Greatland Resources Limited · ASX:GGP

Greatland Resources — Technical Presentation (June 2025)

45 slides from Greatland Resources's technical presentation, Jun 5, 2025

1. Slide 1: A New Australian Gold-Copper Producer

   A New Australian Gold-Copper Producer 100% owner of Havieron and Telfer Site Visit Presentation – Telfer and Havieron 5 June 2025

2. Slide 2: Disclaimer

   Disclaimer The summary information contained in this document has been provided solely for information purposes and does not purport to be comprehensive or contain all the information that may be required by recipients to evaluate Greatland Gold plc or Greatland Resources Limited (together, Greatlan

3. Slide 3: Overview

   Overview

4. Slide 4: Greatland is a leading new Australian gold and copper producer

   Greatland is a leading new Australian gold and copper producer Havieron is a world-class, high-grade, Telfer is an established large-scale operating brownfield gold-copper development project gold-copper mine (>15Moz Au produced since discovered by Greatland in 2018 1977) with one of the largest gol

5. Slide 5: Located within the rich, prospective and underexplored Paterson province

   Located within the rich, prospective and underexplored Paterson province Legend Greatland (100%) Greatland – Rio Tinto  Greatland has an exploration portfolio covering >2,000km2 Paterson South JV >2,000km2 Rio Tinto (100%) within 60km of Telfer in the highly prospective Paterson Cyprium Metals (100

6. Slide 6: Safety

   Safety Since Greatland commenced ownership of Telfer, the continued focus on visible field leadership has seen a further improvement in the operation’s recordable injuries with group TRIFR reducing from 14.1 at end of Dec-24 to 9.0 at end of Mar-25 Greatland Group 12 Month Moving Average TRIFR 16 14

7. Slide 7: March 2025 quarter results and FY25 guidance

   March 2025 quarter results and FY25 guidance1 Production Sales Cash Production of 90.2koz Au and 3.5kt Cu Sales of 89.1koz Au and 3.7kt Cu Free cash flow of A$253m at AISC of A$2,126/oz Average realised gold price A$4,585/oz Closing net cash of A$398m (31 Mar 25) Revenue of A$458m Financing FY25 Gui

8. Slide 8: Telfer 2-Year Outlook

   Telfer 2-Year Outlook Telfer 2-Year Outlook targets average annual production of 280-320koz of gold plus 7-11kt copper across FY26-27 Telfer FY26 and FY27 Production (koz) and AISC (A$/oz) Ranges1,2  Bridges any previously perceived 'gap' before Havieron production is expected to begin during FY283

9. Slide 9: 2-Year Outlook mining areas – West Dome Open Pit and Main Dome Underground

   Telfer 2-Year Outlook mining areas – West Dome Open Pit and Main Dome Underground Telfer 2-Year Outlook comprises inventory from areas within the West Dome Open Pit, Main Dome Underground, ROM Stockpiles and Low Grade Stockpiles West Dome Open Pit (Plan View)1,2 Main Dome Underground (1) Stage 2 Ext

10. Slide 10: Geology and Resource

    Geology and Resource

11. Slide 11: Telfer overview

    Telfer overview A world class deposit, with >15Moz Au produced to date Overview  History of Telfer Deposit o 1977: Mining began at the Main Dome open pit o 1986: The operation transition to a low-grade bulk mining operation (dump leach) o 1995: mechanised UG mining began in the M Reefs o 2002: UG e

12. Slide 12: Telfer Mineral Resource of 3.2Moz gold + 117kt copper

    Telfer Mineral Resource of 3.2Moz gold + 117kt copper Greatland’s inaugural Telfer MRE announced in March 20251 focused on reviewing the active mining area West Dome Open Pit (Plan View) Main Dome North Open Pit Main Dome West Dome Underground Open Pit Open Pit Surface Existing UG Development Indica

13. Slide 13: Telfer extension opportunities

    Telfer extension opportunities Multiple avenues to support Telfer growth and extension opportunities 1 to 3 : West Dome Open Pit Multiple extensions opportunities being evaluated: • Stage 7 extension, Central Main Dome Extension and Southern Extension West Open Pit identified as priority drilling ar

14. Slide 14: West Dome Underground

    West Dome Underground The newest underground opportunity at Telfer  Situated 1km beneath the existing West Dome Open Pit, 2km northwest of the active Main Dome Underground, high grade mineralisation defined over 700m in strike to date and remains open  Consistently wide and high-grade results retu

15. Slide 15: Havieron geology & resource

    Havieron geology & resource  Intrusion related gold & copper system (IRGS) with a diorite intrusive sill at the core of the large breccia system  Mineralisation is hosted within a vertical breccia pipe, 650m (L) by 350m (W) and >1,000m (V) and under 400m of late Permian cover  Gold and copper min

16. Slide 16: Mining: Telfer Open Pit

    Mining: Telfer Open Pit

17. Slide 17: Open Pit - West Dome (March Q 2025)

    Telfer Open Pit - West Dome (March Q 2025) The March Q 2025 represented the first full quarter of Telfer open pit production under Greatland ownership West Dome Open Pit Active Mining Areas and Production (March Quarter 2025)1  Ore Mined: 2,611kt  Mine Grade (Au | Cu): 0.64g/t Au | 0.05% Cu  Cont

18. Slide 18: Open Pit - Mining fleet

    Telfer Open Pit - Mining fleet Current mine equipment fleet Hydraulic Mining Shovel – Caterpillar 6060 Mobile Processing Unit Trucks – Dyno Nobel Primary Load and Haul Equipment Dump Truck – Caterpillar 793C Drills – Epiroc Pit Viper 231  2 X Caterpillar 6060 Hydraulic Mining Shovel  3 X Caterpill

19. Slide 19: Open Pit - Recent capital investments at West Dome Open Pit

    Telfer Open Pit - Recent capital investments at West Dome Open Pit Recent major capital expenditures include the Stage 7 cutback which is a new mining area that commenced in the March 2025 quarter New 15m communication tower Recent Key Capex Investments at West Dome Open Pit North Waste dump extensi

20. Slide 20: Open Pit - Operating technology

    Telfer Open Pit - Operating technology Telfer Open Pit incorporate various forms of technology to improve daily operating efficiencies Machine Guidance Systems – High density Spatial Real-time productivity GET removal – Drone technology Modular, Provision and High Speed with magnetometer and WIFI me

21. Slide 21: Open Pit - Safety systems

    Telfer Open Pit - Safety systems Telfer Open Pit deploy several active safety systems that monitor rockmass displacement, operator fatigue behavior and vehicle proximity detection systems Equipment Monitoring - DSS Fatigue monitoring Geotechnical Monitoring - Radar and Prism system and CAS Proximity

22. Slide 22: Open Pit - Stockpiles

    Telfer Open Pit - Stockpiles Greatland has more than 400koz contained gold in estimated stockpiles (ROM and Low Grade) at the end of 31 Mar 2025 Legend Telfer Stockpiles - ROM Ore and Low Grade (31 Mar 2025, estimated) ROM Ore Stockpiles ROM Ore Stockpiles Unit Result PCM_WD11 Low Grade Ore Stockpil

23. Slide 23: Mining: Telfer Underground

    .. Mining: ’ Telfer Underground

24. Slide 24: Underground - Main Dome Underground (March Q 2025)

    Telfer Underground - Main Dome Underground (March Q 2025) The March Q 2025 represented the first full quarter of Telfer open pit production under Greatland ownership Main Dome Underground Active Mining Areas and Production (March Quarter 2025)1  Ore Mined: 278kt  Mine Grade (Au | Cu): 1.72g/t Au |

25. Slide 25: Main Dome Underground

    Main Dome Underground Main Dome Underground consist of multiple mineralized areas being mined currently and under development Mining zones in Main Dome Underground  Western Flanks: Long hole open stoping which targets the Lower Limey Unit (LLU). Current stopes being mined are considered extension a

26. Slide 26: Underground - Mining fleet

    Telfer Underground - Mining fleet Adequate underground mining equipment being utilised efficiently Fleet Inventory Primary Fleet Auxillary Equipment  3x Development Drills – DD421-60C  1x L120F  2x Production Drills – DL421-15C and DL432i-8C  5x L120H  4x Loaders – LH621i – Automine Capable  1

27. Slide 27: Underground - fixed plant infrastructure

    Telfer Underground - fixed plant infrastructure Winder, Crusher and Load Station A fully automated 4 rope friction winder hoists two 34.5t A Gyratory crusher was installed underground at Loading station installed underground at the skips operating in balance from a loading station the 4470 level as

28. Slide 28: Underground - fixed plant infrastructure

    Telfer Underground - fixed plant infrastructure Dewatering and Paste Plant To remove water from the mine itself, three large capacity APEX pumps The newly constructed paste plant at Telfer is now commissioned have been installed at the pump station at the bottom of the shaft. for the Rey area primar

29. Slide 29: Processing and Infrastructure

    Processing and Infrastructure

30. Slide 30: Telfer processing flowsheet

    Telfer processing flowsheet The Telfer processing plant adopts a conventional flowsheet to produce copper-gold concentrate, gold doré and gold middlings high-grade gravity concentrate Telfer Processing Flowsheet and Description  The Telfer circuit contains two largely independent processing trains:

31. Slide 31: Historical and current throughput and recovery

    Historical and current throughput and recovery Under Greatland ownership in the March 2025 quarter Telfer achieved improved recoveries and record margins from lower AISC and high gold prices Gold Production (koz), AISC (A$/oz) and Average Realised Price (A$/oz)  Greatland has achieved significant o

32. Slide 32: Asset integrity

    Asset integrity All major assets are in satisfactory condition owing to a robust maintenance strategy and adequate risk mitigation strategies in place Asset Integrity Plant Asset Condition  All major assets, equipment items, and components are in satisfactory condition due to a robust maintenance s

33. Slide 33: Power and water

    Power and water Sufficient power and water infrastructure with significant spare capacity available to enable operation Power and Water Primary Power Station (PPS)  Primary gas-powered power station with 135MW capacity across 3 x LM6000 GE gas turbine packages, able to generate ~48MW each Primary P

34. Slide 34: Tailings storage facilities

    Tailings storage facilities Significant investments in TSF8 and TSF7, with TSF8 operating normally TSF Conditions TSF8  TSF8 was successfully remediated in September 2024 by Newmont and is operating normally  Currently depositing into Stage 2, following completion of lift  Stage 3 lift (downstrea

35. Slide 35: Havieron – world class asset

    Havieron – world class asset

36. Slide 36: Havieron overview

    Havieron overview Greatland’s 100% owned Havieron project is a world-class, development project with one of the largest gold endowments across Australia  The Havieron gold-copper project is a world-class, high-grade underground gold-copper deposit with multi - decade mine life Havieron - Aerial Vie

37. Slide 37: Havieron is the second largest undeveloped gold project in Australia

    Havieron is the second largest undeveloped gold project in Australia Australian Gold Projects – Current Mineral Resource 1 Contained Oz 2 Resource Grade (Moz Au) (g/t Au) 12.0 Havieron Contained Oz (Moz) Contained Oz (Moz) Grade (g/t Au) 10.0 11.2 9.0 9.0 10.0 8.0 7.0 8.0 7.0 6.0 6.0 4.4 5.0 4.0 3.2

38. Slide 38: Havieron underground development to date

    Havieron underground development to date Havieron underground being maintained to allow a fast restart of mining activities  Construction of a decline ramp to access the orebody commenced in May 2021, and has now been developed to a total distance of approximately 2,110m and a vertical depth of app

39. Slide 39: Havieron Feasibility Study - Design criteria

    Havieron Feasibility Study - Design criteria Design criteria has been finalised and will assess a higher mining throughput rate of 4.0-4.5Mtpa Summary Havieron Existing Evaporation Ponds 1-3  Havieron Feasibility Study is targeted for completion in the December 2025 Quarter with first gold producti

40. Slide 40: Havieron environmental and permitting approvals and native title

    Havieron environmental and permitting approvals and native title Approvals are progressing through the different stage gates in line with project expectations  Havieron is included under the existing Indigenous Land Use Agreement (ILUA)  Development of Havieron is occurring in two stages, with Sta

41. Slide 41: Appendices

    Appendices

42. Slide 42: Third highest gold or gold-copper processing capacity in Australia

    Telfer has the third highest gold or gold-copper processing capacity in Australia Australian Gold or Gold-Copper Plant Processing Capacity Plant throughput (Mtpa) 45 Flexible plant design provides optionality: 40.0  Telfer is the only operating processing plant in the Paterson region 40  Telfer ha

43. Slide 43: Telfer site infrastructure

    Telfer site infrastructure Significant infrastructure in place at Telfer 43 Building a platform for growth | AIM:GGP

44. Slide 44: Mineral Resource & Ore Reserve statement

    Mineral Resource & Ore Reserve statement Table 1: Greatland December 2024 Group Mineral Resource Estimate 1 Table 3: Greatland Havieron December 2023 Mineral Resource Estimate 3 Tonnage Grade Metal content Tonnage Grade Metal content Domain Classification (Mt) Au (g/t) Cu (%) Au (Moz) Cu (kt) Domain

45. Slide 45: For further information

    For further information info@greatlandgold.com https://greatlandgold.com

Greatland Resources — Technical Presentation (June 2025) on 6ix