production has reduced over time and the operation is nearing the end of its life, with current operations concentrated on the mining of the shaft pillar.

The Moab Khotsong Mine was developed by AngloGold and is the youngest of South Africa’s deep-level gold mines. The Middle Mine at Moab Khotsong came into production in 2003, and as such, the Moab Khotsong Mine can be considered a well-established operation producing at steady state.

Zaaiplaats project received Board approval in October 2021. Development has already started, and Mineral Reserves were stated as from June 2021.

The Vaal and C reefs at Moab Khotsong have been extensively explored. Harmony continues to conduct underground production and exploration drilling and channel (chip) sampling. Sampling of underground drill hole intersections, as well as sampling of established stopes on the reef horizon, enable the geological model to be updated monthly as new data is generated. Harmony has budgeted ZAR46.5M for infill exploration drilling, which will be used to improve the level of confidence in the structural model.

Mineral Resource Estimate

The Mineral Resources for both the Vaal Reef and C Reef at Moab Khotsong were estimated by the Harmony QP in Datamine™ Studio RM software. The QP created block models based on a verified electronic database containing surface drill hole data, as well as underground drilling, mapping, and chip sampling data obtained until December 2021. Gold values were estimated using ordinary and simple macro kriging interpolation methods.

The Mineral Resources were originally prepared, classified and reported according to the South African Code for the Reporting of Exploration Results, Mineral Resources and Mineral Reserves, 2016 edition (“SAMREC, 2016”). For the purposes of this TRS, the Mineral Resources have been classified in accordance with § 229.1302(d)(1)(iii)(A) (Item 1302(d)(1)(iii)(A) of Regulation S-K). The Mineral Resource estimate, as at 30 June 2021, exclusive of the reported Mineral Reserves is summarised in Table 1-1.

The QP compiling the Mineral Resource estimates is Ms LB Freese, who is the Ore Reserve Manager, and who is a Harmony employee.

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Table 1-1: Summary of the Moab Khotsong Mineral Resources as at 30 June 2022 (Exclusive of Mineral Reserves) 1-8

METRIC
Mineral Resource Category	Tonnes (Mt)	Gold Grade (g/t)	Gold Content (kg)
Measured	2.331	17.64	41,110
Indicated	3.476	16.96	58,962
Total / Ave. Measured + Indicated	5.807	17.23	100,072
Inferred	2.555	19.09	48,762
IMPERIAL
Mineral Resource Category	Tonnes (Mt)	Gold Grade (oz/t)	Gold Content (Moz)
Measured	2.569	0.514	1.322
Indicated	3.832	0.495	1.896
Total / Ave. Measured + Indicated	6.401	0.503	3.217
Inferred	2.816	0.557	1.568
Notes:
1. The Mineral Resources were originally prepared, classified and reported according to SAMREC, 2016. For the purposes of this TRS, the Mineral Resources have been classified in accordance with § 229.1302(d)(1)(iii)(A) (Item 1302(d)(1)(iii)(A) of Regulation S-K). The Qualified Person responsible for the estimate is LB. Freese, who is the Ore Reserve Manager, and who is a Harmony employee.
2. The Mineral Resource tonnes are reported as in-situ with reasonable prospects for economic extraction.
3. Tonne measurements are reported in metric units. Gold grades are reported in grams per metric tonne (“g/t”).
4. The Mineral Resources are reported using a cut-off value of 1,500cmg/t determined at a 90% profit guidance, and a gold price of USD1,723/oz.
5. Tonnes are reported as million metric tonnes (“Mt”) rounded to two decimal places. Gold values are rounded to zero decimal places.
6. Mineral Resources are exclusive of Mineral Reserves. Mineral Resources are not Mineral Reserves and do not necessarily demonstrate economic viability.
7. Rounding as required by reporting guidelines may result in apparent summation differences between metric tonnes (“t”), gold value and metal content.
8. The Mineral Resource estimate is for Harmony’s 100% interest.

Mineral Reserve Estimate

The Mineral Reserves were originally prepared, classified and reported according to SAMREC, 2016. For the purposes of this TRS, the Mineral Reserves have been classified in accordance with § 229.1302(d)(1)(iii)(A) (Item 1302(d)(1)(iii)(A) of Regulation S-K).

Mineral Reserves are derived from the Mineral Resources, a detailed business plan and the operational mine planning processes for Middle Mine, Top Mine and Zaaiplaats. Mine planning utilises and takes into consideration historical technical parameters achieved. In addition, Mineral Resource conversion to Mineral Reserves considers Modifying Factors, dilution, ore losses, minimum mining widths, planned mine call and plant recovery factors. In the opinion of the QP, given that Moab Khotsong is an established operation, the Modifying Factors informing the Mineral Reserve estimates would at minimum, satisfy the confidence levels of a Pre-Feasibility Study.

The conversion of the Zaaiplaats Mineral Resources to Mineral Reserves is based upon the 2021 Feasibility Study prepared by Harmony.

The declared Mineral Reserves are depleted to generate the Moab Khotsong cash flows. The economic analysis of the cash flows displays positive results and are deemed both technically and economically achievable.

The reported Mineral Reserve estimate as at 30 June 2022 is summarised in Table 1-2.

The QP compiling the Mineral Reserve estimates is Ms LB Freese, who is the Ore Reserve Manager, and who is a Harmony employee.

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Table 1-2: Summary of the Moab Khotsong Mineral Reserves as at 30 June 2022 1-5

METRIC
Mineral Reserve Category	Tonnes (Mt)	Gold Grade (g/t)	Gold Content (kg)
Proved	2.690	7.48	20,117
Probable	11.984	8.78	105,250
Total (Proved + Probable)	14.675	8.54	125,367
IMPERIAL
Mineral Reserve Category	Milled Tonnes (Mt)	Gold Grade (oz/t)	Gold Content (Moz)
Proved	2.966	0.218	0.647
Probable	13.211	0.256	3.384
Total (Proved + Probable)	16.176	0.249	4.031
Notes:
1. The Mineral Reserves were originally prepared, classified and reported according to SAMREC, 2016. For the purposes of this TRS, the Mineral Reserves have been classified in accordance with § 229.1302(d)(1)(iii)(A) (Item 1302(d)(1)(iii)(A) of Regulation S-K). The Qualified Person responsible for the estimate is LB. Freese, who is the Ore Reserve Manager, and who is a Harmony employee.
2. Tonnes, grade, and gold content (oz) are declared as net delivered to the mills.
3. Gold content (kg) is recovered gold content after taking into consideration the Modifying Factors.
4. Recovered gold (kg) is based on a conversion factor of 32.151oz/kg.
5. Mineral Reserves are reported using a cut-off grade of 1,800cmg/t determined using a gold price of USD1,546/oz gold.

Capital and Operating Cost Estimates

The capital cost estimates for the LOM plans for Great Noligwa Mine and Moab Khotsong Mine are determined at a corporate level, using the business plan as the basis. The capital cost estimate for Zaaiplaats has been developed as part of the Feasibility Study and is considered to be of industry-standard Feasibility Study level of confidence. The capital costs are those associated with major equipment outside the main operating sections which is termed abnormal expenditure (“AE”), infrastructure development, ongoing capital development (“OCD”) and Mining Charter Compliance (“MCC”). A summary of the capital cost estimates for Moab Khotsong, including Zaaiplaats, are shown in

Table 1-3.

The operating cost estimates for Moab Khotsong and Zaaiplaats are categorised into direct and total costs. A summary of the operating cost estimates for Moab Khotsong, including Zaaiplaats, are shown in Table 1-4.

The capital and operating costs are reported in ZAR terms and on a real basis. The economic analysis, including the capital and operating costs are reported for the period comprising financial year (“FY”) July - June. Both the capital and operating estimates are accounted for in the economic analysis of Moab Khotsong, and the results of the economic analysis for Zaaiplaats demonstrate positive returns.

Permitting Requirements

All relevant mining, and environmental permits and licences are in place and are valid and are shown in Table 1-5. All permits are audited regularly for compliance and no material risks to the operations have been identified.

Based on the environmental studies undertaken to date, there are no sensitive areas or any other environmental factors, including interested and affected parties and/or studies that could have a material effect on the likelihood of eventual economic extraction. Harmony is committed to maintaining good relationships with regulatory authorities, industries, communities, business partners and surrounding stakeholders.

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Technical Report Summary for

Moab Khotsong Operations, Free State Province, South Africa

Table 1-3: Summary of LOM Capital Cost Estimate for Moab Khotsong

Capital Cost Element (ZAR'000s)	Total LOM (FY2023 - FY2044)
OCD	5,281,402
AE	1,499,375
Shaft Projects	629,060
Major Projects	6,123,556
MCC	891,420
Total	14,424,813
Notes: Rounding of figures may result in minor computational discrepancies.

Table 1-4: Summary of Operating Cost Estimates for Moab Khotsong

Operating Cost Element (ZAR'000)	Total LOM (FY2023 - FY2044)
Wages - Payroll 1	12,779,501
Wages - Payroll 2	17,327,615
Stores and Materials	9,062,269
Electric Power and Water	20,837,430
Outside Contractors	3,335,620
Other	3,894,316
Direct Costs	67,236,750
Pumping Allocation	1,997,796
Refining Charge	215,127
Uranium Allocation	-431,531
Hostel Cost	-106,834
Backfill Cost	469,533
Plant Treatment Cost	6,467,227
Working Cost Transfer to Capital	-1,055,745
Care and Maintenance	879,243
Re-allocated costs	8,434,817
Mine Overheads Re-allocated	4,475,335
Total	80,146,902

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Moab Khotsong Operations, Free State Province, South Africa

Table 1-5: Status of Environmental Permits and Licences

Permit Holder	Permit / Licence	Reference No.	Issued By	Date Granted	Validity
Harmony	EMPR	NW30/5/1/2/2/15&16MR	DMRE	08-Aug-2019	LOM
Harmony	Atmospheric Emission Licence	AEL/FS/MKO- HGM/14/10/2019	DFFE	13-Mar-2019	30-Jan-26
Harmony	Waste Management Licence	NWP/DK2/WM/ 2018/04/01/02	DARD	21-Jan-2021	LOM
Harmony	Water Use Licence	08/C24B/AGJ/9799	DWS	12-Nov-2020	12-Nov-40

Conclusions

Under the assumptions in this TRS, Moab Khotsong Mine, including Zaaiplaats, show positive cash flows over the life of mine (“LOM”) which supports the Mineral Resource and Mineral Reserve estimates. The mine plan is achievable under the set of assumptions and parameters used.

Recommendations

Exploration drilling has been recommended. The programme has been designed for Mineral Resource replacement to fill the production gap between the current mine and the production build up at the future Zaaiplaats project, and also to refine the geological model for the Zaaiplaats block. Drill targets have been identified and the exploration plan is focusing on improving the geological confidence within the northeastern corner of Lower Mine. Above 101 Level drilling is targeting potential ‘blue sky’ Vaal Reef blocks caught up within the Jersey fault zone. Below 101 Level drilling will upgrade structural confidence of the larger Lower Mine block. Some of the drill holes budgeted for will also be utilized for geotechnical analysis.

Zaaiplaats design and scheduling will be adjusted as new orebody information becomes available through continuous exploration.

Resource growth opportunities have been identified below 76 level. Brown fields exploration is required to confirm Vaal Reef blocks that are situated below 76 Level that can potentially be accessed.

Opportunities in blocks that have been moved into inventory continues to be investigated, especially adjacent areas to current mining with synergies.

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Technical Report Summary for

Moab Khotsong Operations, Free State Province, South Africa

2Introduction

Section 229.601(b)(96) (2) (i-v)

This TRS on Moab Khotsong has been prepared for the registrant, Harmony. The TRS has been prepared in accordance with the U.S. SEC Disclosure by Registrants Engaged in Mining Operations (disclosure regulations S-K 1300). It has been prepared to meet the requirements of Section 229.601(b)96 - Technical Report Summary. The purpose of this TRS is to provide open and transparent disclosure of all material, exploration activities, Mineral Resource and Mineral Reserve information to enable the investor to understand Target which forms part of Harmony’s activities.

This TRS has been prepared from the following sources of information:

•Competent Persons Report (Ore Reserve Statement for period ended 30 June 2022, Technical Report for Moab Khotsong Operations) (prepared by Ms LB Freese) dated 30 June 2022;

•the 2022 and 2023 Harmony Corporate Business Plan; and

•published Harmony 2022 Mineral Resources and Mineral Reserves Report as at 30 June 2022 (“HAR-RR22”).

The TRS was prepared by Qualified Persons (“QPs) employed on a full-time basis by the registrant. The QPs qualifications, areas of responsibility and personal inspection of the property are summarised in Table 2-1.

Table 2-1: QP Qualification, Section responsibilities and Personal Inspections

Qualified Person	Professional Organisation	Qualification	TRS Section Responsibility	Personal Insp.
LB Freese	SACNASP, GSSA	B.Sc. Hons (Geol), GDE (MRM)	All sections	Full time
VH Esterhuizen	SACNASP	BSc Hons (Geol)	Mineral Resource	Full Time

This TRS is the first filing of such a document with the SEC and has an effective date as at 30 June 2022. No material changes have occurred between the effective date and the date of signature.

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Technical Report Summary for

Moab Khotsong Operations, Free State Province, South Africa

3Property Description and Location

Section 229.601(b)(96) (3) (i-vii)

Moab Khotsong comprises two operating underground deep level gold mines, namely the Moab Khotsong Mine and the Great Noligwa Mine. Moab Khotsong is sub-divided by major faults into three distinct geographical mining areas. These mining areas are referred to as Top Mine, accessed through Great Noligwa and Moab Khotsong shafts, Middle Mine, accessed through Moab Khotsong shaft, and Zaaiplaats, a Board approved project to be accessed through a decline system from Moab Khotsong.

Production at Great Noligwa commenced in 1972, whilst Middle Mine came into production in 2003. Zaaiplaats, located to the southwest of Middle Mine, received Board approval in September 2021. Development has already started, and Mineral reserves were issued as from June 2021.

At longitude 26°48'03.3"E and latitude 26°59'12.7"S, Moab Khotsong is approximately 180km from Johannesburg. The mine is located approximately 10km east of Orkney and directly south of the Vaal River, which forms the border between the North West and Free State provinces. The location of Moab Khotsong and the associated mines are shown in Figure 3-1.

3.1Mineral Tenure

South African Mining Law is regulated by the MPRDA which is the predominant piece of legislation dealing with acquisitions or rights to conduct reconnaissance, prospecting and mining. There are several other pieces of legislation which deal with such ancillary issues such as royalties (the Mineral and Petroleum Resources Royalty Act, 2008), title registration (the Mining Titles Registration Act, 1967), and health and safety (the Mine Health and Safety Act, 1996).

Harmony holds two mining rights, which have been successfully converted, executed and registered as new order mining rights at the Mineral and Petroleum Resources Titles Office. These rights cover a total combined area of 10,991.13ha for the mining of gold, silver, nickel and uranium. Both mining rights are valid and remain effective unless cancelled or suspended. Under the MPRDA, Harmony is entitled to apply to review the mining right on its expiry. Harmony’s mining rights pertaining to Moab Khotsong are presented in Table 3-1 and their location is shown in Figure 3-2.

Table 3-1: Summary of Mining Rights for Moab Khotsong

Licence Holder	Licence Type	Reference No.	Effective Date	Expiry Date	Area (ha)
Harmony	MR	NW(15) MR	12-Sep-2007	11-Sep-2037	1,372.47
Harmony	MR	NW(16) MR	20-Aug-2008	19-Aug-2038	9,618.66
Total						10,991.13

There are no known legal proceedings (incl. violations or fines) against the Company which threatens its mineral rights, tenure, or operations.

3.2Property Permitting Requirements

All relevant underground mining and surface right permits, and any other permit related to the work conducted on the property have been obtained and are valid.

Harmony has access to all the properties it requires to conduct its current mining activities. The surface right areas are sufficient in size and nature to accommodate the required surface infrastructure to facilitate current and planned mining and processing operations.

Harmony monitors complaints and litigation against the Company as part of its risk management systems, policies, and procedures. There is no material litigation (including violations or fines) against the Company as at the date of this report which threatens its property permitting. The Company is also not aware any land claims or other legal proceedings that may have an influence on the rights to mine the minerals.

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Technical Report Summary for

Moab Khotsong Operations, Free State Province, South Africa

Figure 3-1: Location of Moab Khotsong

Figure 3-2: Legal Tenure of Moab Khotsong

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Moab Khotsong Operations, Free State Province, South Africa

4Accessibility, Climate, Local Resources, Infrastructure and Physiography

Section 229.601(b)(96) (4) (i-iv)

4.1Accessibility

Moab Khotsong is located approximately 30km from the town of Klerksdorp, which is on the N12 national road. The mine is located approximately 10km southeast of the town of Orkney. The mine can be reached via tarred roads from all main access points in South Africa. Access to the mines are restricted by security fencing, security guards, booms and lockable gates at the main entrance. In addition, a communication system and access control system monitors personnel entering and leaving the mine properties.

4.2Physiography and Climate

Moab Khotsong is situated approximately 1,310 metres above sea level (“masl”) within the Highveld region of South Africa. The surrounding area is characterised by undulating plains interspersed by rocky peaks. The operations are situated immediately south of the Vaal River. No significant topographical disturbances are expected from mining operations. However, the topography is affected by slimes dams, waste rock dumps and solid waste disposal sites.

Klerksdorp has a semi-arid climate, with warm to hot summers and cool, dry winters. The average annual precipitation is 482mm. Heavy thunderstorms between November and February, during which much of the rainfall occurs.

The seasonal fluctuations in mean temperatures between the warmest and the coldest months vary between a minimum 5°C in winter to a maximum of 29°C in summer. The month of July is generally the coldest month with the hottest month typically being February.

The local climate does not pose any risk to the production at Moab Khotsong, and the operations continue throughout the year.

4.3Local Resources and Infrastructure

Infrastructure in the region is well established supporting the numerous operational gold mines in the area. The regional infrastructure includes national and provincial paved road networks, power transmission and distribution networks, water supply networks and communication infrastructure.

The operations are powered by electricity from Eskom Holdings State Owned Company (“SOC”) Limited (“Eskom”), and they have the necessary water and power infrastructure to support their remaining lives, including Zaaiplaats.

Moab Khotsong Mine has a single vertical shaft. Great Noligwa Mine has a twin vertical shaft and a dedicated ore processing plant. The Great Noligwa Shaft Pillar is accessed through Great Noligwa shaft, Middle and Top Mine is accessed through Moab Khotsong shaft and Zaaiplaats will be accessed through a decline system from the base of the Moab Khotsong shaft.

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Technical Report Summary for

Moab Khotsong Operations, Free State Province, South Africa

5History

Section 229.601(b)(96) (5) (i-ii)

5.1Historical Ownership and Development

Great Noligwa Mine was developed by AAC and was originally known as Vaal River No. 8 Shaft. Work on Great Noligwa was initiated in 1968, and the mine produced its first gold in 1972. Great Noligwa reached its production peak of around 1,000koz per annum in the late 1990s and at present, mining activity at Great Noligwa Mine is concentrated on the extraction of pillars.

The Moab Khotsong Mine was developed by AngloGold and is the youngest of South Africa’s deep-level gold mines. It came into production in 2003 and has been continuously economically exploited since then. Great Noligwa was merged with Moab Khotsong Mine in 2014, and since the merger of the two mines, annual production has been in the order of 250koz of gold.

Harmony assumed ownership of Moab Khotsong in March 2018 and has since added the Zaaiplaats area to the Mineral Resources and Mineral Reserves. The inclusion of Zaaiplaats in the LOM plan has extended the life of Moab Khotsong for 22 years up to 2044 and the overall production is expected to be in the order of 200koz of gold per annum.

The historical ownership and associated activities related to Moab Khotsong are summarised in Table 5-1.

Table 5-1: Summary of Historical Ownership Changes and Activities at Moab Khotsong

Year	Asset History Highlights
1968	The Vaal River No. 8 Shaft system and the gold plant comes into production.
1972	Vertical sub-shaft commissioned.
1998	AngloGold Ashanti was formed through the merger of the gold interests of Anglo American and its associated companies.
1991	AngloGold Ashanti initiates the development of Moab Khotsong Mine.
1999	Vaal River No. 8 Shaft renamed to Great Noligwa.
2003	Moab Khotsong mine comes into production.
2014	Great Noligwa mine merged into Moab Khotsong.
2017	Great Noligwa production footprint reduced.
2018	Harmony takes ownership and control of Moab Khotsong from AngloGold Ashanti.
2020	Great Noligwa Shaft Pillar extraction starts.
2021	Zaaiplaats Board approval and start of project.

5.2Historical Exploration

Exploration work in the area surrounding Great Noligwa was undertaken in the 1950s and 1960s. The work was initially limited to surface drilling. An extensive surface exploration programme was conducted across the Vaal River area by AAC.

After the establishment of Great Noligwa Mine, brownfield exploration continued from surface and underground access points to extend the known Mineral Resources at Great Noligwa. During the 1980s and 1990s, this exploration extended into the areas which were to become known as Moab Khotsong. The exploration efforts in the 1990s included further surface drilling, as well as a 3-dimensional (“3D”) seismic survey, which assisted in delineating the major fault blocks at depth.

Following the establishment of the Moab Khotsong Mine, exploration between 2005 and 2015 included another 3-dimensional (“3D”) seismic survey in 2011, additional surface drilling and long, inclined boreholes (“LIBs”). The latter which enabled the identification and quantification of the Zaaiplaats block.

Brownfields exploration continues at Moab Khotsong at present, to identify additional Mineral Resources, and to upgrade the confidence in existing Mineral Resources.

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5.3Previous Mineral Resource and Mineral Reserve Estimates

The previous Mineral Resource estimate for Moab Khotsong was declared as at 30 June 2021, according to the SAMREC Code, 2016. The previous Mineral Resource estimate, summarised in Table 5-2, is exclusive of Mineral Reserves and has been superseded by the current estimate prepared by Harmony in Section 11 of this TRS.

Table 5-2: Summary of Previous Moab Khotsong Mineral Resources as at 30 June 2021 (Exclusive of Mineral Reserves)

METRIC
Mineral Resource Category	Tonnes (Mt)	Gold Grade (g/t)	Gold Content (kg)
Measured	2.311	16.63	38,435
Indicated	5.282	14.92	78,789
Total / Ave. Measured + Indicated	7.593	15.44	117,224
Inferred	5.631	16.42	92,481
IMPERIAL
Mineral Resource Category	Tonnes (Mt)	Gold Grade (oz/t)	Gold Content (Moz)
Measured	2.548	0.485	1.236
Indicated	5.822	0.435	2.533
Total / Ave. Measured + Indicated	8.370	0.450	3.769
Inferred	6.207	0.479	2.973

The previous Mineral Reserve estimate for Moab Khotsong was also declared as at 30 June 2021, in accordance with the SAMREC Code. Modifying Factors were applied to the Mineral Resource to arrive at the Mineral Reserve estimate. These factors included a dilution to accommodate the difference between milling width and stoping width, as well as the Mine Call Factor (“MCF”). The previous Mineral Reserve estimate, summarised in Table 5-3, has been superseded by the current estimate prepared by Harmony as detailed in Section 12.3 of this TRS.

Table 5-3: Summary of the Previous Moab Khotsong Mineral Reserves as at 30 June 2021

METRIC
Mineral Reserve Category	Milled Tonnes (Mt)	Gold Grade (g/t)	Gold Content (kg)
Proved	2.913	7.77	22,626
Probable	12.304	8.89	109,410
Total (Proved + Probable)	15.217	8.68	132,036
IMPERIAL
Mineral Reserve Category	Milled Tonnes (Mt)	Gold Grade (oz/t)	Gold Content (Moz)
Proved	3.211	0.227	0.727
Probable	13.563	0.259	3.518
Total (Proved + Probable)	16.774	0.253	4.245

5.4Past Production

Since the commencement of mining in 1972, the average annual production rate of 14,463kg during this period was 327koz. The highest product rates at Moab Khotsong were achieved in 1998 of 33,511kg. The average annual production over the past five years is presented in Figure 5-1 and Figure 5-2.

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Figure 5-1: Graph of Past Production – Tonnes and Gold Grade

Figure 5-2: Graph of Past Metal Production

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Moab Khotsong Operations, Free State Province, South Africa

6Geological Setting, Mineralisation and Deposit

Section 229.601(b)(96) (6) (i-iii)

6.1Regional Geology

The Klerksdorp Goldfield is located on the western margin of the Archean Witwatersrand Basin, one of the most prominent gold provinces in the world. The Witwatersrand Basin is an approximately 7,000m thick terrigenous sequence comprising mainly arenaceous and argillaceous, together with minor rudaceous, lithologies deposited in a fluvio-deltaic environment in the centre of the Archaean Kaapvaal Craton of South Africa (Robb and Meyer, 1995). The regional geology of the Witwatersrand Basin is shown in Figure 6-1.

The Witwatersrand Basin hosts the Witwatersrand Supergroup, which either conformably or unconformably overlies the metamorphosed volcanic and minor clastic sediments of the Dominion Group (Tucker et al., 2016). The Dominion Group overlies the older granite-greenstone basement.

The majority of the Witwatersrand Supergroup is capped by the volcano-sedimentary sequence of the Ventersdorp Supergroup through an angular unconformity. The Ventersdorp Supergroup is in turn overlain by the dolomitic and quarzitic sequence of the Transvaal Supergroup, and sediments of the Karoo Supergroup (Tucker et al., 2016). Several suites of dykes and sills cut across the Archaean basement and the Witwatersrand, Ventersdorp, Transvaal and Karoo supergroups, and form important geological.

The Witwatersrand Supergroup is subdivided into the basal West Rand Group (“WRG”) and overlying CRG (Robb and Robb, 1998). The WRG extends over an area of 43,000km2 and is up to 5,150m thick. It is sub-divided in three subgroups, namely, from bottom upwards, the Hospital Hill Subgroup; Government Subgroup and Jeppestown Subgroup. The stratigraphic succession of the WRG mainly consists of shale sediments, with occasional units of banded iron formation and conglomerate. The CRG is up to 2,880m thick and covers an area of up to 9,750km2, with a basal extent of approximately 290km x 150km. It is sub-divided into the lower Johannesburg Subgroup and upper Turffontein Subgroup as shown in Figure 6-2. These subgroups are separated by the Booysens Shale Formation.

The major gold bearing conglomerates are mostly confined to the CRG, and these conglomerate horizons are known as reefs. The most important reefs within the CRG are at six stratigraphic positions, three within the Johannesburg Sub-group and three within the Turffontein Sub-group. The reefs are mined in seven major goldfields, and a few smaller occurrences, which extend for over 400km in what has been called “The Golden Arc”. This arc is centred on the prominent Vredefort Dome, as shown in Figure 6-1, which is thought to be a major meteorite impact site in the centre of the Witwatersrand Basin (Therriault et al., 1997). The goldfields, as shown in Figure 6-1, include: East Rand, South Rand, Central Rand, West Rand, West Wits, Klerksdorp, Free State (Welkom), and Evander.

6.2Local Geology

Moab Khotsong is located within the Klerksdorp Goldfield as shown in Figure 6-1. The general orientation of the Witwatersrand Supergroup succession in this goldfield is interpreted as southwest-trending and southeast dipping (Dankert and Hein, 2010).

The CRG is up to 2,100m thick in the Vaal River area. Moab Khotsong mainly exploits the Vaal Reef, which is located near the top of the Johannesburg Sub-group, within the CRG (Figure 6-2 and Figure 6-3). The Vaal Reef ranges in depth at Moab Khotsong from 1,500m - 3,400m BMD.

A series of northeast-trending faults including the Buffelsdoorn, Kromdraai, Buffels East and Jersey Faults, are a key feature of the Klerksdorp Goldfield. These major faults are south-dipping and have north-dipping “Zuiping” faults wedged between them. Moab Khotsong’s Vaal Reef structure plan is presented in Figure 6-4.

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Figure 6-1: Regional Geology of the Witwatersrand Basin

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Figure 6-2: Stratigraphy of the CRG in the Witwatersrand Supergroup

Source: Modified after Tucker et al. (2016)

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Figure 6-3: Stratigraphic Column of the Free State Goldfield

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Figure 6-4: Structure Plan for Moab Khotsong

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6.3Property Geology

The principal reef, both in terms of current production and Mineral Resources and Mineral Reserves, is the Vaal Reef. A second reef, lying approximately 225m stratigraphically above the Vaal Reef, is the C-Reef. This reef contributes less than 5% to the mining production. These reefs are continuously developed across the Great Noligwa Mine and Moab Khotsong mining right areas, with the exception of some fault-loss areas. The reefs dip at approximately 22° towards the southeast.

6.3.1Vaal Reef Lithology

The Vaal Reef consists of a thin basal conglomerate, termed the C-Facies, and a thicker upper sequence of conglomerates, termed the A-Facies. The A-Facies and the C-Facies are separated by the B-Facies, which is a barren orthoquartzite. The A-Facies is the primary economic horizon at Moab Khotsong; however, remnants of the C-Facies are sporadically mined where it is preserved below the A-Facies.

The Vaal Reef mining unit can reach thicknesses of up to 280cm, while the average channel width is approximately 90cm.

6.3.2C Reef Lithology

The C Reef is an approximately 10cm thick conglomerate, which has a 5mm - 20mm thick carbon seam commonly occurring at the base. To the north of the mine, the C Reef sub-crops against the Gold Estates Conglomerate Formation, and in the extreme south of the mine, the C Reef has been eliminated by a deep Kimberley erosion channel and the Jersey fault.

The C Reef is mined on a limited scale in the central part of Top Mine, where a high-grade, north-south trending sedimentary channel containing two economic horizons has been exposed. To the east and the west of this channel, the C Reef is poorly developed with limited areas containing economic concentrations of gold and uranium.

6.3.3Structure

The structure at Moab Khotsong has been interpreted from seismic data with confirmatory information sourced from surface drilling and LIBs. Moab Khotsong is structurally complex (Figure 6-4) with large fault-loss areas between Top Mine, Middle Mine and Zaaiplaats. The structural setting is one of crustal extension, dominated by major south dipping fault systems. The north dipping Zuiping faults are wedged between these major faults. The De Hoek and Buffels East faults bound the reef blocks of the Middle Mine to the northwest and southeast respectively, while the northern boundary of the Middle Mine is the north dipping Zuiping fault.

A northwest/southeast cross section from Top Mine to Middle Mine is presented in Figure 6-5, which demonstrates the structural complexity associated with the area. Similarly, a northwest/southeast cross section through Zaaiplaats is presented in Figure 6-6, again illustrating the complexity of area.

6.4Mineralisation

The gold mineralisation in the Witwatersrand deposits is believed to have followed an episode of deep burial, fracturing and alteration. The mineralisation model is that Archean gold bearing hydrothermal fluid was introduced into the conglomerates and circulated throughout in hydrothermal cells. The fluids precipitated gold and other elements through reactions that took place at elevated temperatures along the reef horizons, which was the more favourable fluid conduit.

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Figure 6-5: Top Mine and Middle Mine Cross Section and Plan

Figure 6-6: Zaaiplaats Cross Section and Plan

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6.4.1Vaal Reef Mineralisation

The Vaal Reef A-facies is dominated by silicate phases including quartz (~84 %), chlorite (~5 %), muscovite (~4 %) and zircon (~0.22 %), as well as sulphide phases of pyrite (~5 %). The remainder of the conglomerate consists of an array of accessory mineral phases which include uraninite, coffinite, brannerite, as well as various minor sulphide and oxide phases. The matrix of the conglomerate is made up of muscovite, chlorite, re-crystalized quartz and pyrite.

High gold values in the Vaal Reef are often located at the base of this unit and are associated with high uranium values as well as with the presence of carbon. It is interpreted that carbon was preferentially precipitated in bedding–parallel fractures that most commonly followed the base of the Vaal Reef package and that gold was precipitated very soon after the carbon, giving the critical gold-carbon association that characterises many of the high-grade Vaal Reef localities. Uranium is an important by-product which is also recovered from the Vaal Reef.

6.4.2C Reef Mineralisation

The Crystalkop formation attains a maximum thickness of about 9m, and contains a lower greenish, fuchsite-rich, tinged orthoquartzite overlain by a coarser grained protoquartzite that can be confused with Kimberley Channel deposits. The C-Reef is present at the base of the Crystalkop and is typically a thin (<5cm ) oligomictic conglomerate with a well-developed carbon seam at the base. Although grades can be similar to that of the Vaal Reef the C-Reef is only preserved in a small portion of the mine as it is truncated in the north by the Gold Estates Conglomerate and in the south by a large Kimberley channel. (Watts, M, 2010)

The C-reef comprises of the following minerals: quartz (74.34 to 80.32 weight %), muscovite (7.69 to 10.54 weight %), pyrophyllite (2.89 to 8.35 weight %) and pyrite (5.21 to 7.73 weight %). A wide variety of accessory minerals includes zircon, chlorite, gersdorffite, sphalerite, cobaltite, galena, rutile, chromite, magnetite, ilmenite, calcite, siderite and florencite. Uranium bearing minerals such as uraninite, coffinite and brannerite occur in relevant amounts. (Pienaar, D, 2016)

Gold is present predominantly in the form of pure gold, containing ~ 11 to ~ 18 weight % silver (Harris, 1990; Petruk, 2000; Zhou and Cabri, 2004; Zhou et al., 2004; Zhou and Gu, 2008).

6.4.3Alteration

Alteration is evident in the Vaal Reef and C Reefs at Moab Khotsong and is a result of the hydrothermal fluids that infiltrated the reef and have overprinted on the original mineral assemblage. The reefs contain authigenic sulphides such as pyrite, and other minerals associated with alteration such as chlorite. Gold associations with these mineral assemblages indicate a strong correlation of gold mobilisation and redistribution at the time of the hydrothermal fluid influx.

While alteration is an important part of the mineralisation at Moab Khotsong, alteration is not used for the identification, modelling or mining of the reefs.

6.5Deposit Type

The Moab Khotsong deposit is classed a meta-sedimentary gold deposit. Folding and basin edge faulting have been important controls for sediment deposition and gold distribution patterns within the Witwatersrand Basin and fold trends have been employed in the economic evaluation of various reef horizons.

6.6Commentary on Geological Setting, Mineralisation and Deposit

The regional geological setting, local and property geology, mineralisation and deposit-type for Moab Khotsong is well established, through many decades of exploration and mining. Reliable geological models, maps and cross sections are available that support the interpretations and inform the Mineral Resource estimates.

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7Exploration

Section 229.601(b)(96) (7) (i-vi)

Exploration at Moab Khotsong has focused on improving confidence in the geological model, as well as adding and upgrading additional Mineral Resources to the mine. Geological data has been obtained from an initial geophysical seismic survey and later through surface drilling, underground channel (chip) sampling, underground mapping and underground drilling.

7.1Geophysical Seismic Survey

A 3D seismic reflection survey was conducted by AngloGold in 1995 over the previously termed Vaal River region. The objective of the survey was to delineate the major sub-surface formations above and below the Vaal Reef, at depths ranging from 2.0km to 3.5km.

The data obtained from the survey was processed and interpreted, successfully delineating the stratigraphy from the Ventersdorp Supergroup to the base of the Witwatersrand Basin, including the Vaal Reef. This enabled AngloGold to better understand the structural characteristics of the Vaal River at depth. In 2011 another seismic reflection survey was done over the Zaaiplaats area. The seismic interpretation continues to guide the delineation of the major fault blocks in the vicinity of Moab Khotsong, and guide surface and underground drilling efforts.

7.2Topographic Surveys

As Moab Khotsong is an underground operation, topographic surveys are not material to the Mineral Resource estimates.

7.3Underground Mapping

Extensive face and reef development mapping is undertaken by the Geosciences Department at Moab Khotsong. This mapping is typically undertaken at the same time and at the same frequency as channel sampling, although denser mapping coverage is set up in structurally complex areas.

During mapping, face tapes are setup along gullies and the stope face and secured with the latest survey pegs installed in the workplaces. Reef position and other lithological and stratigraphic information is collected and measured relative to the reference tapes. The information is captured in a notebook.

Once at surface, the geologists transfer the information from the notebook into the system where a mapping report is produced for each mapped workplace. The mapping reports depict the geological information graphically relative to the survey measurement points. Data from the mapping is also incorporated into the geological models.

7.4Channel Sampling Methods and Sample Quality

Channel sampling of underground panels blasted on monthly basis is conducted perpendicular to the channel contact across the exposed channels. The section lines demarcating the width of the sample are drawn parallel to the reef waste contact while those demarcating the length of the sample are drawn at right angles to the reef waste contact and are marked 10cm apart. Samples of a consistent depth are chipped out between these section lines, along with 2cm of waste material from above and below the reef. A detailed description of the sampling process is provided in Section 8.1.1

Sampling of the channels is undertaken at the advancing face on a grid spacing of 5m x 5m. The sampling process is audited monthly and annually by the Geoscience Manager.

The location of samples collected from the Vaal Reef to date is shown in Figure 7-1, while that the C-Reef is presented in Figure 7-2.

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Figure 7-1: Location of Channel Samples Collected from the Vaal Reef to Date

Figure 7-2: Location of Channel Samples Collected from the C Reef to Date

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7.5Surface Drilling Campaigns, Procedures, Sampling, Recoveries and Results

The surface drill holes used in the estimation of the current Mineral Resources were drilled by AAC and AngloGold before Harmony acquired Moab Khotsong.

7.5.1Drilling Methods

The surface drill holes were completed using Boart Longyear DR27 drill rigs. This diamond core drilling was undertaken using a thin-walled TNW size core barrel that delivers NQ (47.6mm) core for better sample recovery. A single mother hole is drilled with multiple deflections.

The drill grid spacing of the surface drill hole intersections is up to 1,000m, and is often required to be complimented by underground drill hole intersections. The accuracy of the surface drilling intersection positions from drill holes that are from 2,000m to 3,000m in depth is the major limiting factor of actually achieving any sort of planned grid. Long surface drill holes often deflect and the controlling direction over that depth has always been challenging in the South African gold mining context.

7.5.2Collar and Downhole Surveys

Drill holes are surveyed to confirm both collar position and trajectory. Drill hole collar and downhole surveys are conducted on all surface drill holes at Moab Khotsong. Surface drill hole collars are surveyed by internal Land Survey Department

Downhole surveying is conducted using Electronic Multishot System and non-magnetic north seeking Gyro tools as supplied by a certified and specialised downhole survey company. Additional surveys are conducted on all LIB or long vertical borehole (“LVB”) drill holes for verification purposes, and the results are submitted together with the primary survey data used to determine the drill hole trajectories.

7.5.3Logging Procedure

The drill core was transported from the field to the core yard, where it was logged by the geologist according to the AAC or AngloGold standard logging procedures. Drill core logging is quantitative and qualitative. The following information is recorded:

•lithology;

•packing density;

•roundness;

•sorting;

•contact type, grain/pebble size;

•sediment maturity; and

•mineralisation; and

•alteration.

An electronic record of each drill hole is readily available. The drill holes are electronically plotted into Deswik (CADsMine) for visual validation and were incorporated into the dynamic Structural Model. The mineralisation and sedimentological characteristics of the reef are used to confirm and delineate facies zones.

7.5.4Drilling Results

The location of the surface drill holes intersecting the Vaal Reef on Moab Khotsong is presented on Figure 7-3, while those intersecting the C Reef are shown on Figure 7-4. The Vaal Reef and C Reef surface drilling results are summarised in Table 7-1. The drill holes have been drilled to a maximum depth of 3,500m below the surface.

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Figure 7-3: Location of Surface and Underground Drill Holes Intersecting the Vaal Reef

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Figure 7-4: Location of Surface and Underground Drill Holes Intersecting the C Reef

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Table 7-1: Summary of Surface Drill holes Intersecting the Vaal Reef and C Reef (pre 1980 – 2021)

Drill Hole ID	Deflections	Reef	Ave Gold Value (cmg/t)	Ave. Channel Width (cm)	Ave Grade (g/t Au)	Drill Hole ID	Deflections	Reef	Ave Gold Value (cmg/t)	Ave. Channel Width (cm)	Ave Grade (g/t Au)	Drill Hole ID	Deflections	Reef	Ave Gold Value (cmg/t)	Ave. Channel Width (cm)	Ave Grade (g/t Au)
BBP2	3	VAAL/R	221	78	2.84	MGR6	3	VAAL/R	1,292	48.3	26.74	MMB6	1	VAAL/R	1,324	124	10.71
BBP2	8	VAAL/R	266	70	3.81	MGR6	4	VAAL/R	2,070	48.9	42.31	MMB6	3	VAAL/R	1,268	107	11.81
BBP2	9	VAAL/R	148	85	1.73	MGR6	6	VAAL/R	2,037	36.6	55.59	MMB7	0	VAAL_A/R	565	98	5.76
BBP2	11	VAAL/R	142	88	1.61	MGR7	0	VAAL_A/R	1,408	47	29.75	MMB7	2	VAAL/R	621	103	6.01
BBP2	12	VAAL/R	159	69	2.29	MGR7	3	VAAL_A/R	442	48	9.20	MMB7	4	VAAL/R	506	110	4.61
GM1	0	VAAL/R	2,086	29	72.68	MGR7	4	VAAL_A/R	296	44	6.76	MSH2	11	VAAL/R	217	58	3.72
GM1	1	VAAL/R	1,903	19	101.22	MGR7	8	VAAL_A/R	1,691	80	21.04	MSH2	13	VAAL/R	160	69	2.30
GM1	2	VAAL/R	849	16	54.08	MGR7	9	VAAL_A/R	1,229	78	15.76	MSH2	14	VAAL/R	428	78	5.49
MGR2	0	VAAL/R	337	52	6.48	MGR7	10	VAAL_A/R	1,649	78	21.28	MSH2	15	VAAL/R	147	63	2.33
MGR2	1	VAAL/R	311	77	4.04	MGR7	11	VAAL_A/R	1,326	81	16.40	MSH2	18	VAAL/R	491	23	21.20
MGR2	9	VAAL/R	472	63	7.52	MGR8	5	VAAL_C/R	766	33	23.45	MSH2	19	VAAL/R	181	26	6.90
MGR2	12	VAAL/R	397	46	8.62	MGR8	6	VAAL_C/R	1,157	22	53.65	MZA10	0	VAAL/R	2,265	63	35.83
MGR2	13	VAAL/R	423	25	17.10	MGR8	7	VAAL_C/R	265	34	7.86	MZA10	2	VAAL/R	1,688	58	29.08
MGR2	14	VAAL/R	205	23	8.75	MGR8	9	VAAL_C/R	3,020	15	207.50	MZA10	3	VAAL/R	1,995	53	37.77
MGR2	15	VAAL/R	210	28	7.60	MGR8	11	VAAL_C/R	922	25	36.30	MZA10	5	VAAL/R	1,774	49	36.02
MGR2	21	VAAL/R	86	30	2.90	MGR8	12	VAAL_C/R	1,109	25	44.15	MZA10	6	VAAL/R	1,622	69	23.62
MGR2	22	VAAL/R	34	22	1.55	MHH1	16	VAAL/R	359	15	24.10	MZA10	7	VAAL/R	1,277	35	36.72
MGR2	23	VAAL/R	391	30	13.10	MHH1	20	VAAL/R	631	11	56.90	MZA10	8	VAAL/R	3,505	57	62.02
MGR2	24	VAAL/R	314	28	11.20	MHH1	21	VAAL/R	566	11	51.10	MZA3	0	VAAL/R	2,003	145	13.82
MGR2	27	VAAL/R	422	30	14.20	MHH1	22	VAAL/R	327	30	11.10	MZA3	9	VAAL/R	2,655	136	19.53
MGR2	28	VAAL/R	608	19	31.90	MMB2	0	VAAL/R	1,427	93	15.29	MZA3	10	VAAL/R	2,904	134	21.64
MGR4	0	VAAL/R	109	57	1.91	MMB2	1	VAAL/R	2,056	97	21.18	MZA3	11	VAAL/R	6,514	182	35.82
MGR4	1	VAAL/R	216	145	1.49	MMB2	2	VAAL/R	1,818	97	18.75	MZA3	13	VAAL/R	2,717	141	19.31
MGR4	2	VAAL/R	232	154	1.51	MMB2	3	VAAL/R	1,532	92	16.67	MZA4	0	VAAL/R	866	109	7.92
MGR4	3	VAAL/R	327	145.9	2.24	MMB2	4	VAAL/R	1,113	80	13.94	MZA4	1	VAAL/R	1,137	99	11.50
MGR4	4	VAAL/R	366	159	2.30	MMB3	3	VAAL_A/R	2,156	63	34.01	MZA4	2	VAAL/R	911	108	8.45
MGR4	8	VAAL/R	222	138.7	1.60	MMB3	4	VAAL_A/R	1,312	65	20.18	MZA4	3	VAAL/R	450	130	3.45
MGR4	9	VAAL/R	180	133.5	1.35	MMB3	5	VAAL_A/R	1,393	62	22.54	MZA4	5	VAAL/R	865	110	7.89
MGR4	10	VAAL/R	167	123.6	1.35	MMB3	6	VAAL_A/R	1,499	89	16.86	MZA4	7	VAAL/R	143	59	2.42

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MGR4	11	VAAL/R	111	122.2	0.91	MMB3	7	VAAL_A/R	2,084	85	24.49	MZA4	8	VAAL/R	127	52	2.46
MGR5	0	VAAL/R	525	172.1	3.05	MMB3	8	VAAL_A/R	2,724	90	30.39	MZA4	9	VAAL/R	163	48	3.41
MGR5	3	VAAL/R	1,842	155.1	11.88	MMB4	0	VAAL_A/R	6,897	129	53.37	MZA9	8	VAAL_A/R	711	80	8.84
MGR5	6	VAAL/R	1,255	106.2	11.82	MMB4	1	VAAL_A/R	5,614	114	49.47	MZA9	9	VAAL_A/R	298	89	3.34
MGR5	7	VAAL/R	1,289	117.2	11.00	MMB4	4	VAAL_A/R	4,149	138	29.97	MZA9	10	VAAL_A/R	256	77	3.33
MGR5	8	VAAL/R	1,709	117.3	14.57	MMB4	5	VAAL_A/R	3,445	125	27.52	MZA9	12	VAAL_A/R	1,481	52	28.35
MGR5	11	VAAL/R	797	176.5	4.52	MMB5	7	VAAL_A/R	1,056	89	11.87	MZA9	13	VAAL_A/R	1,318	56	23.53
MGR5	12	VAAL/R	363	141.6	2.56	MMB5	9	VAAL_A/R	1,895	126	15.09	MZA9	14	VAAL_A/R	1,230	55	22.45
MGR5	16	VAAL/R	1,149	184.6	6.23	MMB5	14	VAAL_A/R	2,609	112	23.36	ZA1	0	VAAL/R	2,808	155	18.13
MGR5	17	VAAL/R	1,073	143.5	7.47	MMB5	15	VAAL_A/R	2,016	94	21.43	ZA1	1	VAAL/R	1,551	162	9.56
MGR5	18	VAAL/R	1,043	185.3	5.63	MMB5	16	VAAL_A/R	1,648	105	15.73	ZA1	2	VAAL/R	9,524	181	52.62
MGR5	19	VAAL/R	1,853	188.7	9.82	MMB5	17	VAAL_A/R	2,303	115	20.02	ZA1	3	VAAL/R	9,459	178	53.20
MGR6	0	VAAL/R	981	172.5	5.69	MMB5	18	VAAL_A/R	2,214	112	19.76
MGR6	1	VAAL/R	911	147.8	6.16	MMB5	19	VAAL_A/R	1,503	113	13.29
MGR6	2	VAAL/R	401	132.8	3.02	MMB6	0	VAAL/R	2,077	127	16.41

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The summary of drilling by company is presented in Table 7-2.

Table 7-2: Summary of Surface and Underground Drilling by Company

Year	Company	No. Drill Holes	Surface (m)	Underground (m)
2013 (Jan-Dec)	AngloGold	498	0	58,444
2014 (Jan-Dec)	AngloGold	382	2,367	47,994
2015 (Jan-Dec)	AngloGold	255	1,018	34,740
2016 (Jan-Dec)	AngloGold	301	0	38,154
2017 (Jan-Dec)	AngloGold	107	0	37,640
2018 (Jan-Dec)	AngloGold	110	0	37,279
2019 (Jan-Jun)	Harmony	171	0	19,440
Jul 2019/Jun 2020	Harmony	258	0	27,491
Jul 2020/Jun 2021	Harmony	282	0	30,061
Jul 2021/Jun 2022	Harmony	260	0	32,083
Total		2,624	3,385	363,326

7.5.5Core Recovery

Upon delivery to the core yard, and prior to logging and sampling, the drill core is checked to ensure 100% core recovery. Core recovery is determined by dividing the measured length of the recovered core by the total length of the core run.

An intersection is complete and representative if core recovery is greater than 99%. Drill holes with poor recovery are not sampled. Extra caution is taken during the drilling process to ensure maximum core recovery on reef intersections, to prevent sample bias. The drill hole acceptance criteria is presented in Table 7-3.

Table 7-3: Drill hole Acceptance Criteria

Category	Comment
Acceptable	100% core recovery in the reef zone, or very minor loss due to reef chipping. No evidence of faulting within the reef horizon or at either contact with hanging wall or footwall lithologies.
Minimum value	Light to moderate disking of core in the core barrel due to drilling and/or ground conditions. Visual observations indicate that the conglomerate portion of the reef is usually more prone to disking, resulting in possible gold loss.
Faulted minimum value	If the fault loss is considered to be minor, this term may be used if the geologist is certain that only low-value internal quartzite is missing from the intersection.
Not acceptable	Heavy disking of core which may indicate core loss, partial known core loss due to grinding. Also faulting of any description within the reef zone.

The overall recovery percentage for surface drilling is 95% for Transvaal Supergroup, 98% for the Ventersdorp Supergroup and 99% for the Witwatersrand Supergroup.

7.5.6Sample Length and True Thickness

Sample lengths were taken at 15-20cm intervals of the full reef intersection and are considered as representative of the mineral deposit.

In areas where drill holes intersect the reefs at obtuse angles, the sampled width is corrected for true thickness using the angle of intersection and the drilled width. The true thickness is used to determine the value the gold content of the reef.

7.6Underground Drilling Campaigns, Procedures, Sampling, Recoveries and Results

Underground exploration drilling has been on-going throughout the operational life of Moab Khotsong as the mine deepens. Underground drilling intersections are sampled where possible and, if acceptable and representative, are used in the estimation process. For estimation purposes 129 Surface and LIB intersections were used.

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7.6.1Drilling Methods

Two types of underground drilling methods are used at Moab Khotsong. The first method involves drilling of LIBs or LVBs, which are drilled up to 1,500m in length at any angle between zero degrees to -90 degrees. These drill holes are generally drilled using a powerful hydraulic machine to improve depth penetration and core recovery. The core sizes used for reef intersections are BX (42.0mm) or BQ (36.5mm).

The second underground method is infill diamond core drilling, which is undertaken using pneumatic drill rigs. The core size used for reef intersections is AXT (35.5mm).

The underground drilling seeks to identify the geological structure and grade characteristics of the reefs at a 100m to 200m drilling spacing, in order to inform the placement of primary haulage and cross-cut development. In structurally complex areas, particularly in Middle Mine, infill drilling down to a 50m drilling spacing is required.

7.6.2Collar and Downhole Surveys

Drill holes are surveyed to confirm both collar position and trajectory. Drill hole collar and downhole surveys are conducted on all LIBs, as well many of the shorter underground drill holes at Moab Khotsong.

Underground drill hole collars are checked against layouts issued to diamond drilling contractors and confirmed by offsets taken underground in the workplaces.

Downhole surveying is conducted using Electronic Multishot System and non-magnetic north seeking Gyro tools as supplied by a certified and specialised downhole survey company. Additional surveys are conducted on all LIB/LVB drill holes for verification purposes, and the results are submitted together with the primary survey data used to determine the drill hole trajectories.

7.6.3Logging Procedures

The drill core was transported from underground to either the Great Noligwa or Moab Khotsong mine core yard, where it was logged by the geologist according to Harmony’s standard logging procedures. Harmony’s logging procedures, and those of AngloGold Ashanti are considered best practice, and have been in place at Moab Khotsong since it came into operation. Drill core logging is quantitative and qualitative. The following information is recorded:

•lithology;

•packing density;

•roundness;

•sorting;

•contact type, grain/pebble size;

•sediment maturity; and

•mineralisation; and

•alteration.

The geologists record complete descriptions of lithology and stratigraphy into the Fusion™ drill hole database. An electronic record of each drill hole is therefore readily available. The drill holes are electronically plotted into Deswik (CADsMine) for visual validation and are incorporated into the dynamic Structural Model. The mineralisation and sedimentological characteristics of the reef are used to confirm and delineate facies zones.

7.6.4Drilling Results

The location of the underground drill holes intersecting the Vaal Reef on Moab Khotsong is shown on Figure 7-3, whilst the location of those intersecting the C Reef is shown on Figure 7-4. During 2022, a total of

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32,083m of drilling was completed. The summary of underground drilling by company is presented in Table 7-2.

With over 331,000m of drilling having been undertaken since 2013, the results are too voluminous to be tabulated in this report. The results have, however, been included into the geological modelling process. With the exception of acceptable LIB intersections, underground drilling is not typically used for the Mineral Resource estimation process.

7.6.5Core Recovery

Where possible, precautions are taken by the drilling contractors to utilize core barrels to ensure maximum recovery.

Upon delivery to the core yard, and prior to logging and sampling, the drill core is checked to ensure 100% core recovery. Core recovery is determined by dividing the measured length of the recovered core by the total length of the core run.

An intersection is complete and representative if core recovery is greater than 99%. Drill holes with poor recovery are not sampled. Extra caution is taken during the drilling process to ensure maximum core recovery on reef intersections, to prevent sample bias. The drill hole acceptance criteria is presented in Table 7-3.

Geological acceptability of drill hole intersections is determined by geologists based on, amongst others, drill core condition and faulting. The acceptability is verified for each reef intersection before the assay results are used for Mineral Resource estimation.

The overall recovery for underground drilling is 99%.

7.6.6Sample Length and True Thickness

Sample lengths were taken at 15-25cm intervals of the full reef intersection and are considered as representative of the mineral deposit.

In areas where drill holes intersect the reefs at obtuse angles, the sampled width is corrected for true thickness using the angle of intersection and the drilled width. The true thickness is used to determine the value the gold content of the reef.

7.7.Hydrogeological Data

Many of the fault systems on the mine carry water and flammable gases, and throughout the mine, water and gas, usually in small quantities, may also occur at the contact zones of dykes and sills. A dedicated programme of cover drilling for development ends is undertaken to limit the likelihood of water and gas intersections in mining development. Records of intersections of water and flammable gases are made along with the geological observations, and these are used to inform Moab Khotsong’s dynamic geotechnical and hydrogeological models.

7.8Geotechnical Data

Geological exploration drilling is not typically used to gather geotechnical data – these data are gathered independently by the Geotechnical Engineer. Geotechnical issues related to underground workings are discussed in more detail in the Mining and Mine Design sections (Section 13).

7.9Commentary on Exploration

Surface drilling was used as the initial exploration drilling, and this was later infilled to provide sufficient detail for geological modelling and Mineral Resource estimation. The underground infill drilling system is in place to improve data density and are drilled from the underground development access drives.

The exploration has been undertaken using standard Harmony methods since the acquisition of Moab Khotsong, and prior to that using AngloGold Ashanti standard methods, which would have been in place for many years.

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The QP is of the opinion that the quality and quantity of the exploration methods and information gathered is sufficient to support the estimation of Mineral Resources and Mineral Reserves.

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8Sample Preparation, Analyses and Security

Section 229.601(b)(96) (8) (i-v)

This section summarises information relating to the sample preparation on site through to the laboratory preparation and analysis.

8.1Sampling Method and Approach

Sample types used to support both production and geological exploration include diamond drill core samples and channel (chip) samples.

8.1.1Channel Samples

A standard practice for the sampling of stopes and development ends is required to ensure quality of sampling information and safety in its collection. Such a document exists within Harmony, and all samplers and sampling crews are trained based on the rules of the sampling standard. The standard specifies all the steps and rules involved in the preparation of the face and the collection of samples, as well as all safety aspects of sampling.

The channel and sample lines are chipped out using a standard chisel and mallet. An electric saw has previously been used for taking samples in some development sections and is considered an excellent method of taking samples as it allows for an evenly cut and more representative sample. Practical difficulties and safety issues forced an end to sampling with the diamond saw.

The samples are individually chipped out to an even depth (1 to 2cm to replicate the same amount of sample as would be recovered from half BX core), commencing from the bottom sample. The remainder of the samples are chipped in succession up the face. Contamination of samples is reduced to a minimum by starting at the bottom.

A sampling dish is used to collect the chipped samples. If any contamination occurs from the surrounding rock, the sample is discarded and the section re-sampled. The samples are transferred from the sample dish to the sample bag. The sample dish is cleaned thoroughly before using it for the next sample.

All geological data (faults, dykes) between sampling sections are measured and recorded in the sampler’s field book. The sampler also records the numbering and positions of samples.

Samples are taken from underground by the samplers and delivered to the sampling store and then packed in secured containers, whereafter they are collected and delivered to the laboratory. All inter-person transfers are recorded. This process continues until the samples are delivered to the laboratory, where the chain of custody form is signed evidencing the date and time of sample receipt.

8.1.2Core Samples

Diamond drilled core is transported to the storage facility at the core yard, under the supervision of a Senior Geologist. Once there, the core is logged and sampled according to Harmony’s Drill Hole Sampling Procedure.

The diamond drilled core is cut lengthwise and one half is sent for assay and the other half is securely stored for future reference. The core is split or cut such that the orientation of sampling is unbiased relative to the orientation of the mineralisation. The core intersection angles are recorded and are later used to calculate the true widths of the mineralisation, for Mineral Resource reporting. Records are available stating whether drill-core sample taken was split or sawn and whether quarter, half or full core was submitted for analysis.

All samples are assessed for quality and signed-off by the Senior Geologist for completeness and auditability before the split core is bagged, sealed and tagged together with QAQC material and dispatched to the laboratory.

Details of the samples are captured on hard-copy log sheets and include the drill hole name, samples numbers, sample depths, from and to interval, and date on which the samples were submitted for assay. The log sheet is captured on the electronic database pending results from the designated laboratory.

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8.2Density Determination

The relative density (“RD”) used for Mineral Resource estimates is 2.78t/m3.

A review of the RD was completed during 2017 and determined that the results of the 2014 RD testing from 528 underground reef samples was still relevant. The RD was determined using Archimedes method of measuring the mass while dry and the mass while submerged.

8.3Sample Security

Chip samples are bagged, sealed and delivered by the samplers to the sampling store on the same day as they are collected. The sampling store is a secure facility with access control measures in place. Samples are delivered to the laboratory by the mine.

Cores are delivered to the core yard at the end of each days drilling for secure storage. Sampling only takes place at the core yard. The samples are bagged and sealed and stored until they are delivered to the laboratory.

Samples can only be transported by a permit holder for transporting gold bearing material. Waybills and registers are checked and signed off by security. The samples are received from the mine in locked containers with seals. The sample labels are scanned at the designated laboratory and the batches compared to the submitted sample sheets. The scanned bar codes are kept at the laboratory and compared to the work sheets that are automatically created on the system. Sample lists submitted by the mine are used to compare what is received at the laboratory.

8.4Sample Storage

All pulp samples of exploration drill hole intersections and underground chip sample are kept for a few months at the laboratory and later discarded. The remaining half of the sampled core of exploration holes is kept at the core yard for future references.

8.5Laboratories Used

SGS Laboratories South Africa (Pty) Limited (“SGS”) is used for all sample preparation and analysis for Moab Khotsong. Up to March 2020, all samples were sent to the SGS laboratory in Randfontein for fire assay (gold) and X-ray powder diffraction (“XRD”) analysis for uranium. The laboratory is ISO/IEC 17025:2017 certified and certified for chemical analysis by the South African National Accreditation System ("SANAS”) (Accreditation No. T0265).

After the accreditation of the SGS laboratory in Orkney by SANAS on 9 March 2020, samples have been sent to the Orkney laboratory.

8.6Laboratory Sample Preparation

Upon receipt, the samples are dried, crushed, and milled to the appropriate size. Routine screen tests on pulps by the assay laboratory are used to check comminution of samples to contract specification. The contract specification is that the comminution should be 90% to 95% passing 75µm.

The grind should not be less than 90% passing 75µm nor should it be more than 95% passing 75µm. If the grind is less than 90% passing 75µm (under milled), not all the gold will be liberated. If more than 95% passing 75µm (over milled), the risk is run of smearing and rolling the gold particles (adversely affecting the Au assay/value obtained). This standard is applicable to all gold assay methods.

The total percentage mass loss on each sample should not exceed 2%.

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8.7Assaying Methods and Analytical Procedures

For the period 1 January 2020 to 31 December 2021, Moab Khotsong submitted a total of 28,377 samples for analysis of gold and uranium.

Gold is analysed using the fire assay method, with a gravimetric finish, while uranium is analysed through by XRD.

After the preparation stage the samples are packed into trays and transported to the fluxing-room. A catch weight aliquot of ±30g and a flux aliquot of ±100g is placed into a fire assay crucible and thoroughly mixed.

The samples are then transferred to the ovens for the fusion process. The cupellation process is where the precious metals are collected in a lead button and then separated from the lead by means of oxidation fusion. The gold prill is then added to a nitric acid solution to dissolve the silver and thereafter the remaining gold prill is weighed to determine its mass relative to the original sample mass.

To ensure that a high standard of analysis is maintained, each step of the analytical process and procedure, including the adherence to safety standards, is checked by a supervisor.

8.8Sampling and Assay Quality Control (“QC”) Procedures and Quality Assurance (“QA”)

This section summarises information relating to the field and laboratory QAQC measures in place to ensure the integrity of the assay results.

8.8.1Field QAQC

Out of the 28,377 samples submitted to the laboratory for analysis, a total of 1,541 quality control samples were included in the sample stream (Table 8-1).

Table 8-1: Field QAQC Samples

Type	Total No.
Primary Samples	24,154
Blanks	1,743
CRM	223
Duplicates	91
Total	26,211

Blank samples are submitted to monitor the possible contamination in the fusion process stage of the analysis at the laboratory. High- and low-grade CRMs are inserted to monitor the accuracy of the analytical methods, which ensures that the full range of gold grades is covered. Duplicate samples are submitted to monitor the precision of the analytical methods and pulverized primary samples are also selected at random and re-assayed.

In the period 2021-2022, the results for the blanks and CRMs showed acceptable levels of accuracy and contamination, however, the results from the pulp duplicates did not display the normal level of assay repeatability.

Monthly Process Compliance Reports are compiled as part of the quality control on the sampling process. Standard formats are used and recorded for audit purposes. Process Compliance Reports on the chip Samplers are also compiled in order to check the quality of the chipping. These observations are made weekly and are also kept on record for audit purposes.

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8.8.2Laboratory QAQC

The laboratory's QAQC procedures include the following:

•insertion of split pulps, crushed duplicated and standards; and

•regular audits of the laboratory processes and facility are conducted by mine personnel and regional experts to monitor compliance. All audit reports compiled are assessed for remedial action by the responsible persons before next review. Monthly laboratory meetings are held with the Moab Khotsong representatives to discuss concerns over the specific periods.

8.8.3QAQC results

An analysis of the QAQC results is undertaken to validate the accuracy of the laboratory assay data and ensure a high level of confidence in the grades estimated for the Mineral Resource and Mineral Reserve.

If results of any of the CRM samples fall outside two standard deviations of the expected value for that particular CRM, they are deemed to have failed (i.e., plotting outside the acceptable tolerance limit). Portions of the batches that fail this criterion are queried with the laboratory and the samples are re-assayed.

The degree of bias is also monitored by comparing the calculated mean value to the expected value. Consistent failure of a standard and the bias to the low or high side of a standard, are cause for concern and acted on as soon as a trend is observed. The results of the Moab Khotsong quality control samples and the performance of the CRM or standard samples is summarised in Table 8-2 and Table 8-3, respectively.

Table 8-2: Summary of Analytical Quality Control Data

Quality Control Material Type	No. of Samples Submitted	No. of Failed Samples	Action Taken
AMIS0428	59	2	Re-assay Passed
AMIS0460	13	8	Re-assay Passed
AMIS0429	116	1	Re-assay Passed
AMIS0430	11	0
AMIS0705	3	0
AMIS0465	2	0
AMIS0455	19	5	Re-assay Passed
Milled Blanks	583	6	Re-assay Passed Contamination
Crushed Blanks	599	6	Re-assay Passed Contamination
Coarse Blanks	561	1	Re-assay Passed Contamination
Pulp duplicates	91	NA	Higher grade Precision - Laboratory discussion

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Table 8-3: Summary of Moab Khotsong CRM Performance

Standard	CRM Alias	Certified Value (g/t Au)	Moab Khotsong (±2 STD)		Laboratory
			Upper Limit (g/t Au)	Lower Limit (g/t Au)	Analysis	Ave (g/t Au)	Outliers & Failures	Bias (%)
AMIS0428		43	45.1	41.77	FA	43	2.0	0
AMIS0460	CRMOG009	36	37.8	33.6	FA	36	8.0	-1
AMIS0429		23	24.0	21.86	FA	23	1.0	-1
AMIS0430		3	2.9	2.44	FA	3	0.0	-2.91
AMIS0705		13	14.5	11.31	FA	13	0.0	-1.18
AMIS0465	CRMOC005	15	16.8	12.85	FA	14	0.0	-4
AMIS0455		52	55.4	49.08	FA	52	5.0	-1
Coarse blanks		1	1.5	0	FA	0	1.0	-34
Crushed blanks		1	1.5	0	FA	0	0.0	-37
Milled blanks		1	1.5	0	FA	1	0.3	14

The results of the CRMs are used to identify any issues with specific sample batches, and biases associated with the laboratory to which primary samples are sent. Control charts are produced to demonstrate performance of the laboratory’s sample preparation and analytical procedures.

8.9Comment on Sample Preparation, Analyses and Security

In the opinion of the QP that:

•the drill core sampling method adopted at Moab Khotsong is appropriate for the narrow, tabular, Witwatersrand-type gold mineralisation;

•all underground chip sampling is representative of the channel sampled;

•the sample preparation, security and analytical procedures followed for gold grade determination are adequate; and

•the results of the QAQC assessment have been appropriately addressed to ensure that the assay results of the primary samples are adequate for Mineral Resource estimation.

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9Data verification

Section 229.601(b)(96) (9) (i-iii)

9.1Databases

All drill hole and underground channel sampling data is captured and stored in an industry standard database, Fusion Client™, on a centralized server that is backed up. This data was previously captured and stored in AuBIS™ electronic database and upon acquisition, Harmony migrated the database to DatamineTM Fusion. This data is protected through administration rights allocated to an authorised administrator once the data has been finalized.

9.2Data Verification Procedures

Data verification procedures included the following:

•the drill hole database was checked against the original logs;

•the database was checked for missing collar coordinates, collar position and elevation errors, downhole survey errors, interval errors and duplicate sample records;

•when assay results for drill holes were returned from the laboratory, they were imported into the database. The QC sample results were assessed for performance before the primary sample results could be used for Mineral Resource estimation;

•the primary assay results captured in the database were validated by spot checking a selection of drill holes used in the current Mineral Resource estimate; and

•the assays captured in the database was checked against the original laboratory certificates.

Data checking and verification of underground point data is controlled by a graphic interface within the Syncromine™ software and eliminates the erroneous co-ordination of sampling positions.

Datamine™, Syncromine™ and Deswik™ applications are used to identify and eliminate any erroneous or duplication of data, especially where the source data is from outside sources and not been filtered through the control processes. These should however still be checked visually by the Evaluator and Senior Evaluator when doing data cleaning.

9.3Limitations to the Data Verification

There are no limitations with regards to data verification.

9.4Comment on Data Verification

The QP is of the opinion that the Moab Khotsong drill hole and sample database is reliable and adequate for the purposes Mineral Resource and Mineral Reserve estimation.

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10Mineral Processing and Metallurgical Testing

Section 229.601(b)(96) (10) (i-v)

All of the ore from the current mining areas at Moab Khotsong is treated at the Noligwa gold processing facility at Great Noligwa. This is a well-established plant which has been treating ore from the Moab Khotsong Mine (in addition to the Great Noligwa Mine) since 1971. Harmony is therefore able to make use of historical recovery trends as the primary basis for their recovery assumptions, rather than through the use of metallurgical testwork.

The metallurgical assumptions for the Zaaiplaats Feasibility Study were not materially different to those which were used for the Moab Khotsong LOM Plan. Zaaiplaats hosts Vaal Reef with essentially the same mineralogical properties as the remaining Moab Khotsong operations. No dedicated metallurgical testwork was therefore required as part of the Zaaiplaats Feasibility Study.

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11Mineral Resource Estimate

Section 229.601(b)(96) (11) (i-vii)

The narrow-tabular nature of the Vaal and C Reefs at Moab Khotsong lend themselves to the estimation of grade and thickness in two-dimensional (“2D”) block models, without the requirements for geological wireframes. An independent process of building a set of three-dimensional (“3D”) wireframes of the structural interpretation to inform mine planning and the Mineral Reserve estimates is also undertaken.

Gold values are estimated into geological domains using geostatistical parameters that reflect the variability of the data and the data spacing, utilising a customised script in DatamineTM modelling software. This allows the steps in the process to be repeated, recorded and easily audited.

11.1Geological Database

The Mineral Resource estimate is based on the surface and underground exploration data obtained up to December 2021. The validated database contains a total of 129 surface drill holes and 516,547 underground channel samples. The database is exported from Fusion™ to Datamine™.

11.2Global Statistics

Histograms and statistics of the raw data are calculated for each geological domain for comparison purposes. The Coefficient of Variation ("COV"), calculated by dividing the standard deviation with the mean, gives a measure of the variability of the data. A high COV (>1) represents highly variable or highly skewed data, which may require some form of capping of extreme values to lower the COV to a more reasonable value (c.1).

The global statistics by geozone are presented in Table 11-1.

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Table 11-1: Summary of the Gold Assay Descriptive Statistics

Reef / Geozone	Facies	No. Samples	Minimum (g/t Au)	Maximum (g/t Au)	Mean (g/t Au)	Variance	SD (g/t Au)	COV
Vaal Reef
1	460	62 646	1.000	9 105	1 532	3,800,155	1 679	1.096
2	440	56 670	1.000	17 943	2 937	14,515,821	3 271	1.114
3	470	36 086	1.000	6 696	982	2,060,976	1 183	1.205
4	500	96 471	1.000	12 382	2 092	6,594,296	2 194	1.049
5	370	105 436	1.000	20 287	4 041	17,880,802	3 767	0.932
6	373	33 597	2.400	20 526	3 585	19,097,031	3 743	1.044
7 (5)	370	208	86.000	9 524	2 342	4,082,336	1 946	0.831
8 (4)	500	13	109.000	621	294	44,033	164	0.558
9 (3)	470	7	210.000	2 070	1 128	2,060,976	674	0.598
10 (2)	440	9	265.000	3 020	1 341	17,292	794	0.592
11 (1)	460	28	34.000	1 853	678	171,250	511	0.754
12	500	5 310	25.000	10 877	2 202	5,728,128	1 948	0.885
13	500	7 051	10.000	9 598	1 790	3,958,546	1 790	1.000
14	500	7 939	2.000	12 429	2 040	8,388,524	2 308	1.131
15	500	6 824	1.000	8 230	1 453	3,934,513	1 453	1.000
16	500	740	7.000	10 112	1 918	4,619,506	1 832	0.955
17	430	54 116	1.000	8 064	1 330	3,071,577	1 488	1.119
18	460	14 863	1.000	5 046	896	1,167,364	960	1.071
21 (18)	460	0	1.000	5 046	896	1,167,364	960	1.071
C Reef
1	CR1	13 885	1.000	12 358	1 951	7,280,867	2 258	1.157
2	CR3	5 224	1.000	4 597	675	901,390	831	1.231
3	CR2	9 424	1.000	8 287	1 337	4,401,901	1 561	1.168
Note: COV - Coefficient of variation

11.3Geological Interpretation

The reefs have been sub-divided into several lateral facies, or geozones, with similar geological and grade characteristics. These geozones consider variations in stratigraphy, mineralization, structure and sedimentology, and are estimated separately in estimation domains (“EDs”). The imported data is attributed to both the appropriate EDs, for generating geostatistical models.

11.3.1Vaal Reef Geozones and EDs

The independent estimation within the different geozones at Moab Khotsong result in seven different EDs, which are referred to as 370, 373, 300, 500, 470, 440 and 460 (Figure 11-1: Vaal Reef Estimation Domains). The characteristics of each geozone are described as follows:

•370 Geozone - high grade geozone in the Top Mine area with a narrow reef package, mainly dominated by conglomerate. Dark chloritic alteration is developed at the base or throughout the whole package. It has disseminated pyrite mineralization with occasional small buckshot pyrite;

•373 Geozone - high grade equivalent of the 370 Geozone in the Middle Mine area and has similar characteristics to the 370 Geozone;

•500 Geozone - medium to low grade geozone which is less conglomeratic than the 370 Geozone. The pyrite mineralization consist of coarse crystalline and replacement pyrite. the reef package is on average 140cm thick, but variation does occur;

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•470 Geozone - low grade geozone developed on the boundary of the Top Mine area and which extends into the Lower Mine. The geozone consist of a poorly developed A Facies with sporadic C Facies and B Facies quartzites. Pyrite mineralisation can be both crystalline and disseminated;

•440 and 460E Geozones - extend from the neighbouring Kopanang Mine (Figure 3-1), and which are separated from each other purely on grade. The geozones are dominated by the C Facies. A carbon seam is developed on the basal contact of the reef; and

•460W Geozone - also extends from Kopanang Mine into the Lower Mine area. The Geozone is similar to the 460E Geozone and although the reef may contain a thick carbon seam, it is a hard seam that typically does not contain gold.

11.3.2C Reef Geozones and EDs

The independent estimation within the different C Reef geozones at Moab Khotsong result in three different EDs, which are referred to as CR1, CR2 and CR3 (Figure 11-2: C-Reef Estimation Domains). The characteristics of each geozone are described as follows:

•Geozone CR1 - is the high-grade geozone within which the Great Noligwa shaft is located and in which area most of the historical mining on the C Reef has taken place. From a geostatistical point of view the area is both higher grade and has a thicker channel width than the other C Reef geozones. Geologically this is because both the No. 1 and No. 2 Units of the C Reef are preserved, rather than just the No. 2 Unit. The highest grades are present where both units are well developed and have carbon. The areas immediately beyond the No. 1 sub-crop position still have very well developed high grade No. 2 facies and are included in the CR1 geozone;

•Geozone CR2 - is the low-grade geozone at Great Noligwa and is also characterized by thin or no reef. Grades are often very low. This geozone represents an inter-channel paleo-high where no conglomerate deposition has occurred. Subsequent carbon and gold mineralization has been focused in the channel areas, with the inter-channel areas being virtually barren of gold; and

•Geozone CR3 - the reef in this geozone consists of a mixture of well-developed and poorly developed No. 2 Unit, with the odd No. 1 Unit remnant. Areas of hangingwall-footwall contact conditions can be expected to be fairly common within this geozone. Grades can be expected to vary drastically over short distances, as new reef types can occur very abruptly. The transition from geozone CR3 to geozone CR2 is probably gradational in areas. Geologically geozone CR3 represents a gradational change from channel deposits to interchannel deposits. The paleo-topography was uneven, and terrace and slope conditions may have played a role in reef development. Fairly narrow zones of high grade can be expected to be separated by low grade, the low-grade areas becoming more common towards the inter-channel areas.

11.4Structural Wireframe Model

A set of 3D structural wireframes is generated, representing the geological interpretation for each reef. This is informed by the geological drilling, chip sampling, underground geological mapping and survey point data (“pegs”) data and is created in Datamine™ in order to allow subsequent mine design and planning to take cognisance of the latest geological information. These wireframes are not required for the Mineral Resource estimates.

11.5Compositing

The drill hole and chip samples are composited over the full length of the reef intersection.

11.6Capping

Outlying values (both for cmg/t and channel width) are calculated per domain at an optimal percentile using the “QUANTILE” process. The “capping” allows for meaningful Semi-Variogram modelling and avoids potential over-estimation due to extreme sample values. The capping values are presented in Table 11-2.

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Table 11-2: Capping Values by Reef and Geozone

Reef / Geozone	Facies	Au Cut (g/t) (Max)	CW Cut (cm) (Max)	Reef / Geozone	Facies	Au Cut (g/t) (Max)	CW Cut (cm) (Max)
Vaal Reef				C Reef
1	460	275.9	33.0	1	CR1	148.9	83.0
2	440	498.4	36.0	3	CR2	43.3	106.0
3	470	55.8	120.0	2	CR3	123.7	67.0
4	500	59.0	210.0	Note: CW - Channel width
5	370	121.5	167.0
6	373	84.8	242.0
7 (5)	370	52.6	181.0
8 (4)	500	4.1	153.0
9 (3)	470	12.0	172.0
10 (2)	440	91.5	33.0
11 (1)	460	9.8	189.0
12	500	46.1	236.0
13	500	36.5	263.0
14	500	58.4	213.0
15	500	35.5	232.0
16	500	74.4	136.0
17	430	152.2	53.0
18	460	98.9	51.0
21 (18)	460	98.9	51.0

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UPDATE

Figure 11-1: Vaal Reef Estimation Domains

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Figure 11-2: C-Reef Estimation Domains

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11.7Variography

The experimental semi-variogram is a descriptive statistic diagnostic tool for spatially characterizing regionalized variables and is central to the process of kriging with the set data that can be used. The semi-variogram is a mathematical function that describes how the spatial continuity of the sampled attribute changes as a function of distance and orientation.

Either an isotropic or an anisotropic model can be defined, comprising a nugget variance and up to 9 individual structures, although it is rarely necessary to include more than three structures. Each structure may be either spherical, power, exponential, Gaussian or De Wijsian, although spherical models are deemed adequate for this shaft. Point-support semi-variograms are modelled for the Measured Mineral Resources; 60m x 60m declustered-support semi-variograms are modelled for the Indicated Mineral Resources and 120m x 120m declustered-support semi-variograms are modelled for the Inferred Mineral Resources .

11.8Mineral Resource Estimation Methods

Grade and thickness estimates are undertaken within the geozones and informed by statistical and geostatistical analysis. Gold accumulation (cmg/t), which factors both reef thickness and grade, and channel width, are the two variables estimated. No change of support corrections are considered necessary as it is assumed that the differing support sizes for chip samples and drill hole samples are negligible.

11.9Estimation Parameters

The orientations and ranges of each geozone’s Semi-Variogram are used to determine the optimised set of kriging estimation parameters. The search ellipse is aligned with respect to its range and direction, to the direction of the associated semi-variogram, as well as the range distances.

The estimation method used for the local Measured Mineral Resource estimates is Ordinary Kriging (“OK”) and for the Indicated and Inferred estimates, simple macro kriging (“SMK”). Estimates are generally kriged into 30m x 30m blocks for the Measured category, using point support data. The Indicated category estimates are kriged into 60m x 60m blocks, using the associated semi-variograms, utilising a macro kriging declustered data set. Similarly, the Inferred category estimates are kriged into 120m x 120m blocks, using the associated semi-variograms.

The minimum and maximum number of data points used for the Vaal Reef by Mineral Resource category are:

•15 and 40 for Measured;

•8 and 20 for Indicated; and

•3 and 10 for Inferred.

The minimum and maximum number of data points used for the C Reef by Mineral Resource category are:

•15 and 35 for Measured;

•10 and 40 for Indicated; and

•4 and 10 for Inferred.

Any un-kriged areas in the Inferred category regions are then estimated using a global mean.

The Measured Mineral Resource model is constrained using the Slope of Regression Estimation Confidence and merged together with the Indicated Mineral Resource and Mineral Resource models to produce a combined kriged block model.

The distribution of the Vaal Reef cmg/t estimates is show in Figure 11-3 and the distribution of the cmg/t estimates for the C Reef is shown in Figure 11-4.

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Figure 11-3: Distribution of the Vaal Reef Gold Values at Moab Khotsong

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Figure 11-4: Distribution of the C Reef Gold Values at Moab Khotsong

11.10Relative Density and Tonnage Calculation

The RD currently used for tonnage calculation at Moab Khotsong is an average of 2.78. Reef volume is determined by block area multiplied by the thickness estimate. The tonnage of each reef horizon is determined by multiplying the volume by the RD.

11.11Model Validation

The QP validated the Moab Khotsong Mineral Resource model using the following:

•visual comparisons with the raw drill hole data;

•comparisons of the raw drill hole data statistics with the model statistics;

•model volume;

•swath plots; and

•visual assessment of the block model with drill hole intersections to ensure that the grades are locally honoured by the model.

The QP did not identify any critical errors in the block model.

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11.12Mineral Resource Evaluation

The Mineral Resource estimate for Moab Khotsong is considered to have reasonable prospects for economic extraction. The cut-off value for the Mineral Resources has been determined as 1,500cmg/t, based on the economic assumptions presented in Table 11-3, at the effective date of 30 June 2022. This cut-off considers high-level assumptions for mining and processing, as well as Moab Khotsong’s likely cost structure, informed by the ongoing mining operations.

The gold price has been derived by the Harmony Executive Committee. The QP considers the price to be appropriate for Mineral Resource estimation and is slightly higher than that used for estimating Mineral Reserves (USD1,546/oz).

Table 11-3: Harmony Economic Assumptions (30 June 2022)

Description	Unit	Value
Gold Price	USD/oz	1,723
Exchange Rate	ZAR:USD	15.35
Gold Price	ZAR/kg	850,191
Plant Recovery Factor	%	96.92
Unit Cost	ZAR/t	4,708

11.13Mineral Resource Classification and Uncertainties

The Mineral Resources have been classified into Measured, Indicated and Inferred categories, according to the SAMREC Code and S-K 1300 definitions. The classification is based on geostatistical and geological confidence.

For the geostatistical confidence, the Measured Mineral Resource model is constrained by the Slope of Regression Estimation Confidence, and the Indicated and Inferred Mineral Resource models are constrained by their kriging estimation parameters.

The QP then considers if the geostatistical confidence boundaries require modification based on the geological confidence in an area. The geological confidence could include confidence in the sedimentary facies and mineralisation model, or confidence in the structural model.

The geological loss factors presented in Table 11-4 have been applied to the Mineral Resource estimates. These are informed by the analysis of the drilling intersections, the structural interpretation, and the historical geological losses.

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Table 11-4: Geological Losses Applied by Mineral Resource Category

	Vaal Reef			C Reef
Classification	Top Mine	Middle Mine	Zaaiplaats	Top Mine
Measured	3.0%	2.0%	2.0%	3.0%
Indicated	15.3%	14.1%	17.0%	17.8%
Inferred	33.7%	30.0%	30.0%	33.7%

The application of the classification criteria above results in the following set of approximate sample spacings for each Mineral Resource category:

•1,000m x 1,000m for Inferred;

•100m x 100m for Indicated; and

•5m x 5m for Measured (underground channel sampling).

Factors that may affect the Mineral Resource estimates include the following:

•gold price assumptions;

•exchange rate assumptions;

•operating and capital cost assumptions;

•gold recovery assumptions;

•geology-related risks; and

•operational risks.

11.14Mineral Resource Estimate

The Mineral Resources were originally prepared, classified and reported according to SAMREC, 2016. For the purposes of this TRS, the Mineral Resources have been classified in accordance with § 229.1302(d)(1)(iii)(A) (Item 1302(d)(1)(iii)(A) of Regulation S-K).

The Mineral Resource estimate, as at 30 June 2022, exclusive of the reported Mineral Reserves, for both the Vaal and C reefs is presented in Table 11-5. It is important to note that the combined Measured and Indicated Mineral Resources, inclusive of Mineral Reserves, are carried forward to the Mineral Reserves conversion and subsequent LOM planning.

The QP compiling the Mineral Resource estimates is Ms LB Freese, Ore Reserve Manager, and Harmony employee.

Table 11-5: Summary of Moab Khotsong Mineral Resource Estimate as at 30 June 2022 (Exclusive of Mineral Reserves) 1-8

METRIC
Mineral Resource Category	Tonnes (Mt)	Gold Grade (g/t)	Gold Content (kg)
Measured	2.331	17.64	41,110
Indicated	3.476	16.96	58,962
Total / Ave. Measured + Indicated	5.807	17.23	100,072
Inferred	2.555	19.09	48,762

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IMPERIAL
Mineral Resource Category	Tonnes (Mt)	Gold Grade (oz/t)	Gold Content (Moz)
Measured	2.569	0.514	1.322
Indicated	3.832	0.495	1.896
Total / Ave. Measured + Indicated	6.401	0.503	3.217
Inferred	2.816	0.557	1.568
Notes:
1. The Mineral Resources were originally prepared, classified and reported according to SAMREC, 2016. For the purposes of this TRS, the Mineral Resources have been classified in accordance with § 229.1302(d)(1)(iii)(A) (Item 1302(d)(1)(iii)(A) of Regulation S-K). The Qualified Person responsible for the estimate is LB. Freese, who is the Ore Reserve Manager, and who is a Harmony employee.
2. The Mineral Resource tonnes are reported as in-situ with reasonable prospects for economic extraction.
3. Tonne measurements are reported in metric units. Gold grades are reported in grams per metric tonne (“g/t”).
4. The Mineral Resources are reported using a cut-off value of 1,500cmg/t determined at a 90% profit guidance, and a gold price of USD1,723/oz.
5. Tonnes are reported as million metric tonnes (“Mt”) rounded to two decimal places. Gold values are rounded to zero decimal places.
6. Mineral Resources are exclusive of Mineral Reserves. Mineral Resources are not Mineral Reserves and do not necessarily demonstrate economic viability.
7. Rounding as required by reporting guidelines may result in apparent summation differences between metric tonnes (“t”), gold value and metal content.
8. The Mineral Resource estimate is for Harmony’s 100% interest.

The location of the Vaal Reef and C Reef Mineral Resources in relation to the mining right boundary is presented in Figure 11-5 and Figure 11-6, respectively.

11.15Audits and Reviews

Mineral Corporation Consultancy (Pty) Ltd (“The Mineral Corporation”) conducted an external audit of the current Mineral Resource and Mineral Reserve estimates in August 2021. Its findings were presented in report No. C-HGC-R&R-1950/1179. The Mineral Corporation concluded that Mineral Resources and Mineral Reserves as at June 2022 can be disclosed and signed-off by the QP according to internationally recognised mineral reporting guidelines and rules.

11.16Mineral Resource Reconciliation

The combined Measured and Indicated Mineral Resource gold content estimate for 2022, exclusive of Mineral Reserves, decreased by approximately 12% from 5.660Moz to 5.392Moz of gold. This decrease is primarily due to a reduction in Mineral Resources in the Zaaiplaats area due to rock engineering pillars and inventory movement (Hormah Block).

•Top and Middle Mine depletions of 0.280Moz were replaced and the Resource from these areas increased by 0.189Moz and 5%

•Value increased by 2 % accounting for 0.066Moz

•Volume increased by 3%. Structure gains accounted for 0.031Moz, 0.189Moz was accounted for by an increase in structure confidence and 0.097Moz was moved from inventory in isolated blocks of ground that can be mined profitably.

•The Zaaiplaats area reduced by 28% and 2.415Moz due to rock engineering dip pillars that was moved into inventory and the Hormah Block, that is not part of the Board Approved plan, was moved to inventory.

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Figure 11-5: Location of Moab Khotsong Vaal Reef Mineral Resources and Mineral Reserves

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Figure 11-6: Location of Moab Khotsong C Reef Mineral Resources and Mineral Reserves

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11.17Comment on Mineral Resource Estimates

In the opinion of the QP:

•The methodologies applied in estimating the Mineral Resource are based are well established;

•there is no known geological data that was not used that could materially influence the estimated quantity and quality of the Mineral Resource;

•there is no obvious geological, mining, metallurgical, environmental, social, infrastructural, legal and economic factors that could have a significant effect on the prospects of any possible exploration target or deposit; and

•the model for the Mineral Resource estimate is sound and it was not deemed necessary to consider alternative interpretations for the current Mineral Resource Statement.

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12Mineral Reserve Estimate

Section 229.601(b)(96) (12) (i-iv)

The Mineral Resources are derived through a business planning process and consideration by the Chief Operating Decision-Maker (“CODM”). The business planning process comprises multi-functional reviews inclusive of all mining, support and service departments that are involved in the verification of the Modifying Factors and other inputs. The CODM consists of various executive roles and responsibilities. These executives assess the profitability, the revenue and production costs. The CODM also considers capital expenditure, gold production and tonnes milled when assessing the overall economic sustainability.

12.1Key Assumptions, Parameters, and Methods used to Estimate the Mineral Reserve

The results and assumptions derived from the business planning process extends over an [18-month] period. The planning process carefully considers strategic plan directives; analysis of historical performance; realistic productivity, and cost parameters; Modifying Factors; and technical and economic studies that have demonstrated justified extraction, as applicable to specific portions of the Mineral Reserves.

The Mineral Reserves are considered based on several factors, including:

•the latest geological structure and associated Mineral Resource estimation models that constrain the layout for the mine design and LOM planning;

•the use of only Measured and Indicated Mineral Resources to derive the Mineral Reserves;

•the need for regional rock engineering stability pillars which are used for mining and geological support;

•the extent, or lack thereof, of pillar mining, mining of remnant areas, reclamation of broken ore out of old areas, tailings, or any other sources;

•the mining method in use at Moab Khotsong, taking into account the mining and rock engineering design guidelines (Section 13); and

•the sources of dilution and other relevant Modifying Factors.

The Mineral Resources form the basis of identifying the mineable areas. These mineable areas are then designed and scheduled, as per the design parameters and layout, using DeswikTM (Version 3). The Modifying Factors are then incorporated in order attain the Mineral Reserve estimate.

12.2Modifying Factors

A summary of the Modifying Factors that were applied in the conversion of Mineral Resources to Mineral Reserves for Moab Khotsong is presented in Table 12-1. The Modifying Factors are based on an analysis of 24-months of actual data, modified to take into account changes in future strategies as appropriate.

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Table 12-1: Moab Khotsong Mineral Reserves Modifying Factors (30 June 2022)

Modifying Factor	Unit	Moab Khotsong	Zaaiplaats	Great Noligwa Shaft Pillars
Relative Density	t/m³	2.78t/m³	2.78t/m³	2.78t/m³
Stoping width	cm	170.0cm	154.0cm	169.0cm
Gully	%	10.10%	10.10%	12.35%
Off Reef	%	16.76%	12.00%	22.30%
Waste to Reef	%	14.35%	0.00%	60.54%
Flushing tons	%	1.54%	3.15%	0.00%
Discrepancy	%	20.18%	18.70%	20.18%
Mine Call Factor	%	69.00%	78.00%	69.00%
Plant Recover Factor	%	96.92%	96.50%	96.92%
Mine Recover Factor	%	66.89%	75.27%	66.89%
Plant Call Factor	%	103.00%	100.00%	103.00%
Mineral Reserve cut-off	cmg/t	1 800	1 800	1 200

Plant recovery, as shown in Table 12-1, is also consistent with the processing and recovery methods as defined in Section 14.

12.3Mineral Reserve Estimate

The Mineral Reserves were originally prepared, classified and reported according to SAMREC, 2016. For the purposes of this TRS, the Mineral Reserves have been classified in accordance with § 229.1302(d)(1)(iii)(A) (Item 1302(d)(1)(iii)(A) of Regulation S-K).

The reported Mineral Reserves, as at 30 June 2021, are declared as delivered to the plant, except for the recovered gold content. This gold content is calculated after factoring in the plant recovery as a Modifying Factor. The Mineral Reserve estimate for Moab Khotsong is summarised in Table 12-2. The location and classification of Mineral Reserve is presented in Figure 11-5 and Figure 11-6. The Qualified Person responsible for the estimate is Ms LB Freese, Ore Reserve Manager, and Harmony employee.

Table 12-2: Summary Moab Khotsong Mineral Reserve Estimate (30 June 2022) 1 - 5

METRIC
Mineral Reserve Category	Tonnes (Mt)	Gold Grade (g/t)	Gold Content (kg)
Proved	2.690	7.48	20,117
Probable	11.984	8.78	105,250
Total (Proved + Probable)	14.675	8.54	125,367
IMPERIAL
Mineral Reserve Category	Milled Tonnes (Mt)	Gold Grade (oz/t)	Gold Content (Moz)
Proved	2.966	0.218	0.647
Probable	13.211	0.256	3.384
Total (Proved + Probable)	16.176	0.249	4.031
Notes:
1. The Mineral Reserves were originally prepared, classified and reported according to SAMREC, 2016. For the purposes of this TRS, the Mineral Reserves have been classified in accordance with § 229.1302(d)(1)(iii)(A) (Item 1302(d)(1)(iii)(A) of Regulation S-K). The Qualified Person responsible for the estimate is LB. Freese, who is the Ore Reserve Manager, and who is a Harmony employee.
2. Tonnes, grade, and gold content (oz) are declared as net delivered to the mills.
3. Gold content (kg) is recovered gold content after taking into consideration the Modifying Factors.
4. Recovered gold (kg) is based on a conversion factor of 32.157oz/kg.
5. Mineral Reserves are reported using a cut-off grade of 1,800cmg/t determined using a gold price of USD1,546/oz gold.

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12.4Mineral Reserve Reconciliation

The declared Mineral Reserve decreased from 4.245Moz as at 30 June 2021 to 4.031Moz as at 30 June 2022. The key variances are shown in Figure 12-1 and are noted as follows:

•depletion;

•the addition of Zaaiplaats Mineral Reserves;

•changes due to grade, and

•changes due to Modifying Factors.

12.5Commentary on Mineral Reserve Estimate

The Mineral Reserve estimates at Moab Khotsong are informed by a business planning process and take into consideration all the necessary Modifying Factors. The mine is currently mining profitably, and the Mineral Reserve estimates are supported by an economic analysis which indicates positive cash flows.

Any by-products that are recovered as part of the refining process, make up an immaterial component of the total metal inventory, and is thus not reported as part of the Mineral Reserve estimate. There are no obvious material risks that could have significant effect on the Mineral Reserves.

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Figure 12-1: Graph of Moab Khotsong Mineral Reserve Reconciliation

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13Mining Method

Section 229.601(b)(96) (13) (i-v)

The tabular nature of the orebody, along with its depth and structural complexity, dictates the mining method employed at Moab Khotsong. The primary mining method used at Moab Khotsong is conventional breast mining, on a scattered grid. This method, as opposed to the Sequential Grid Mining (“SGM”), is necessitated by the complex geology at Moab Khotsong, which prevents the implementation of a strict mining sequence. Moab Khotsong makes extensive use of backfill for the support of stopes. The economic reef horizons of Top and Middle Mine are exploited between depths of 1,698m and 3,054m below surface.

Zaaiplaats is located between the elevations of 3,054m and 3,526m below surface. Zaaiplaats will be accessed by declines from the northeastern end of the Zaaiplaats property to take advantage of the existing access development in place

13.1Mining Operations

The Vaal Reef is extracted at both Great Noligwa and Moab Khotsong, whilst the C Reef is only extracted at Moab Khotsong. The latter represents only 5% of the Moab Khotsong production.

Moab Khotsong Mine has a single vertical shaft. Great Noligwa Mine has a twin vertical shaft and a dedicated ore processing plant. The Great Noligwa Shaft Pillar is accessed through Great Noligwa shaft, Middle and Top Mine is accessed through Moab Khotsong shaft and Zaaiplaats will be accessed through a decline system from the base of the Moab Khotsong shaft.

The Zaaiplaats Mineral Reserves are situated below the existing infrastructure. These Mineral Reserves will be accessed through declines from 101 Level at Moab Khotsong mine, to take advantage of existing development in that area. The ore will be extracted via the Moab Khotsong shaft. The assumptions regarding the mining operations for Zaaiplaats are supported by a Feasibility Study, completed by Harmony in 2021.

All ore is transported to the Noligwa Plant where it is processed.

13.1.1Scattered Mining

The primary mining method used at Moab Khotsong is conventional breast mining, on a scattered grid (“Scattered Mining”). This method, as opposed to the SGM, practiced at many of Harmony’s other deep level operations, is necessitated by the complex geology at Moab Khotsong, which prevents the implementation of a strict mining sequence. Moab Khotsong makes extensive use of backfill for the support of stopes.

The Scattered Mining makes use of pillars with a pre-developed grid of tunnels, aimed at providing geological information ahead of the mining face, in order to control geotechnical stress. The Geotechnical Engineering department provides detailed numerical modelling and guidance regarding the best mining practices to be applied to minimize the risk associated with seismicity. An example of the mining sequence used at Moab Khotsong is shown in Figure 13-1.

Development for the Scattered Mining at Moab Khotsong is predominantly in the footwall and the access haulages are typically positioned 100m to 120m below the reef plane. Primary development is done off-reef (in waste rock), while secondary development is done on-reef (in the mineralised zone). In primary development, horizontal haulages are developed from the vertical shaft, extending to the extremities of the mining level. The inter-level spacing, which is the perpendicular distance between two consecutive level stations underground, is typically 90m. Further development is done at defined intervals along the haulages, towards the mineralised zones, in the form of crosscuts. For secondary development, an inclined excavation that connects two levels is established, referred to a raise or winze depending on the upwards or downwards direction of the development. A schematic layout is provided in Figure 13-2.

Haulages, crosscuts and raises are pre-developed on a grid system and raises are typically spaced approximately 130-180m apart. The presence of large geological structures within the raise line can influence these footwall development positions. A plan view of a typical footwall crosscut is shown in Figure 13-2.

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Figure 13-1: Plan Showing the Mining Sequence and LOM Extents at Moab Khotsong

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Figure 13-2: Plan view of a Typical Footwall Crosscut at Moab Khotsong

Figure 13-3: Cross Section of the Development Blueprint at Moab Khotsong

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A cross section view of the blueprint for inclined secondary development is depicted in Figure 13-3. This is used to access the reef contact and is advanced from the position of respective crosscuts. Ore is extracted from stoping panels established from the inclined development. The typical stoping panel dimensions are a panel length of 25m and a stoping width of 1.70m for the Vaal Reef.

13.1.2Shaft Pillar Extraction

The extraction of portions of the Great Noligwa mine shaft pillar is included in the LOM Plan for Moab Khotsong. A shaft pillar is an un-mined area, surrounding the vertical shaft system, which was left un-mined in order to protect the shaft infrastructure from geotechnical stresses, during mining operations. It is common practice within South African gold mines for a portion of the shaft pillar to be extracted, usually towards the end of a mine’s life.

The thickness and orientation of the Vaal Reef in the shaft pillar is the same as in other parts of Moab Khotsong, and so the mining approach, mining method and mine designs discussed in this chapter are broadly applicable to the shaft extraction process. Particular attention is given to the monitoring of the geotechnical aspects of the mining operations during shaft extraction.

13.2Mine Design

The mine design strategy aims at maximising the safe extraction of ore, while minimising the risk of geotechnical failures, which can result in operational disruptions and dangerous working conditions. The most critical parameter that varies in mining is the geology of the area. The Vaal Reef has been subject to faulting and intrusions by igneous dykes and sills that cut across the reefs. The most significant form of control at Moab Khotsong for rockfalls and rock bursts is the backfill support. Backfill is considered a regional support system. Ledged raises are supported by a combination of packs and backfill ribs, which keeps the central raise line much more stable during the stoping operations.

The occurrence of geological faults may lead to production delays, geotechnical risks, and the potential of flooding. Depending on the geology of the dyke or sill, a change in the mining direction may be required, or as in the case of low-risk scenarios the Rock Engineering department may suggest a safety and support strategy to mitigate the associated geotechnical risk. A change in mining direction may result in Mineral Resource losses, or an increase in dilution.

A mine design that is sufficiently informed, with geological data, is progressed to the mine planning phase. Mine planning is done on a macro scale as well as on a micro scale. On a macro scale, a regional cut-off grade is applied and the material below cut-off is excluded from the mining model. On a micro scale, the mining model is then subject to constraints that are applied because of the geotechnical design and other limitations.

13.2.1Mine Design Parameters

Mine design is undertaken using DeswikTM software (Version 3) and includes the delineation of mining areas for each mining level and section, usually leading from an extension of the existing mining sequence, and the definition of the necessary development layouts. The mine design includes bracket pillars on either side of geological features, which are 5m pillars if the features overlie stopes and the dip does not exceed 70°, or 10m pillars if the dip exceeds 70° or the feature extends above or beneath a stope. The mine design parameters used are shown in Table 13-1.

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Table 13-1: Key Mine Design Parameters

Parameter	Unit	Value
Regional Stability
Dip Stabilizing Pillar Dimensions
Strike Span	m	170
Dip Span	m	N/A
Strike Stability Pillar Spacing¹	m	30
Access Haulages Middling to Reef	m	70
Primary Development
Advance	m/month	24
Secondary Development
Advance	m/month	18
Economic Parameters
Cut-off Grade (planning)	cmg/t	1,800
Notes: 1. Pillar spacing is measured skin to skin.

13.3Mine Plan Development and Life of Mine (“LOM”) Schedule

The mining method at Moab Khotsong is dependent on development staying ahead of the mining front, so that accurate geological information is gathered and included in final designs before mining commences. This also enables planning and scheduling activities to be accurately sequenced, which leads to better planning, safer working conditions, and improved profitability.

The LOM plan and scheduling starts with the use of the planning model, which is modelled at a cut-off grade of 1,800 cmg/t. The mining rates used in determining the LOM plan are based on the current and expected operational performance, notwithstanding any unforeseen underground mining constraints. The remaining LOM for the operation is planned for 22 years up to 2044, with a planned mining rate averaging at approximately 800ktpa (milled tons) over the LOM period. The extent of the Moab Khotsong LOM plan is shown in Figure 13-1. The combined forecasted tonnages and gold produced for the LOM of Moab Khotsong is shown in Figure 13-4 and Figure 13-5, respectively.

13.4Geotechnical and Geohydrological Considerations

Apart from the geotechnical risks that can be caused by the existence of geological structures and the presence of water and gas, there is also a seismicity risk at Moab Khotsong due to the depth of the mining operations. Moab Khotsong maintains a network of seismic and geohydrological monitoring points and a dynamic geotechnical model which takes the latest geological structural model and the selected mining method into account to design a suitable mining layouts.

Detailed geotechnical design recommendations are provided for development, ledging, stoping and pillar extraction activities. The geotechnical design recommendations include, amongst others:

•safe distances between development and potentially active geological features,

•middling distances between development tunnels or between development and stoping operations;

•the design of incline development infrastructure such as travellingways and boxholes;

•priority areas for mining during ledging operations;

•mining direction with respect to potentially active geological features;

•bracket pillar dimensions against geological structures; and

•the safe abandonment and removal from the Mineral Reserve of un-mined areas adjacent to potentially seismically active geological features.

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Figure 13-4: Graph of Moab Khotsong LOM Plan - Ore Milled

Figure 13-5: Graph of Moab Khotsong LOM Plan – Gold Produced (kg)

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The dynamic geotechnical model is also used to manage and monitor the occurrence of ground water and gas intersections at the mine. Moab Khotsong, like most deep level operations, does encountered water-bearing fissures and faults, as well as methane. There is always some risk associated with flooding and gas explosions at the mine, in the event of an unforeseen influx of uncontrolled water or gas, from within the mining operations or from neighbouring mining operations.

Flooding from the redundant mines adjacent to Moab Khotsong operations is a risk that is being effectively mitigated through pumping from Moab Khotsong’s Great Noligwa Shaft. The regional flooding risk is being managed collectively by Margaret Water Company, Harmony and Village Main Reef Mines (“VMR”).

Mine water from several neighbouring mines flows in at Great Noligwa’s 74 Level and accumulates in a 2km dewatering dam at 74/76 level. Water is then allowed to gravitate down to 76 Level, in a controlled manner, through 450mm columns into the 78 Level dewatering dams. The water is then pumped to surface through the 78 Level pump station. This water is used by the processing plant. Water levels and influx is monitored on a 24-hour basis by the control room, and the pumping system is automated and operated from surface.

Cover drilling is also done ahead of development to identify water and gas intersections in advance. Apart from drilling, water is also identified during primary and secondary development. In the event of major water intersections, a water sealing plan is initiated. Most of the mining areas have been sealed off, and in some cases hoses and pipes are installed which diverts water to sumps, to be eventually pumped out to surface.

13.5Dilution and Grade Control

Grade control takes place from the exploration phase through the sampling of drill core, to sampling of excavations (which concentrates on solid ore grades) to broken ore grade control, which focusses on tonnage and grade estimation of the ore flow from the blasted stope to the delivery to the plant.

The Mine Surveyors measure stopes on a monthly basis. The Mine Surveyors are accompanied by Grade Control Officers, who assess the extent to which blasted material has been cleaned from the stope and identify any tonnage lock-ups. Follow up checks are done on previously identified and reported lock-ups, off-reef mining and areas where reef has been left in the footwall or hanging wall.

On the monthly measuring day, all relevant information is extracted electronically in order for the necessary adjustments to be made to the grade and tonnage calculations.

13.6Ore transport

The blasted ore from the stoping panels is moved with winch-operated scrapers along gullies to ore passes where it gravitates down to the loading boxes in the footwall cross-cuts below the stopes. Broken rock handling is track-bound, and ore is transferred via several inter level sub-vertical transfer systems that gravity feed to the main silos on 77 Level or 103 level.

Separate streams are used for waste rock and gold bearing ore in Middle Mine and the future Zaaiplaats. Most of the waste rock is separated from reef ore underground and accounted for separately. Top Mine waste rock does not have separate streams and is hoisted with gold bearing ore.

The waste and reef rock is hoisted separately to surface through the main shaft onto separate belts. The waste and reef rock converges at the rail silo and is transported to the Great Noligwa Plant via rail.

13.7Mining Equipment and Machinery

Development and stoping operations at Moab Khotsong require the following equipment:

•haulages and associated development require hydro-powered (“HPE”) drill rigs for underground excavations and tunnelling;

•production drilling in stopes requires compressed air hand-held drills;

•raise boring drill rigs are used for the development of ventilation connections and ore passes; and

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•ore from the stoping ore passes is loaded directly into hoppers from box-front chutes. Waste rock from development operations is loaded into similar hoppers and both ore and waste is trammed to the shafts.

13.8Mining Personnel

Moab Khotsong mining operations are labour intensive. The mine is supported by approximately 5,800 mine-employed personnel and approximately 2,700 labour personnel are in direct production. The underground mining operations uses an 11-hour shift system, operating a 2-shift cycle per day. The mining personnel operating on this shift cycle, comprise of workers performing development, stoping, and other additional tasks. These personnel are sub-divided and organised into support, breaking (also referred to as drill and blast crew), and cleaning crews.

The supporting and breaking crew complete tasks during the day shift, while cleaning is done during the night shift. A development crew is responsible for one development end at a time. Moab Khotsong plans to achieve an average of approximately 240m2/crew/month.

13.9Commentary on Mining Method

The majority of the mining at Moab Khotsong utilises the Scattered Mining method, with backfill support. This mining method has been extensively used and is well suited to the relatively complex geological structure.

The mine design, planning and scheduling for the mine is developed using DeswikTM (Version 3) software, considering the geotechnical model and related parameters. The main geotechnical and geohydrological risks at Moab Khotsong include the presence of gas, ground water and seismicity, which are managed through the integrated monitoring systems, and incorporated into working mining models that inform daily mine planning decision-making. Extensive geotechnical recommendations are included in the mine design for development, ledging and stoping operations.

The mining rates, machinery and equipment, ore transport, grade and dilution control and labour resourcing are driven by the mine schedule and are within existing operating limits or are supported by a Feasibility Study.

The mining parameters and associated risks for Moab Khotsong are well understood, and risk mitigation measures are put in place.

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14Processing and Recovery Methods

Section 229.601(b)(96) (14) (i-iv)

The gold processing facility at Great Noligwa has been in operation since the 1960s and is hence a well-established operation. The technology used to process the gold-bearing ore is well established, being used across the majority of South African gold operations and suitable for the style of mineralisation.

14.1Mineral Processing Description

All ore mined at Moab Khotsong Operations is treated and smelted at the Great Noligwa Plant. The ore which is mined at Moab Khotsong mine is transported to Great Noligwa by rail, while a conveyor belt system is in place between the Great Noligwa shaft and the Great Noligwa Plant. The process flow for Great Noligwa Plant is presented in Figure 14-1.

The material from the different ore sources is milled and thickened at the Great Noligwa Plant. The slurry is pumped to the South Uranium Plant where the uranium is extracted. This involves the leaching of uranium by sulphuric acid and manganese dioxide. After the uranium has been leached, the thickened slurry, from the counter-current decantation section, is pumped back to Great Noligwa Plant for gold extraction. The uranium concentration continues inside the South Uranium Plant by steps including ion exchange, solvent extraction and precipitation. The final product (Ammonium Di-Uranate) from the uranium plant is dispatched and transported by road for calcination at Nuclear Fuel Corporation of South Africa (“NUFCOR”) uranium refinery, situated in Westonaria. The Uranium Oxide is finally transported to convertors in Canada and the USA.

A conventional gold leach process (cyanidation) follows, incorporating liquid oxygen injection and control of pH through the addition of lime, is applied. The cyanidation process is one of the most utilised methods for the recovery of gold from auriferous ores. The use of cyanide leaching for gold recovery is based on gold’s properties, mainly its solubility (ability to dissolve) in cyanide solutions.

Once the gold is dissolved into the cyanide solution it has a higher ability to attach onto activated carbon through the application of carbon in pulp (“CIP”) technology. In the CIP tanks, a carbon and slime mixture is pumped counter-current flow, with the carbon becoming increasingly “loaded” with gold.

The loaded carbon then enters the elution columns, which are high pressure vessels that circulate the loaded carbon extracting the gold. The gold will “deabsorb” from the activated carbon and attach onto stainless-steel wool by means of electrowinning. The CIP circuit makes use of gravity flow of slime between the consecutive counter-flow stages in order to recover recirculate the activated carbon back into the system. Following this process, the cathode steel wool is smelted after drying in the calcining ovens. The gold doré is then dispatched to Rand Refinery (Pty) Limited for final refining, with silver as a by-product.

14.2Plant Throughput, Design, Equipment Characteristics and Specifications

The milled ore follows a standard cyanide leach, CIP and electrowinning process in order to extract the gold bullion. The current plant capacity is 260ktpm, or daily treatment rate of approximately 9,420tpd at 92% availability (Table 14-1).

The plant is operating below its designed throughput capacity, as shown in Table 14-2, and has the potential to process the additional ore planned from Zaaiplaats.

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Figure 14-1: Schematic Flow Diagram of the Metallurgical Process

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Table 14-1: Key Equipment Specifications at Great Noligwa Gold Plant

Equipment	Unit	Capacity
Mill Silo (per silo – 3 silos)	Volume / silo (m3)	2,900
	Tonnes	4,500
ROM Mill (per mill – 3 mills)	Volume / tank (m3)	355
Leach (10 leach tanks)	Dry Tonnes / tank	825
CIP (8 tanks)	Volume / tank (m3)	749
	Dry Tonnes / tank (t)	1,000
Acid Wash (per tank - 2 tanks)	Volume / tank (m3)	36
	Carbon (t)	12
	Cycle time (hr)	2
Elution (per tank - 2 tanks)	Volume / tank (m3)	30
	Carbon (t)	12
	Cycle time (hr)	24
Thickener (- 2 thickeners)	Volume / thickener 1 (m3)	6,400
	Volume / thickener 2 (m3)	3,000
	Dry Tonnes (t)	4,000

Table 14-2: Design Throughput Versus Actual Throughput at Great Noligwa Gold Plant

	Throughput
Equipment	Design (t/hr)	Actual (t/hr)
Mill	200	190
Leach	350	180
CIP	350	180
Thickener	350	180

The cyanide leach is an intricate balance of time, pH and oxygen sparging. These parameters have been determined with metallurgical test work and historical performance to optimise the recovery. The parameters used in this process are set out in Table 14-3.

Table 14-3: Leaching Process Material and Properties

Process Requirements	Properties
pH	10.5 - 11.5 (controlled by lime addition)
Cyanide	180 - 300 ppm as 100% NaCN
Leaching Time	24 – 40 hours
Oxygen	Air or oxygen sparged, 5 - 25 ppm O2
Cyanide Relative Density	1.38 - 1.45, 40-50% solids at SG 2.7

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14.3Energy, Water, Process Material and Personnel Requirements

14.3.1Energy

The Great Noligwa Plant requires approximately 112GWh of electricity per annum. This is supplied by Eskom.

14.3.2Water

The Great Noligwa Plant requires approximately 1,000Ml of water per annum, which includes both potable and process water. The operation has an established and secure water supply, which is sufficient for the requirements of the LOM Plan.

14.3.3Process Material

The reagents and their consumption rates are presented in Table 14-4.

Table 14-4: Consumables

Consumable	Unit	Value
Lime	tpm	77.0
Flocculant	tpm	4.0
Cyanide	tpm	45.0
Carbon	tpm	8.7

14.3.4Personnel

The Great Noligwa Plant is appropriately staffed for the required tonnage throughput, having a compliment of 188 people.

14.4Commentary on the Processing and Recovery Methods

The Great Noligwa Gold Plant has been in operation since 1972 and, as such, the processing method is considered well established for the style of mineralisation processed. The plant makes use of historical trends and data as a basis for the forecast processing parameters, except for instances where projects are planned for optimisation, for which appropriate test work is done.

The recoveries used in the business plan are based on historical performance. The methodology applied considered the historical metallurgical recovery (18-month period) for the relevant ore source. The actual monthly head grades were reviewed and the relationship between the head grade and recovery were used as base for the 2021/22 Business Plan metallurgical recoveries, taking into consideration the relevant forecast head grades (Figure 14-2).

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Figure 14-2: Graph of Historical Recovery (18 month actual)

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15Infrastructure

Section 229.601(b)(96) (15)

Moab Khotsong is an established operation and all of its surface and underground infrastructure are sufficient for the Middle Mine and Top Mine LOM requirements.

Zaaiplaats commenced with development on 101 Level after Board approval in 2021.

15.1Surface Infrastructure

The infrastructural layout includes hoisting facilities; logistical support for core handling, sampling, and transporting; the processing plant; waste rock facilities; tailings and leaching infrastructure; roads; water and power supply; ventilation and refrigeration systems; stores and workshop support; electrical supply; offices; housing and security. The location of the surface infrastructure is presented in Figure 15-1. The location of the surface infrastructure related specifically to Great Noligwa is presented as a Google Earth image in Figure 15-2, whilst that for Moab Khotsong Middle Mine is presented in Figure 15-3.

15.1.1Ore and Waste Rock Storage Facilities

The waste and reef rock is hoisted separately to surface through the Moab Khotsong main shaft onto separate belts. The waste and reef rock converges at the rail silo and is transported to the Noligwa Plant via rail (Figure 15 1 and Figure 15 2). Ore is stored in a run of mine (“ROM”) silo located at the plant.

There is a waste rock dump facility (“WRD”) located adjacent to the Moab Khotsong shaft which is currently not being used for deposition. The WRD is being reworked through the Noligwa and Mispah plants (Figure 15-1). The WRD dump facility will be utilized in later years as directed by the Zaaiplaats waste development and plant requirements.

15.1.2Tailings Storage Facilities

The tailings storage facility (“TSF”) for the Great Noligwa plant’s waste is located approximately 5km to the south of the plant. The TSF is currently active and is owned and operated by Moab Khotsong.

The TSF site has full engineering records including design, construction, operation, and maintenance plans. The design height for Mispah Dam 1 is 68m and for Mispah Dam 2 is 50m and is engineered in an upstream raising method. The designed volume for Mispah Dam 1 is 83Mm3 and for Mispah Dam 2 is 15.7Mm3 and at the current deposition rate, it is estimated that the TSF will be able to service the needs of the combined production from the Moab Khotsong operations until 2040.

A closure plan, typically extending over a 2-year period, to assess the TSF against the impact of extreme weather events because of climate change is also in place. In 2017, signs of distress were noted along the western embankment of Mispah Dam 1. Cracks extended diagonally up and parallel to the slope and increased with time. Bulging was observed at the toe. Deposition on the facility was halted immediately and detailed surveillance was implemented. An investigation ensued to determine the cause and understand the mechanism for the observed TSF behaviour. Possible mechanisms were identified and assessed. It was concluded that yielding of the underlying rock, in turn underlain by highly compressible strata, was the most plausible mechanism. The way forward included assessment of the available geological information to determine if similar conditions exist elsewhere along the TSF embankments. Mitigation and remedial measures were compiled and implemented to restore the TSF to an acceptable and safe condition and the facility was recommissioned in March 2019. Close monitoring of the TSF continues with no further signs of distress observed to date.

The TSF adheres to the SANS 10286 governed classification system and is monitored by internal engineers, supported by external engineering specialists.

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Figure 15-1: Moab Khotsong Surface Mine Layout and Infrastructure

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Figure 15-2: Great Noligwa Mine Surface Infrastructure

Source: Google Earth (Image Date: June 2021)

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Figure 15-3: Moab Khotsong Mine Surface Infrastructure

Source: Google Earth

(Image Date: June 2021)

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15.1.3Power and Electrical

Moab Khotsong’s power supply is designed to satisfy the planned LOM production and service requirements. The main power supply is managed and distributed via electrical sub-stations located on site. Total annual electrical consumption is in the order of 757GWh.

15.1.4Water Usage

Total water consumption for Moab Khotsong is in the order of 6,191Ml.

15.2Underground Infrastructure and Shafts

Moab Khotsong utilises the Great Noligwa twin shaft and Moab Khotsong twin shaft. The underground infrastructure is schematically depicted in Figure 15-4, along with the linkages between the shaft systems.

15.2.1Great Noligwa

Great Noligwa’s shaft collar is situated approximately 522m BMD and the vertical shaft system comprises a Main Shaft and Vent Shaft with diameters of 10.5m (Figure 15-4). Both have supporting sub-shafts. The sub-shafts extend from 50 Level to the shaft bottom.

The shaft bottom at Great Noligwa is 2,965m BMD, however, the lowest levels are no longer used, as production from this shaft system is focused on the extraction of the Vaal Reef shaft pillar, which is between 70 Level and 73 Level, or approximately 2,750m BMD. Accessing the shaft pillar requires only limited development, as the mining areas are within a radius of 460m of the shafts.

Men and material are moved separately using tramming. Underground broken rock handling is track-bound via locomotive material cars. These movements are supported by traffic management systems, including control room monitoring and logistics control. Rock is transferred via gravity feed to the main silo infrastructure, located on 80 Level. Rock from 80 Level silos is transferred to surface by means of the sub-shaft and vertical shaft systems.

15.2.2Moab Khotsong

Moab Khotsong’s shaft collar is situated 519m BMD. The vertical shaft system comprises a Main Shaft, which extends from surface to the shaft bottom at 3,649m BMD, or 103 Level (Figure 15-4). In addition, a sub shaft for rock and ventilation, the RV Shaft, extends from 73 Level to 103 Level.

The Middle Mine LOM plan is located between 2,600m and 3,054m below surface (3,118m and 3,572m BMD). These are accessed through development from 85 Level to 101 Level.

Men and material are moved separately using tramming. Underground broken rock handling is track-bound via locomotive material cars. These movements are supported by traffic management systems, including control room monitoring and logistics control. For the Middle Mine areas, Rock is transferred via gravity feed to the main silo infrastructure, located on 103 Level. Rock from the 103 Level silos is transferred to surface by means of the Main Shaft hoisting infrastructure; alternatively, it can be hoisted to 76 Level in the RV Shaft and transferred by rail to Great Noligwa Mine to be hoisted.

15.2.3Zaaiplaats

The Zaaiplaats LOM is situated below the current mining infrastructure, between 3,054m and 3,526m below surface (3,573m and 4,045m BMD). These will be mined from 101 Level to 114 Level. Accessing the LOM will require the development of declines from the southwest end of 101 Level.

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Figure 15-4: Great Noligwa and Moab Khotsong’s Mine Shaft and Underground Infrastructure

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15.3Commentary on Infrastructure

The operational infrastructure including road, rail, offices, security services, water and power supply is adequate, and is shared with the Harmony operations in the relevant areas. Overall, Moab Khotsong is well-established with sufficient logistical and infrastructure support for the existing and planned mining operations, although Zaaiplaats will require additional underground infrastructure to access this LOM.

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16Market Studies

Section 229.601(b)(96) (16) (i-ii)

Gold is traded in a variety of markets/exchanges both in physical form through Over the Counter (“OTC”) markets, bullion banks and metal exchanges etc., and through passive investments such as exchange traded funds (“ETF’s”), which are based on gold prices and units representing physical gold which may be in paper or dematerialised form. Demand is driven by the jewellery market, bar and coin, use in technology, ETF’s and other financial products, and by central banks. An overview of the gold market is given in the following sections based mainly on data from the World Gold Council and GoldHub websites.

16.1Market Overview

Unlike almost all mineral commodities, the gold market does not respond the same way to typical supply and demand dynamics which are founded on availability and consumption, but rather on global economic affairs, particular those of the major nations, industrial powerhouses and economic regions, such as the Eurozone. The gold market is affected by government and central bank policies, changes in interest rates, inflationary or deflationary environments and events such as stocking and de-stocking of central reserves. It is also largely affected by global events such as financial crises, geopolitical trade tensions and other geopolitical risks. Price performance is linked to global uncertainty prompted by the prolonged Russia-Ukraine war (GoldHub, Accessed July 2022). It is an asset that can preserve wealth and deliver price outperformance in an uncorrelated way and that makes it extremely attractive.

16.1.1New Mine Production

Gold mining is a global business with operations on every continent, except Antarctica, and gold is extracted from mines of widely varying types and scale. China was the largest producer in the world in 2021 and accounted for around 9-12% of total global production (Gold.org, Accessed 2022; USGS Mineral Commodity Summaries, 2022). Overall, global mine production was 3,000t in 2021, slightly lower than production levels in 2020 (3,030t), and the second annual decline in production after 2016. Recent decline has been largely attributable to COVID-19 interruptions. In 2021, the major producing gold countries in the world were China (370t), Australia (330t), Russian Federation (300t), USA (180t), Canada (170t), Ghana (130t), Mexico (100t), and Uzbekistan (100t). Indonesia, Peru and Sudan produced 90t each, followed by Brazil (80t). South Africa produced 100t in the same year (USGS Mineral Commodity Summaries, 2022).

16.1.2Recycling

Annual global supply of recycled gold was 1,143.5t in 2021, a decline from the 2020 figure of 1,291.3t. Recycling supply responds to the gold price and its rate of change but experienced a modest increase during the year even as prices increased to all-time highs. India and China play large roles in the recycling market. In the first quarter of 2022, when gold demand was 34% higher than the previous year, the supply of recycled gold increased to 310t (a 15% increase y-o-y), and highest amount of activity for six years (Gold Demand Trends Q1 2022, Gold.org, April 2022).

16.2Global Consumption and Demand

Gold consumer demand is expected to be supported by gradual economic recovery. Gold has performed well as a consequence of a high-risk environment, low interest rates and a high price. While continued improvement in markets is expected post-COVID in 2022, economic slowdown among other factors is anticipated to place some downward pressure on consumer demand in China and India.

16.2.1Jewellery

Global annual jewellery demand increased from 1,329.7t in 2020 to 2,229.4t in 2021, amid a recovery of markets from the COVID-19 pandemic. As with recycling, the two largest markets, India and China, were major contributors to the decline in 2020, and markets were expected to improve with economic recovery in these geographies. In Q1 2022, recovery of demand was soft, down 7% y-o-y, after new lockdowns to contain COVID-19 (Gold Demand Trends Q1 2022, Gold.org, April 2022).

16.2.2Investment

The COVID-19 pandemic, high inflation and recent period of heightened risk and geopolitical uncertainty, has driven the value of gold as a ‘safe haven’ investment (www.gold.org/goldhub). Bar and coin investment was

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20% lower in Q1 2022, but 11% higher than a five-year quarterly average (Gold Demand Trends Q1 2022, Gold.org, April 2022).

A total annual gold investment of 1,006.42t was noted by the World Gold Council for 2021, a decline of 43% from the 2020 figure. Weaker investor interest in 2021 was seen with a net outflow of gold ETFs (-173.6t). Gold demand has since increased in Q12022 (34% higher than Q1 2021), driven by strong ETF inflows, and safe-haven demand (Gold Demand Trends Q1, 2022, Gold.org, April 2022).

Investment drivers also include low interest rates, a weakened US Dollar, and an economic slowdown. A consequentially favourable price means even greater investment, but momentum has slowed with gold reaching a USD 1,800/oz marker (Recent moves in gold, Gold.org, July 2022).

16.2.3Currency

Gold holds an inverse relationship with the USD and is usually traded relative to its USD price. During the current period of uncertainty, and the rising influence of Chinese currency, central bank asset managers may likely increase their interest in gold as a result. This has been a prominent trend since the economic downturn in 2008.

Future performance of the gold market is expected to be supported by investment demand (a need for effective hedges and a low-rate environment) and will be driven by the level of risk observed in the recovery of the global economy from the effects of COVID-19, which may offset any lag in recovery of consumer demand.

16.3Gold Price

16.3.1Historical Gold Price

In early August 2020, the London Bullion Market Association (“LBMA”) gold price reached historical highs and remained relatively high for the rest of the year (Figure 16-1).

16.3.2Forecast Gold Price

The minimum and maximum consensus gold price range for the year 2021 Q4 to year 2025 is presented in Figure 16 2. The long-term gold prices are considered from year 2025 onwards. Forecasts as advised from various financial institutions show that gold is expected to trade in a range of USD1,652/oz - USD1,728/oz, for the period 2022 to 2025 with a long-term outlook of USD1,521/oz.

The gold price forecast of USD1,546/oz is conservative if corroborated against a long-term broker consensus gold price outlook (Figure 16 2).

16.3.3Harmony Group Gold Hedging Policy

Harmony has a hedging policy which is managed and executed at Group treasury level on-behalf of its operating entities. The key features of the hedging programme are as follows:

•the policy provides for hedging (or forward selling) up to a maximum of 20% of expected gold production for a rolling 24-month period;

•the policy has no minimum quantity that should be hedged, and if an attractive margin above cost cannot be achieved (i.e., in a low gold price environment) then no hedges are entered into;

•Harmony enters into ZAR-denominated gold hedges for its South African operations (for the non-South African assets it enters into USD-denominated hedges);

•Moab Khotsong does not enter into hedges in its own name but delivers bullion to Rand Refinery for refining on behalf of Harmony. Rand Refinery is one of the world’s largest single-site precious metals refining and smelting complex in the world. Rand Refinery refine all of Harmony’s gold to at least 99.5% purity, and acting as agent, sells the gold on the daily spot London fixing price and make payment to the Harmony two days later;

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•gains and losses realised from the hedging program are accounted for at Group level and the financial benefit (or downside) is distributed amongst the operations proportional to their levels of gold sales; and

•Moab Khotsong does its mine planning and financial forecasts based on the estimated future gold price provided by the Group treasury, but its year-end actual financial results reflect the received gold price inclusive of the benefit of the hedging programme. Therefore, in theory, Moab Khotsong receives a hedged gold price for a maximum of 20% of its gold sales with the balance attracting the spot price.

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UPDATE

Figure 16-1: Graph of Annual Gold Price History – ZAR/kg

Figure 16-2: Graph of Consensus View of Forecast Gold Price

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16.4Commentary on Market Studies

The factors which affect the global gold market are well-documented as are the elements which influence the daily gold price. The gold price recorded all-time highs during both 2020 and 2022, and although it has since moderated and retracted, the price remains well above the 5-year historical average.

The positive outlook for gold will likely be sustained. Key headwinds for gold are interest rate hikes, currently at near historically low levels, but continued geopolitical risk and underperformance of stocks and bonds will support gold (Gold Mid-Year Outlook 2022, Gold.org, Accessed 2022). The gold price has experienced weaker momentum in Q2 2022, but stabilised. The gold market is expected to remain supported, and prices elevated for the balance of the financial year running into FY2023. Harmony has a relatively conservative gold hedging policy in place, and this is used to take advantage of the movements in the gold price to maximise the average gold price received, with the benefit of this hedging programme flowing through to Moab Khotsong.

16.5Material Contracts

Harmony has contractual vendor agreements with various service providers and suppliers. A list of the most significant of these contracts, currently in place to support mining operations at Moab Khotsong, is presented in Table 16-1. All of the listed contracts are currently valid and in good standing. Terms, rates and charges of contracts are considered consistent with industry norms. Contract management processes are in place and resourced so that contracts re-tendered and/or renewed as they approach expiry.

Table 16-1: Material Contracts

Vendor Name	Nature of Service / Supply
T&J Umsebenzi	Underground support services
Lesedi Drilling	Underground diamond drilling
MSP Mine Support Products (Pty) Limited	Steel support
Traxtion Sheltam (Pty) Limited	Railway operations and track maintenance at the Vaal River Operations
AECI Mining Limited	Explosives and accessories
EBJ Matlosana (Pty) Limited	Underground secondary support services
Timrite (Pty) Limited	Supply of timber

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17Environmental Studies, Permitting and Plans, Negotiations, or Agreements with Local Individuals or Groups

Section 229.601(b)(96) (17) (i-vii)

The South African Government has an extensive legal framework within which mining, environmental and social aspects of the industry are managed. Harmony and its Moab Khotsong operation is primarily regulated and managed by certain principal Acts (as listed in Section 17.3) as well as corporate policies, management systems and certain industry-wide guidelines, including:

•Energy Efficiency and Climate Change Policy;

•Environmental Policy;

•Harmony Water Management Strategy;

•Biodiversity and Rehabilitation Position Statement;

•Socio-Economic Transformation Policy; and

•Corporate Social Responsibility Policy.

The latest sustainability policies and public environmental social and governance (“ESG”) performance and disclosure reports are available on the corporate website. Harmony has identified the environmental risks for the business and has strategies in place to manage the risks.

17.1Results of Environmental Studies

Moab Khotsong has prepared multiple Environmental Impact Assessments (“EIA”) for regulatory approval, which under the current legal framework, require stakeholder engagement. The most recent EIA was undertaken October 2017. The last assessment was the EIA/ EMPR done when Harmony took over the Moab Khotsong Operations for DMRE approval. “No stakeholder engagement was undertaken for this EMP as all the infrastructure and activities to be acquired has already been authorised in the 2009 AGA EMP, which included a stakeholder engagement process. As no new activities form part of this EMP, no stakeholder engagement was undertaken for this EMP. Details of this is under page 22 of the attached. A comprehensive stakeholder engagement process for the 2009 AGA EMP commenced in August 2007 in order for Interested and Affected Parties (I&APs), authorities and the wider public to comment on the project. Stakeholder engagement was an ongoing process undertaken throughout the 2009 AGA EMP update and revision process. All supporting stakeholder engagement documentation relating to this process was included in the 2009 AGA EMP”.

“No new activities have been included and hence no additional specialist studies or stakeholder engagement were undertaken for this EMP. Specialist study and stakeholder information were obtained from the 2009 and 2016 AGA EMP”.

There are no sensitive areas that may affect the project or any other environmental factors, including interested and affected parties and/or studies that could have a material effect on the likelihood of eventual economic extraction. No material socio-economic and cultural impacts were identified.

Harmony is committed to maintaining good relationships with regulatory authorities, industries, communities, business partners and surrounding stakeholders. A detailed environmental impact register has been developed to identify all potential environmental impact of the operations. The main impacts were rated, and mitigation measures were proposed to minimise their impact on environment.

17.2Waste and Tailings Disposal, Monitoring & Water Management

The process of mining and beneficiation produce significant waste, typically consisting of 1) solid waste in the form of waste rock and overburden, 2) liquid wastes in the form of wastewater and tailings slurry and 3) gaseous emissions such as liquefied petroleum gas.

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Measures have been put in place for the handling and disposal of all hazardous chemicals (e.g., cyanide), hydrocarbons (i.e., hydraulic oils and diesel) and other chemicals to ensure the protection of human health and its potential impact on the environment. Harmony recognises that responsible and effective waste management can positively reduce its environmental impacts and mitigate associated environmental liabilities. Waste management is thus a priority focus area. Internally, guidelines on mineral, non-mineral and hazardous waste materials are included in the environmental management systems (“EMS”) implemented at Moab Khotsong.

Tailings comprises of milled rock and process water emitted from the gold elution process in the form of slurry. As tailings contain impurities and pollutants, they are placed in TSF engineered to contain them, in line with Harmony's tailings management programme and the Global Industry Standard on Tailings Management (“GISTM”).

Harmony's overall tailings management strategy is to ensure robust, meticulous engineering and dam design, along with a continual focus on management of risks through layered assurance and oversight. The focus areas include, but are not limited to:

•freeboard control;

•water management;

•maintaining stability and the safety factor as advised by the engineer of record;

•erosion controls; and

•monitoring and control measures implemented to ensure continued compliance (including regular inspections, audits, and meetings on varying intervals with subsequent actions, minutes and reports).

As part of its mining, environmental and water approvals and licences, Harmony is required to implement monitoring programmes and plans to establish the operations impact on the environment. The compliance limits for the monitoring variable are included in the applicable EMPR(s), WUL(s) and environmental authorisations. The environmental monitoring implemented at Moab Khotsong includes:

•ground and surface water monitoring

•biodiversity monitoring;

•waste classification and quantification;

•integrated waste and water management plan updates;

•water balance reviews;

•licence and authorisation compliance reviews; and

•air quality (i.e., noise and dust) and greenhouse gas emissions ("GHG") monitoring.

17.3Permitting and Licences

In respect of environment, the following national Acts and the regulations promulgated thereunder provide the regulatory framework for mine permitting and licencing in South Africa:

•Mineral and Petroleum Resources Development Act, 2002 (“MPRDA”);

•National Environmental Management Act, 1998 (“NEMA”);

•National Environmental Management: Waste Act, 2008 (“NEM:WA”);

•National Environmental Management: Air Quality Act, 2004 (“NEM:AQA”); and

•National Water Act, 1998 (“NWA”).

Moab Khotsong has an approved EMPR that formed part of the mining right application and is used as the basis for managing all environmental aspect and impacts at the operation. The operation has all other environmental permits are in place required that cover the environmental, archaeological, waste and hydrological components of the operations. A summary of the status of environmental permits and licences

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issued at the effective date related to Moab Khotsong’s operation is presented in Table 17-1. All permits are audited regularly for compliance and no material risks to the operations have been identified.

In addition, has implemented an EMS that is ISO 14001 certified. As part of its certification and compliance obligations, Moab Khotsong is committed to continually improve its processes and services to prevent pollution, minimise waste, increase carbon efficiency, use natural resources efficiently and protect the environment.

There are no outstanding applications submitted or being considered by the relevant authorities to ensure compliance and alignment with operations LOM requirements. There are no outstanding governmental/statutory requirements and permits as may be required.

Table 17-1: Status of Environmental Permits and Licences

Permit Holder	Permit / Licence	Reference No.	Issued By	Date Granted	Validity
Harmony	EMPR	NW30/5/1/2/2/15&16MR	DMRE	08-Aug-2019	Valid
Harmony	Atmospheric Emission Licence	AEL/FS/MKO- HGM/14/10/2019	DFFE	13-Mar-2019	Valid
Harmony	Waste Management Licence	NWP/DK2/WM/ 2018/04/01/02	DARD	21-Jan-2021	Valid
Harmony	Water Use Licence	08/C24B/AGJ/9799	DWS	12-Nov-2020	Valid

17.4Local Stakeholder Plans and Agreements

Harmony strives to create sustainable shared value within the communities it operates. Local stakeholder plans and agreements are based on the results from socio-economic information, government development strategies and EIAs undertaken. The socio-economic development programme commits to:

•contribute to areas that will have the most meaningful socioeconomic impact on communities, namely infrastructure, education and skills development, job creation and entrepreneurial development;

•enhance broad-based local and community economic empowerment and enterprise development initiatives;

•facilitate socio-economic development in local communities by means of social and labour plan(s) (“SLP”) and corporate social responsibility programmes;

•support arts, culture, and sports and recreation; and

•build relationships based on trust within host communities.

In South Africa, mining companies are required to have a SLP which forms an important component of Harmony's community investment plan. It sets out the Company’s obligation to develop and implement comprehensive human resource development programs, community development plans, housing and living condition plans and employment equity plans.

The ultimate aim of the SLP is to ensure the uplift of the social and economic circumstances of local communities surrounding the mine and are a prerequisite to securing and maintaining a mining right, with progress required to be reported each year. The current SLP is valid until 31 December 2022, after which it will need to be renewed for a further five-year period.

Harmony has budgeted to spend approximately ZAR21.52m during the next financial year. Harmony had committed to allocate approximately ZAR47.2m over the five-year period on local development programmes identified by stakeholders within the host community.

17.5Mine Closure Plans

Harmony makes provision for closure and rehabilitation both for accounting purposes and as required under the MPRDA. The statutory obligation for all environmental rehabilitation at Moab Khotsong is administered

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by the DMRE and requires the preparation of a closure plan, the development of a cost estimate, and financial assurance. The Company makes an annual submission to the DMRE setting out the cost of closure in accordance with the MPRDA and the regulations issued thereunder.

Harmony appointed Digby Wells Environmental (“Digby Wells”), independent environmental consultants, to review and update the closure cost. The mine closure assessment was done in terms of regulation 53 and 54 of the MPRDA and in accordance with the requirements of NEMA. The closure cost as at 30 June 2022, was calculated to be ZAR 553m including a 10% contingency allowance.

The mine closure cost estimate includes all costs associated with demolition and rehabilitation of the footprint after mining activities cease.

This liability covers all buildings, offices, water tanks, plants, tailings storage facilities, waste rock dumps and properties, among others. The liability is assessed and updated annually.

Harmony is required to make funding available in an amount equal to the cost of closure as determined under the MPRDA in the form of a trust fund and/or bank guarantees. The funding provided in the form of a trust fund and guarantees to satisfy the total regulatory liability is set out in Table 17‑3.

Table 17‑3: Total Rehabilitation Assurance Funds

Area	Trust Fund (ZARm)	Bank Guarantee (ZARm)	Total (ZAR)
Moab Khotsong	2,596,699,548	0	2,596,699,548
Zaaiplaats	Included in above	Included in above	Included in Above
Total	2,596,699,548		2,596,699,548
Note: Included in Bambanani, Joel, Matjhabeng and Tshepong Rehabilitation Trust Fund

17.6Status of Issues Related to Environmental Compliance, Permitting, and Local Individuals Or Groups

Most of the required environmental authorisations are in place and only require amendments to be made to reflect the current infrastructure at Moab Khotsong. Based on current industry norms, a realistic timeframe to obtain relevant authorisations is estimated between 12 and 18 months.

17.7Local Procurement and Hiring

Harmony is committed to investing in the future of local communities beyond the LOM and not to only empower them, but also to mitigate the impacts its activities to ensure a positive legacy. The 2014 Mining Charter serves to guide the South African mining industry in socio-economic transformation. Local procurement (goods and services) and human resource management are key measures set under the Mining Charter and are reported on annually. No material non-compliance issues are noted by the QP at the effective date of this TSR.

Portable skills are developed through expanded learning programmes, learnerships and other programmes opened only to operating communities and areas where labour is sourced. Local procurement is being supported where there is a skills shortage.

17.8Commentary on Environmental Studies, Permitting and Plans, Negotiations, or Agreements with Local Individuals or Groups

Periodic inspections are conducted by the DMRE to verify compliance with applicable environmental laws, regulations, permits and standards. In addition, Moab Khotsong has implemented an EMS in line with the ISO 14001 standard. The EMS is audited on an annual basis by a third party and includes the needs and expectations of interested parties.

As part of Harmony, Moab Khotsong conducts its operation based on policies and systems that are aligned to its corporate sustainable development framework. Although Harmony is not a signatory to the International Council on Mining and Metals or the UN Global Compact, these form the guiding principles of the framework. Harmony discloses its sustainable development voluntarily in accordance with the guidelines issued by the

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Global Reporting Initiative (“GRI”). Further to this, Harmony discloses environmental information on the Carbon Disclosure Project (“CDP”) for both climate change and water. The CDP runs the global environmental disclosure system that supports companies to measure and manage their risks and opportunities on climate change, water security and deforestation.

Harmony has a good understanding of the environmental and social aspects of the operations through baseline and specialist studies previously conducted. Risk management and mitigation measures were adequately addressed in the environmental management plans and will be effective to mitigate risks and impacts to acceptable levels should the measures be implemented according to the specialists’ recommendations.

Most of the required environmental authorisations are in place and only require amendments to be made to reflect the current infrastructure at Moab Khotsong. Based on current industry norms, a realistic timeframe to obtain relevant authorisations is estimated between 12 and 18 months.

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18Capital and Operating Costs

Section 229.601(b)(96) (18) (i-ii)

Economic parameters for the Harmony Group, including capital and operating costs, are determined, and signed off by the CODM, before distribution to the business units. The capital and operating costs are reported in ZAR terms and on a real basis.

18.1Capital Costs

The estimated capital costs for the on-going LOM at Moab Khotsong (including the Zaaiplaats) are broken down into costs associated with major equipment outside the main operating sections (“AE”), shaft projects, major projects and costs related to Mining Charter Compliance (“MCC”) as presented in Table 18-1. The estimated capital costs presented in Table 18-1 are carried forward and modelled in the Moab Khotsong cash flow.

The estimated capital costs for Zaaiplaats are broken down into project capital and MCC and are provided in Table 18-1: Summary of LOM Capital Cost Estimate for Moab Khotsong. The capital costs have been derived from the Zaaiplaats Feasibility Study, that was presented and approved by both the Technical and Investment Committees in October 2021. The Harmony project capital cost estimate was compiled at an industry standard for Feasibility Studies at a ±10%, level accuracy. A contingency of 9% has been applied to these capital costs.

18.2Operating Costs

A summary of the direct and indirect operating costs for the on-going LOM at Moab Khotsong (including Zaaiplaats) are presented in Table 18-2. The operating costs are based on historic performance while applying any changes expected within the new financial year (such as electricity requirements, increased/decreased labour).

The estimated operating costs for Zaaiplaats have been derived from the Feasibility Study, undertaken by Harmony in March 2021, and the level accuracy associated with the cost estimates is ±10%, as is industry standard for Feasibility Studies.

18.3Comment on Capital and Operating Costs

The capital and operating cost estimates for the on-going LOM at Moab Khotsong are based on actual historical data, as well as budget forecasts. Therefore, the forecasted costs are reliable, and at minimum meet the confidence levels of a Pre-Feasibility Study. This approach of estimating capital and operating costs is consistent with industry practice. A record of the forecast and budget costs is maintained by the operation, allowing for an assessment of the alignment of the forecast and actual costs.

The capital and operating costs for Zaaiplaats are derived from a Feasibility Study and are considered to have levels of accuracy in line with Feasibility Study requirements. Further, these estimates are informed by the extensive operating history of Moab Khotsong which is, in most cases, directly applicable to Zaaiplaats.

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Table 18-1: Summary of LOM Capital Cost Estimate for Moab Khotsong

Capital Cost Element (ZAR'000s)	Total LOM (FY2023 - FY2044)
OCD	5,281,402
AE	1,499,375
Shaft Projects	629,060
Major Projects	6,123,556
MCC	891,420
Total	14,424,813
Notes: Rounding of figures may result in minor computational discrepancies.

Table 18-2: Summary of Operating Cost Estimates for Moab Khotsong

Operating Cost Element (ZAR'000)	Total LOM (FY2023 - FY2044)
Wages - Payroll 1	12,779,501
Wages - Payroll 2	17,327,615
Stores and Materials	9,062,269
Electric Power and Water	20,837,430
Outside Contractors	3,335,620
Other	3,894,316
Direct Costs	67,236,750
Pumping Allocation	1,997,796
Refining Charge	215,127
Uranium Allocation	-431,531
Hostel Cost	-106,834
Backfill Cost	469,533
Plant Treatment Cost	6,467,227
Working Cost Transfer to Capital	-1,055,745
Care and Maintenance	879,243
Re-allocated costs	8,434,817
Mine Overheads Re-allocated	4,475,335
Total	80,146,902

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19Economic Analysis

Section 229.601(b)(96) (19) (i-iv)

19.1Key Economic Assumptions and Parameters

The CODM forms, reviews, signs-off and distributes economic assumptions to its various business units. On an annual basis, during the period October to November, long-term commodity prices and exchange rates forecasts’, are received from various financial institutions. In addition, a specialist in Economics from a reputable economics company based in South Africa, provides expert views on the global markets, forward looking commodity prices, exchange rates, consumer price index, production price index, electricity cost and consumable increases. All factors are analysed, cognisance is taken of the requirements of the NYSE and JSE markets, and a proposal is presented to the CODM for recommendation and approval. These assumptions are then applied at Moab Khotsong, along with specific operational considerations.

19.1.1Metallurgical Recoveries

The metallurgical recoveries used in the cash flow are provided in Table 12-1.

19.1.2Gold Price

The proposed gold price (USD1,546/oz) is the price that is used by Harmony for the Moab Khotsong annual planning cycle and forms the basis for the gold price assumptions used in the Moab Khotsong cash flow. The reader is referred to Figure 16-2 for the consensus forecast gold price.

The conversions used in the calculation of the various gold prices is presented in Table 19-1.

Table 19-1: Conversions Used in Gold Price Calculations

Economic Factors	Gold Price (USD/oz)	Conversion Factor (oz/kg)	Exchange Rate (ZAR:USD)	Gold Price (ZAR/kg)
2022 Mineral Resource	1,723	32.15	15.35	850,191
2022 Mineral Reserve	1,546	32.15	15.35	763,000
2023 forecasted gold price	1,546	32.15	15.35	763,000
Notes: 1. Forecasted gold price as used in the Moab Khotsong cash flow.

19.1.3Exchange Rate

The consensus minimum and maximum ZAR:USD exchange rate for the year 2021 Q4 to year 2025 is presented in Figure 19-1. The long-term exchange rates are considered from year 2025 onwards. The volatility in the ZAR has continued against the USD resulting in the ZAR:USD exchange rate fluctuating. Forecasts as advised from various financial institutions show that the ZAR/USD is expected to trade in a range of ZAR15.13:USD – ZAR15.83:USD for the period 2022 to 2025 with a long-term outlook of ZAR15.83:USD in the short term.

In addition, the CODM has reviewed the ZAR:USD exchange rate performance over the past three years, for the period July 2019 - June 2022 (Table 19-2). The proposed spot exchange rate of 15.35 ZAR:USD is the exchange rate that is used by Harmony for the Moab Khotsong annual planning cycle and forms the basis for the ZAR:USD exchange rate assumptions used in the Moab Khotsong cash flow.

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Table 19-2: ZAR:USD Exchange Rate Performance (June 2019 – June 2022)

Period	Average Exchange Rate (ZAR:USD)
July 2019 to June 2020	15.68
July 2020 to June 2021	15.41
July 2021 to June 2022	14.75
3-Year Ave. (not weighted)	15.28

Figure 19-1: Graph of Consensus ZAR : USD Exchange Rate Forecast

19.1.4Royalties

Royalty is an expense paid to the government of South Africa and is accounted for in the Moab Khotsong cash flow models. In terms of the mining ring-fencing application, each ring-fenced mine is treated separately, and deductions can normally only be utilised against mining income generated from the relevant ring-fenced mine.

19.1.5Capital Expenditure

At Harmony, capital is allocated to the mines with a longer life. Capital costs are presented for Moab Khotsong and Zaaiplaats in Table 18-1, collectively.

19.1.6Operating Expenditure

The operating costs are determined as a function of the cash working costs of the mining and mineral processing plant activities, and ongoing capital development for mining. Whereas, total costs are a function

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of the cash operating costs (“COC”), capital costs, and royalties. Operating costs for Moab Khotsong and Zaaiplaats are presented in Table 18-2. collectively.

19.1.7Working Capital

Working capital is calculated at a Harmony Group level and not at an operational level.

19.1.8Taxes

Mining tax on gold mining taxable income in South Africa is determined according to a formula, based on the taxable income from mining operations. Of that, 5% of total revenue is exempt from taxation while the remainder is taxable at a higher rate (34%) than non-mining income (28%). Accounting depreciation is eliminated when calculating the South African mining tax income. Excess capital expenditure is carried forward as unredeemed capital to be claimed against future mining taxable income.

19.1.9Closure Cost and Salvage Value

The closure cost estimates are those provided in Section 17.5. No account has been taken of any potential salvage values.

19.1.10Summary

The key assumptions used in the cash flow are summarised for Moab Khotsong and Zaaiplaats in Table 19-3.

Table 19-3: Key Economic Assumptions and Parameters

		Moab Khotsong	Zaaiplaats
Parameter	Unit	Value	Value
Production Rate	ktpm	80,000	70,000
Gold Recovery	%	96.70	96.50
Royalty	%	Formula	Formula
Tax Rate	%	Formula	Formula
Gold Price	ZAR/kg	763,000	763,000
Exchange Rate	USD:ZAR	Variable	Variable
Discount Rate	%	9.00	9.00

19.2Economic Analysis

Harmony's business units and its associated operating sites consider the economic assumptions discussed in Section 19.1 during their respective planning and analysis processes. The past year’s average gold price is used for testing purposes. A price of ZAR763,000/kg is used for forecasting the revenue of the Moab Khotsong cash flow (Table 19-4), which is combined for Moab Khotsong and Zaaiplaats.

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Table 19-4: Moab Khotsong Cash Flow

Item	Units	Total LOM	2023	2024	2025	2026	2027	2028	2029	2030
Milled Tonnes	t ('000)	17,602	953	994	975	803	657	559	386	570
Yield	g/t		7.46	8.10	8.96	7.92	6.62	6.21	7.93	9.45
Gold Recovered	kg	152,266	7,116	8,053	8,736	6,355	4,351	3,473	3,062	5,385
Gold Price	R/kg		763,000	763,000	763,000	763,000	763,000	763,000	763,000	763,000
Revenue	ZAR'000	116,178,850	5,429,580	6,144,428	6,665,337	4,848,925	3,319,732	2,650,033	2,336,247	4,108,952
Total Working Cost (COC+OCD+AE)	ZAR'000	86,927,679	4,809,949	5,023,304	4,998,983	3,981,843	3,151,044	2,625,364	2,699,395	3,560,458
Total Capital (excluding OCD)	ZAR'000	7,644,036	775,479	804,701	685,762	662,936	966,523	898,215	669,971	598,960
Royalty	ZAR'000	2,561,666	27,148	55,887	111,271	40,533	16,599	13,250	11,681	20,545
Total costs (including capital and royalty)	ZAR'000	97,133,381	5,612,577	5,883,892	5,796,016	4,685,312	4,134,166	3,536,829	3,381,047	4,179,962
Profit (after OCD and capital)	ZAR'000	19,045,469	-182,997	260,536	869,321	163,613	-814,434	-886,796	-1,044,800	-71,010
NPV - (low discount rate - 9%)	@9%	4,142,629
NPV - (medium discount rate - 12%)	@12%	2,568,827
NPV - (high discount rate - 15%)	@15%	1,615,828

Item	Units	Total LOM	2031	2032	2033	2034	2035	2036	2037	2038
Milled Tonnes	t ('000)	17,602	533	751	904	947	853	849	851	832
Yield	g/t		8.91	8.50	8.01	8.70	9.38	9.12	9.37	9.80
Gold Recovered	kg	152,266	4,751	6,378	7,242	8,234	7,994	7,750	7,966	8,162
Gold Price	R/kg		763,000	763,000	763,000	763,000	763,000	763,000	763,000	763,000
Revenue	ZAR'000	116,178,850	3,624,712	4,866,533	5,525,430	6,282,810	6,099,547	5,913,025	6,078,341	6,227,230
Total Working Cost (COC+OCD+AE)	ZAR'000	86,927,679	3,659,752	4,224,374	4,507,053	4,487,790	4,200,840	4,167,808	4,159,286	4,012,223
Total Capital (excluding OCD)	ZAR'000	7,644,036	329,575	259,112	171,329	143,872	72,719	72,695	72,578	72,438
Royalty	ZAR'000	2,561,666	18,124	54,588	94,848	162,736	175,171	162,047	176,843	201,262
Total costs (including capital and royalty)	ZAR'000	97,133,381	4,007,451	4,538,074	4,773,229	4,794,398	4,448,730	4,402,550	4,408,707	4,285,922
Profit (after OCD and capital)	ZAR'000	19,045,469	-382,739	328,459	752,201	1,488,411	1,650,817	1,510,475	1,669,634	1,941,307
NPV - (low discount rate - 9%)	@9%	4,142,629
NPV - (medium discount rate - 12%)	@12%	2,568,827
NPV - (high discount rate - 15%)	@15%	1,615,828

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Item	Units	Total LOM	2039	2040	2041	2042	2043	2044
Milled Tonnes	t ('000)	17,602	908	960	946	950	839	584
Yield	g/t		9.55	8.55	8.40	9.21	9.33	10.05
Gold Recovered	kg	152,266	8,667	8,205	7,947	8,748	7,822	5,867
Gold Price	R/kg		763,000	763,000	763,000	763,000	763,000	763,000
Revenue	ZAR'000	116,178,850	6,613,279	6,260,749	6,063,828	6,674,814	5,968,460	4,476,861
Total Working Cost (COC+OCD+AE)	ZAR'000	86,927,679	4,049,150	4,052,250	3,998,328	3,973,937	3,648,856	2,935,691
Total Capital (excluding OCD)	ZAR'000	7,644,036	73,548	74,434	74,192	74,216	56,166	34,616
Royalty	ZAR'000	2,561,666	231,021	201,158	189,624	243,507	210,917	142,909
Total costs (including capital and royalty)	ZAR'000	97,133,381	4,353,718	4,327,842	4,262,144	4,291,660	3,915,939	3,113,216
Profit (after OCD and capital)	ZAR'000	19,045,469	2,259,561	1,932,908	1,801,684	2,383,154	2,052,521	1,363,645
NPV - (low discount rate - 9%)	@9%	4,142,629
NPV - (medium discount rate - 12%)	@12%	2,568,827
NPV - (high discount rate - 15%)	@15%	1,615,828

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The discounted cash flow model is used to calculate the NPV of the investments. The NPV is calculated on a cash flow that accounts for factors such as:

•mining and ore processing working costs;

•royalty payments;

•capital costs, including costs allocated to ongoing development;

•any significant project work considered as major projects; and

•costs deemed as abnormal expenditure.

19.3Sensitivity Analysis

The economic assumptions, cash flow breakdown and economic analysis contribute to the basis for the sensitivity analysis. The sensitivity analysis considers various scenarios, for which the project NPV is calculated. The sensitivities are calculated and analysed, as shown in Table 19-5, Table 19-6 and Table 19-7).

Harmony has reviewed its exposure in terms of South Africa’s political instability, the COVID-19 pandemic, the currency exchange rate, and the gold price, on its financial assets and financial liabilities, and has determined the sensitivities for a ±10% variance. Management considers this range to be a reasonable change given the volatility in the market.

The sensitivity analysis is completed for variations in commodity price (ZAR/kg), total operating costs, which include capital costs and royalties paid (ZAR); and a combined analysis considering variations in commodity price, total operating costs, and changes in production. These sensitivities are for the combined Moab Khotsong Operations (including Zaaiplaats). The base case in the analysis below is the economic results emanating from the LOM plan (Table 19-4).

Table 19-5: Gold Price Sensitivity Analysis @9% Discount rate

Sensitivity (%)	Production (kg)	Gold Price (ZAR/kg)	Revenue (ZAR’000)	Operating Cost (ZAR'000)	Profit / Loss (ZAR'000)	NPV (ZAR Bn)
10%	152,266	839,300	127,796,734	97,133,381	30,663,354	8.921
5%	152,266	801,150	121,987,792	97,133,381	24,854,411	6.532
LOM plan	152,266	763,000	116,178,850	97,133,381	19,045,469	4.143
-5%	152,266	724,850	110,369,907	97,133,381	13,236,526	1.753
-10%	152,266	686,700	104,560,965	97,133,381	7,427,584	-0.636

Table 19-6: Total Operating Cost Sensitivity Analysis @ 9% Discount rate

Sensitivity (%)	Production (kg)	Gold Price (ZAR/kg)	Revenue (ZAR’000)	Operating Cost (ZAR'000)	Profit / Loss (ZAR'000)	NPV (ZAR Bn)
10%	152,266	763,000	116,178,850	106,846,719	9,332,131	-0.221
5%	152,266	763,000	116,178,850	101,990,050	14,188,800	1.961
LOM plan	152,266	763,000	116,178,850	97,133,381	19,045,469	4.143
-5%	152,266	763,000	116,178,850	92,276,712	23,902,138	6.325
-10%	152,266	763,000	116,178,850	87,420,043	28,758,807	8.507
Note: 1. Total operating cost, including capital and royalty (ZAR).

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Table 19-7: Gold price, Operating Costs, and Production Variation Sensitivity Analysis @ 9% Discount rate

Sensitivity (%)	Production (kg)	Gold Price (ZAR/kg)	Revenue (ZAR’000)	Operating Cost (ZAR'000)	Profit / Loss (ZAR'000)	NPV (ZAR Bn)
10%	167,492	839,300	140,576,408	106,846,719	33,729,689	9.813
5%	159,879	801,150	128,087,182	101,990,050	26,097,132	6.858
LOM plan	152,266	763,000	116,178,850	97,133,381	19,045,469	4.143
-5%	144,653	724,850	104,851,412	92,276,712	12,574,700	1.666
-10%	137,039	686,700	94,104,868	87,420,043	6,684,825	-0.572

The sensitivity analysis (Table 19-5 and Table 19-6) is based on a change in a single assumption while holding all other assumptions constant. In practice, this is unlikely to occur, as risks and/or opportunities will have an impact on the cash flows, and changes in some of these assumptions may be correlated.

The insights that can be provided by this sensitivity analysis is that Moab Khotsong is most sensitive to changes in the gold price (ZAR/kg), closely followed by changes in total operating costs (ZAR).

The impact of one or a combination of risks and opportunities occurring at the same time cannot be specifically quantified so an analysis considering multi-parameters is considered. In this way the general risks, with the aid of the sensitivity table (Table 19-7) are adequately covered. The sensitivity analysis considering a 10% increase in production, gold price, operating variables show that the lowering of working costs, improvement in productivity and the benefits of a higher gold price can have positive impacts on the Moab Khotsong Mine.

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20Adjacent properties

Section 229.601(b)(96) (20) (i-iv)

There are a number of active and closed mining operations in the Klerksdorp Goldfield. Moab Khotsong and Great Noligwa were originally part of the AngloGold’s Vaal River Operations, which included 12 shafts. Other operations in the Klerksdorp Goldfields include the Hartebeestfontein and Stillfontein Gold Mines, near the town of Stillfontein.

Moab Khotsong’s only immediate neighbour is Kopanang Mine, which was previously owned by AngloGold, and which is now Heaven-Sent SA Sunshine Investment Company Limited (“Heaven-Sent”) through its share of Village Main Reef Limited (“Village Main”). Village Main also operates Tau Lekoa Mine, which is approximately 15km to the west of Moab Khotsong.

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21Other Relevant Data and Information

Section 229.601(b)(96) (21)

Public disclosure reports on Moab Khotsong’s operational, financial and environmental performance are available on the Company’s corporate website. The following reports are relevant to this TRS:

•Integrated annual report 2022;

•ESG report 2022;

•Financial report 2022;

•Report to shareholders 2022;

•Operational report 2022;

•Climate-related Financial Disclosures (“TCFD”) report 2022

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22Interpretation and Conclusions

Section 229.601(b)(96) (22)

Moab Khotsong is a well-established mining operation which includes the underground and surface assets associated with the Great Noligwa Mine and the Moab Khotsong Mine, both of which were previously owned by AngloGold. Harmony has no known risks to conduct mining activities over the permitted mining rights. In addition, no known risks are posed over surface access and activities, regarding mining related activities.

Moab Khotsong is sub-divided by major faults into three distinct geographical mining areas. These are referred to as Top Mine and Middle Mine, accessed through Moab Khotsong shaft, and Zaaiplaats accessed through a decline system off the base of the Moab Khotsong shaft. Zaaiplaats started development from 101 level after Board approval in 2021.

The regional geological setting, mineralisation and deposit at Moab Khotsong is well understood and is informed by geophysical surveys, surface and underground diamond core drilling and underground channel sampling and mapping. The gold mineralisation is primarily found in the Vaal Reef, with the C Reef being a secondary source. The geological structure in the area is complex. The exploration to date, and exploration plans going forward, are focused on obtaining a good understanding of the structure and its impact on the locations of the reefs.

The sampling approach and management, density assumptions, laboratory procedures, and assaying and analysis are in keeping with industry standards and practices and are appropriate for the Witwatersrand-type mineralisation. The holistic understanding of the regional geology, lithological and structural controls of the mineralisation at Moab Khotsong is sufficient to support the estimation of Mineral Resources.

The data pertaining to the mineralisation, regional and geological setting, exploration findings, sample collection, preparation, and testing, inclusive of data verification gives rise to the Mineral Resource estimate.

The combined Measured and Indicated Mineral Resource, exclusive of Mineral Reserves, as at 30 June 2022 is 6.401Mt at 0.503oz/t gold, containing 3.217Moz of gold, and the Inferred Mineral Resource contains 2.816Mt at 0.557oz/t gold, containing 1.568Moz of gold.

Mineral Reserves are derived from the Mineral Resources. In the case of Top Mine and Middle Mine, a detailed business plan and operational mine planning processes has supported this conversion. The conversion of Mineral Resources to Mineral Reserves for Zaaiplaats is founded on an industry-standard Feasibility Study. The planning and Feasibility Studies takes into consideration achieved technical parameters. Conversion of Mineral Resources to Mineral Reserves also takes into account the Modifying Factors, dilution, ore losses, minimum mining widths, planned mine call and plant recovery factors. The Mineral Reserve is 16.176Mt of milled ore containing 4.031Moz as at 30 June 2022.

Moab Khotsong is currently operating profitably. The LOM plan and associated cash flow, which incorporate Top Mine, Middle Mine and Zaaiplaats, also shows a positive result. Uranium or any other by-products that are recovered as part of the refining process, make up an immaterial component of the total metal inventory, and is thus not reported as part of the Mineral Reserve estimates. There are no obvious material risks that could have significant effect on the Mineral Reserves.

The Mineral Reserves are extracted via conventional breast mining, following a scattered grid. The method, which is implemented with extensive use backfill support, has been adopted due to the relatively complex geological structure. This mining method has proven to be a safe and economic mining method. It does, however, require a high degree of mining flexibility and hence development is required 12-24 months ahead of mining.

Ore mined at Moab Khotsong is processed at the Great Noligwa plant which has been producing gold since 1972. As such, the processing method is considered well established for the mineralisation. The plant makes use of historical trends and data as a basis for their recoveries of Vaal Reef and C Reef.

The mine’s infrastructure is capable of fully supporting the mining and surface related mining activities. Moab Khotsong is accessed via national and provincial road networks, has key power transmission and distribution

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networks provided by the National electricity regulator, water supply networks and communication infrastructure. Overall, Moab Khotsong is well-established with sufficient logistics and infrastructure support for the existing and planned mining operations.

Harmony and Moab Khotsong are exposed to market risks such as exchange rate and gold price fluctuations which are partially offset by the Harmony Group hedging policy. The hedging programme takes into account factors effecting the global gold market and these, along with macro-economic conditions, are used to determine planning and forecasting inputs at group level for all of Harmony’s operating business units. Other non-gold related risks are addressed to some extent by Moab Khotsong entering into vendor agreements for the provisions of supplies and services which are done on a competitive basis with customary price adjustment, renewal and termination clauses.

To successfully operate a mining operation in South Africa the state requires compliance with applicable environmental laws, regulations, permits and standards. Moab Khotsong adheres to said compliance and regulatory standards and have, in addition, implemented an Environmental Management System in line with the ISO 14001.

As part of Harmony, Moab Khotsong conducts its operations based on policies and systems that are aligned its corporate sustainable development framework. This is guided by the principles of the framework from the International Council on Mining and Metals or the United Nations Global Compact. Harmony discloses its sustainable development voluntarily in accordance with the guidelines issued by the Global Reporting Initiative (“GRI”). Further to this, Harmony discloses environmental information on the Carbon Disclosure Project (“CDP”) for both climate change and water.

Harmony has a good understanding of the environmental and social aspects through baseline and specialist studies previously conducted. Risk management and mitigation measures were adequately addressed in the environmental management plans. Most of the required environmental authorisations are in place and only require amendments to be made to reflect the current infrastructure at Moab Khotsong. Based on current industry norms, a realistic timeframe to obtain relevant authorisations is estimated between 12 and 18 months.

The economics of Moab Khotsong are based on a discounted cash flow model, with a gold price of ZAR763,000/kg. The NPV is ZAR4.143Bn, at a discount rate of 9%. The NPV is calculated on cash flow that takes input parameters including capital and operating costs and royalties. The capital and operating cost estimates for Moab Khotsong are based on historical data, as well as budget forecasts. This estimation technique allows for the forecast and actual costs to be aligned. The costs for Zaaiplaats are based upon a Feasibility Study and are considered to have levels of accuracy in line with Feasibility Study requirements.

Royalties and taxes are paid to the South African government and accounted for in the Moab Khotsong cash flow and NPV analysis. There are also specific tax relief benefits that apply to gold mining companies, where 5% of total revenue is exempt from taxation, amongst other benefits.

The economics of Moab Khotsong are tested for its sensitivity to commodity price (ZAR/kg), operating costs (ZAR) gold production (kg). The insights provided by the sensitivity analysis is that Moab Khotsong is most sensitive to changes in the gold price (ZAR/kg), closely followed by changes in total operating costs (ZAR).

The TRS provides sufficient information as required and there is no other relevant data and information. The TRS was prepared by a team of experienced professionals. The TRS provides a summary of the material scientific and technical information concerning the mineral exploration, Mineral Resources, Mineral Reserves, and associated production activities of the mineral asset, including references to the valuation for Moab Khotsong. Each QP was responsible for specific sections of this TRS which they have personally supervised and reviewed. This TRS contains the expression of the QP opinions, based on the information available at the time of preparation.

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23Recommendations

Section 229.601(b)(96) (23)

23.1Zaaiplaats Exploration Drilling

Exploration drilling for Resource growth to fill the production gap between the current mine and the production build up at the future Zaaiplaats project and also to refine the geological model for the Zaaiplaats block. Drill targets have been identified and the exploration plan is focusing on improving the geological confidence within the North-eastern corner of Lower Mine. Above 101 Level drilling is targeting potential Blue Sky Vaal Reef blocks caught up within the Jersey fault zone. Below 101 Level drilling will upgrade structural confidence of the larger Lower Mine block. Some of the holes budgeted for will also be utilized for Geotechnical analysis.

A total of 5.5km of drilling amounting to ZAR12.6M have been budgeted from July 2022 to June 2022.

23.2Mineral Resource Growth Opportunities

Resource growth opportunities have been identified below 76 level. Brown Fields Exploration is required to confirm Vaal Reef blocks that are situated below 76 Level and that can potentially be accessed.

A total of 1.8km of drilling amounting to ZAR3M have been budgeted from July 2022 to June 2022.

23.3Zaaiplaats Design and Scheduling

Zaaiplaats design and scheduling will be adjusted as new orebody information becomes available as exploration continues.

23.4Investigation of Inventory Areas

Opportunities in blocks that have been moved into inventory continues to be investigated, especially adjacent areas to current mining with synergies

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24References

Section 229.601(b)(96) (24)

Dankert, B.T., and Hein, K.A.A., 2010. Evaluating the structural character and tectonic history of the Witwatersrand Basin. Precambrian Research 177, 1–22.

Freese, L.B., 2021. Ore Reserve Statement for period ended 30 June 2021, Technical Report for Moab Khotsong Operations. Harmony Gold Mining Operations, South Africa.

https://www.gold.org/goldhub/data/gold-prices. Accessed 22 July 2022.

Harmony. (2021, October 29). Harmony Mineral Resources and Mineral Reserves Report 2021. https://www.har.co.za/21/download/HAR-RR22.pdf

Robb, L.J., and Meyer, F., 1995. The Witwatersrand Basin, South Africa: Geological framework and mineralisation processes. Ore Geology Reviews, 10(2), 67-94.

Robb, L.J., Robb, V.M., 1998. Gold in the Witwatersrand Basin. In: Wilson, M.G.C., Anhaeusser, C.R. (Eds.), The Mineral Resources of South Africa. Handbook. Council for Geoscience, 294–349.

South African Revenue Services. (2021, July 29). South African Revenue Services. Retrieved from Tax Relief Measures: https://www.sars.gov.za/media/tax-relief-measures/

Therriault, A.M., Grieve, R.A.F., Reimold, W.U., 1997. Original size of the Vredefort Structure: Implications for the geological evolution of the Witwatersrand Basin. Meteoritics and Planetary Science 32, 71–77.

Tucker, R.F., Viljoen, R.P., and Viljoen, M.J., 2016. A Review of the Witwatersrand Basin The World’s Greatest Goldfield, accessed from https:// www.researchgate.net /publication /305924249 _A_Review_of_the_Witwatersrand_Basin_-_The_World's_Greatest_Goldfield.

World Gold Council. (2022, July 18). World Gold Council, Gold Hub, Gold mine production: Gold Production by Country | Gold Production | Goldhub

Harris, D.C. (1990). The mineralogy of Gold and its relevance to Gold recoveries. Mineral Deposita, volume 25, Supplementary Eds. S3-S7

Petruk, W. (2000). Applied mineralogy in the mining industry. Amsterdam; New York, Elsevier.

Zhou, J.Y. and Gu, Y. (2008). Gold process mineralogy and its significance in Gold metallurgy. Ninth International Congress for Applied Mineralogy, Brisbane, QLD

Zhou, J.Y. and Cabri, L.J. (2004). Gold process mineralogy: Objectives, techniques, and applications. Journal o Minerals, Metals and Materials Society, volume 56, number 7

Zhou, J., Jago, B. and Martin, C. (2004). Establishing the Process mineralogy

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25Reliance on Information Provided by the Registrant

Section 229.601(b)(96) (25)

Further to Section 24, in the preparation of this TRS, the principal QP and author relied entirely on information provided by various parties relating specifically to mining rights, surface rights, contractual agreements, historical operating expenditures, community relations and other matters. The work conducted by technical experts was completed under the supervision and direction of the respective QPs. The technical experts who assisted the principal author and QPs are listed in Table 25-1.

Table 25-1: Other Technical Experts

Name	Specialist	Area of Responsibility	Association / Company
R Greyling	Senior Occupational Environmental Officer	Ventilation and Refrigeration	Moab Khotsong
C Jooste	Rock Engineer	Geotechnical Designs	Moab Khotsong
N J v Rensburg	Rock Engineer	Geotechnical Designs	Moab Khotsong
C Hempel	Survey and Planning Manager	Reconciliation and Reporting	Moab Khotsong
M v Heerden	Senior Engineer	Technical Studies	Moab Khotsong
W Gouws	General Manager	Mining Method and Logistics	Moab Khotsong
D Roux	Senior Surveyor	Ore Reserve	Moab Khotsong
J Wall	Senior Mine Planner	Mine design and scheduling	Moab Khotsong
J Kahts	Senior Mine Planner	Mine design and scheduling	Moab Khotsong
W de Wit	Legal Counsel	Mineral rights and legal consultation	Harmony Central
C du Plessis	Plant Manager	Recovery and process costs	Noligwa Plant
W Manana	Plant Manager	Recovery and process costs	Noligwa Plant
S Plotz	Senior Financial Manager	Cash flow analysis	Moab Khotsong
H Mashaba	Environmental Officer	Mine Closure and Rehabilitation	Harmony Central
E Rossouw	Senior Accountant	Recovery and process costs	Noligwa Plant
J Jackson	Tax Head of Department	Tax	Harmony Central
J Powell	Geostatician HOD	Mineral Resources	Harmony Central
E Malaola	Manager ORM Audit and Survey	Mineral Resources and Reserves Audit	Harmony Central
T v Dyk	Senior Ore Reserve Manager	Mineral Resources and Reserves Audit	Harmony Central
J Boshoff	Executive: Ore Reserves	Mineral Resources and Reserves Audit	Harmony Central

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