Slide 1: Tropicana Analyst Visit
2022 Michael Erickson SVP Australia 3 August 2022 TROPICANA ANALYST VISIT 7 September 2022
Slide 2: Disclaimer – AngloGold Ashanti
DISCLAIMER – AngloGold Ashanti Certain statements contained in this document, other than statements of historical fact, including, without limitation, those concerning the economic outlook for the gold mining industry, expectations regarding gold prices, production, total cash costs, all-in sustaini
Slide 3: Cautionary Statement – Regis Resources
CAUTIONARY STATEMENT – Regis Resources This presentation contains only a brief overview of Regis Resources Limited and its associated entities The Company confirms that it is not aware of any new information or data that materially affects the (“Regis or RRL") and their respective activities and ope
Slide 4: Tropicana Overview
TROPICANA OVERVIEW Location: 330 km ENE of Kalgoorlie in WA Ownership: AngloGold Ashanti Australia Ltd (70% and manager), Regis Resources Ltd (30%). Village Size: 1,042 rooms. Ave People Per Day: 612 (outside of major shuts) on site. Mining: Conventional open cut and conventional mechanised undergro
Slide 5: Safety
SAFETY Frequency Rates Safety Statistics 265,789 275000 248,799 244,555 ” 240,750 233,485 236,414 250000 227,927 227,879 312731 ay) 903,704 225000 200000 2 600 5 3 s s E400 ze 2 3 200 o Sep-21 Oct-21 = Nov-21.‘Dec-21. «= Jan-22.— Feb-22.— Mar-22.— Apr-22.-— May-22.—Jun-22 Juk22 Aug-22 Hours lll Reco
Slide 6: Tropicana – A Track Record of Exceeding Expectations
TROPICANA – A TRACK RECORD OF EXCEEDING EXPECTATIONS Continuous improvement and delivery … … from a true Tier One asset. *Average production range (100%) subject to plans.
Slide 7: Open Pit Mining - Overview
OPEN PIT MINING - OVERVIEW • Conventional drill & blast, load and haul open pit mining • Most material mined is hard rock and requires drilling and blasting with a small proportion of free dig in recent pit expansion areas • Mining is carried out on blasting benches of up to 12m in height with flitc
Slide 8: Open Pit Mining – Grade Control
OPEN PIT MINING – GRADE CONTROL • Close-spaced RC grade control drilling is completed on a nominal 12 m square collar spacing with drilling three to four 12m high benches ahead of the mining front so that the information is available in a timely manner prior to mining • MP3 software conditional simu
Slide 9: Open Pit Mining - Fleet
OPEN PIT MINING - FLEET Mining equipment • Macmahon is the alliance mining contractor, • 1 x Hitachi 5600 hydraulic excavator • 2 x Caterpillar 6060 (1 x hydraulic face shovel, 1 providing operators and maintaining the x hydraulic excavator) mining equipment • 2 x Caterpillar 6040 hydraulic excavato
Slide 10: Underground Mining - Overview
UNDERGROUND MINING - OVERVIEW • Development of the Boston Shaker underground men began in May 2019 and commercial production was achieved in September 2020. • Tropicana underground commenced production in Q4 2022 • Macmahon is the underground mining alliance contractor Havana South Havana Tropicana
Slide 11: Underground Mining – Boston Shaker
UNDERGROUND MINING – BOSTON SHAKER Mining • The Boston Shaker underground mine is designed for conventional mechanised mining methods • Development utilises jumbos for drill and blast excavations • Production activities are based around variations of long hole open stoping methods, depending on the
Slide 12: Underground Mining – Boston Shaker
UNDERGROUND MINING – BOSTON SHAKER Grade Control • Underground grade control is completed in advance of stope final designs by underground RC drilling from dedicated drill drives above the orebody • Drill drives are designed parallel to the strike of the lodes in the hanging wall via an extension of
Slide 13: Processing Overview
PROCESSING OVERVIEW Key facts 2021 Throughput: 9.2 Mt Head grade: 1.42 g/t Plant availability: 97.2% Metallurgical recovery: 89.8% Residence time: +24 hrs
Slide 14: Processing
PROCESSING Plant Flowsheet Comminution • 2-stage crushing to -38 mm • High pressure grinding rolls • Mill feed <4 mm • Emergency stockpiles • 2 x ball mills (14 MW + 6 MW) Processing plant • 2 x thickeners • 4 x leach tanks • 6 x CIL tanks • AARL split elution • 2 x electrowinning cells • TSF – down
Slide 15: Tropicana Mill Improvement Journey
TROPICANA MILL IMPROVEMENT JOURNEY Optimising capacity Operational Excellence – Recovery, Runtime & Throughput Improvement +72.7% (+4.0 mtpa) 9.5 9.5 0.6 9.0 Million tonnes per annum (mtpa) 8.5 0.8 8.0 0.7 7.5 7.0 0.8 8.9 6.5 0.8 6.0 5.8 5.5 5.5 2016 2021 5.0 Original Plant design 2014 2015 Optimisa
Slide 16: Investing in the Future - Tropicana
INVESTING IN THE FUTURE - TROPICANA • Havana underground PFS started in Q3 2022 • Havana Link drive provides drill access between Tropicana and Havana and potentially early access to Havana UG 16
Slide 17: Regional Exploration
REGIONAL EXPLORATION • JV tenure spans ~70km north and south along belt • Regional exploration strategy to focus on within 20km of the mill along trend north and south of the current operation • Tenure under-explored compared to mature terrains 17
Slide 18: Full Asset Potential Process
FULL ASSET POTENTIAL PROCESS Weeks 1-4 Weeks 4-8 Weeks 9-12 Weeks 12-13 Beyond Identify Diagnose Design Plan & mobilise Deliver (Validate & prioritise) Identify solutions Deliver Wave 1 Data request Finalise and select detailed design Build fact initiatives & collection Solution Solution base Opport
Slide 19: Questions
BR QUESTIONS REGIS ANGLOGOLDASHANTI