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A Leading Australian Gold-Copper Producer In Western Australia’s Paterson Province September 2026 Quarter Presentation 26 October 2026
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Disclaimer Building a platform for growth | ASX:GGP | AIM:GGP2 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 Resources Limited (Greatland or Company). This document and the information contained in it has not been independently verified and no reliance should be placed on it or the opinions contained within it. In furnishing this document, the Company reserves the right to amend or replace this document at any time and undertakes no obligation to provide the recipient with access to any additional information. In all cases, readers should conduct, at their own cost, their own investigation, analysis and evaluation of the Company's business, prospects, operational and financial performance, and condition and should seek their own independent financial, legal or other advice in relation to such matters. No undertaking, representation, warranty or other assurance, express or implied, is made or given by or on behalf of the Company, its subsidiaries, or any of their respective directors, officers, partners (including joint venture partners), employees, agents or advisers, or any other person, as to the accuracy or completeness of this document or the information contained herein. Accordingly, no responsibility or liability (direct, indirect, consequential or otherwise), whether arising in tort, contract or otherwise, is accepted by any of them for the information or opinions contained in, or for any errors, omissions or misstatements (negligent or otherwise) in, this document or for any loss howsoever arising, directly or indirectly, from any use of such information or opinions. None of the Company, its subsidiaries, their respective directors, officers, employees, agents, affiliates and advisers, or any other party undertakes or is under any duty to update this document or to correct any inaccuracies in any such information which may become apparent or to provide you with any additional information, in each case, except as required by law or by any appropriate regulatory authority. This document does not constitute or form part of any offer or invitation or inducement to sell or issue, or any solicitation of any offer to purchase or subscribe for, any securities of the Company nor shall any part of it or the fact of its distribution form part of or be relied upon in connection with any contract or investment decision relating thereto. This document does not constitute a recommendation regarding the securities of the Company. In particular, this document and the information contained herein does not constitute an offer of securities for sale in the United States of America, its territories or possessions. Neither this document nor any copy of it may be taken or transmitted into the United States of America, its territories or possessions or distributed, directly or indirectly, in the United States of America, its territories or possessions. Neither this document nor any copy of it may be taken or transmitted into Canada, Japan or the Republic of South Africa or to any securities analyst or other person in any of those jurisdictions. Any failure to comply with this restriction may constitute a violation of United States, Canadian, Japanese or South African securities law. The distribution of this document in other jurisdictions may be restricted by law and persons into whose possession this document comes should inform themselves about, and observe, any such restrictions. This document includes certain “forward-looking statements”. All statements other than statements of historical fact included in this document, including without limitation statements regarding the future plans and objectives of the Company, are forward- looking statements that involve various risks and uncertainties. These forward-looking statements include, but are not limited to, statements with respect to pursuing successful production, development and exploration programs, and other information that is based on forecasts of future operational or financial results, estimates of amounts not yet determinable and assumptions of management. Any statements that express or involve discussions with respect to predictions, expectations, beliefs, plans, projections, objectives, assumptions or future events or performance (often, but not always, using words or phrases such as “expects” or “does not expect”, “is expected”, “anticipates” or “does not anticipate”, “plans”, “estimates” or “intends” or stating that certain actions, events or results “may”,“could”, “would”, “might” or “will” be taken, occur or be achieved) are not statements of historical fact and may be “forward-looking statements”. Forward-looking statements are subject to a variety of risks and uncertainties that could cause actual events or results to differ from those reflected in the forward-looking statements. There can be no assurance that forward-looking statements will prove to be accurate and actual results and future events could differ materially from those anticipated in such statements. Important factors that could cause actual results to differ materially from the Company’s expectations include, among others, risks related to the ability to raise additional capital, future commodity prices and changes in commodity prices, foreign exchange fluctuation, general economic conditions, proposed expenditure for exploration, development or production and general and administrative expenses, the actual results of current exploration activities, conclusions of economic evaluations, changes in project parameters as plans continue to be refined, development progress, increased costs and demand for production inputs, the speculative nature of exploration and project development, risks of obtaining necessary licences and permits and diminishing quantities or grades of reserves, political and social risks, changes to the regulatory framework within which Greatland operates or may in the future operate, environmental conditions including extreme weather conditions, recruitment and retention of personnel, industrial relations issues and litigation. There can be no assurance that such statements will prove to be accurate as actual results and future events could differ materially from those anticipated in such statements. Accordingly, readers should not place undue reliance on forward-looking statements. Nothing in this document or in the documents referred to in it should be considered as a profit forecast. Some of the financial performance measures used in this announcement are non-IFRS financial measures, including "all-in sustaining cost", "total cash cost", "net cash", "free cash flow", “operating cash flow”, "sustaining capital" and "growth capital". These measures are presented as they are considered to provide useful information to assist investors with their evaluation of the business's underlying performance. Since the non-IFRS performance measures listed herein do not have any standardised definition prescribed by IFRS, they may not be comparable to similar measures presented by other companies. Accordingly, they are intended to provide additional information and should not be considered in isolation or as a substitute for measures of performance prepared in accordance with IFRS. The price of the shares in Greatland (Shares) may decline and investors could lose all or part of their investment; the Shares offer no guaranteed income and no capital protection; and an investment in the Shares is compatible only with investors who do not need a guaranteed income or capital protection, who (either alone or in conjunction with an appropriate financial or other adviser) are capable of evaluating the merits and risks of such an investment and who have sufficient resources to be able to bear any losses that may result therefrom. Past performance of the Company or the Shares is not a guide to future performance. Certain of the industry, market and competitive position data contained in this document comes from the Company's own internal research and estimates based on the knowledge and experience of the Company's management in the market in which the Company operates. While the Company believes that such research and estimates are reasonable and reliable, they, and their underlying methodology and assumptions, have not been verified by any independent source for accuracy or completeness and are subject to change without notice. Accordingly, undue reliance should not be placed on any of the industry, market and competitive position data or forward-looking statements contained in this document. This document has not been approved by any competent regulatory or supervisory authority.
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Important Information Building a platform for growth | ASX:GGP | AIM:GGP3 ASX Listing Rule 5.23 This presentation contains references to Mineral Resource estimates for Telfer and Havieron which have been extracted from the Company’s ASX announcement dated 30 March 2026 titled ‘December 2025 Group Mineral Resource Statement’, and for Telfer (West Dome Open Pit) which have been extracted from the Company’s ASX announcement dated 29 June 2026 titled ‘March 2026 Group Ore Reserve Statement’, and it contains references to Ore Reserve estimates for Telfer and Havieron, which have been extracted from the Company’s ASX announcement dated 29 June 2026 titled ‘March 2026 Group Ore Reserve Statement’. The Company confirms that it is not aware of any new information or data that materially affects the information included in these announcements, and that all material assumptions and technical parameters underpinning the estimates in the relevant ASX announcement continue to apply and have not materially changed. Presentation This presentation is dated 26 October 2026, and was authorised for release by Shaun Day, Managing Director of Greatland. This presentation was released by Greatland Resources Limited (ACN 668 338 618) of Level 2, 502 Hay Street, Subiaco WA 6008, Australia.
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Results and Performance Highlights
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September 2026 Quarter Results 5 Production & AISC Production of 70.1koz Au and 2.9kt Cu at AISC of $2,925/oz Strong process volumes, 15-day planned maintenance shut successfully completed On track for FY27 guidance of 260 – 300koz at an AISC of $2,900 – 3,330/oz Cash & Finance Operating cash flow of $289m (June Q: $302m) Cash build of $25m (June Q: $81m) Cash balance of $1,314m (June Q: $1,289m), no debt Full upside exposure to gold price via put options Sales Sales of 71.9koz Au and 2.7kt Cu at average realised price of $5,980/oz Delivering net revenue of $485m Debt and liquidity $1,789m available liquidity1 Undrawn $475m Revolving Credit Facilities (RCF) + $25m Contingent Instrument Facility No mandatory hedging requirement 5–7-year tenor Building a platform for growth | ASX:GGP | AIM:GGP Note: All “$” values mentioned in this presentation are in Australian Dollars, unless specified 1) Available liquidity refers to $1,314m net cash reported at 30 September 2026 plus the $475m in undrawn Revolving Credit Facilities. Stockpiles (at 30 September) ROM containing 27koz Au, 1.2kt Cu Low grade containing 209koz Au, 8.4kt Cu Havieron Project underway Secondary approvals to start construction were obtained and followed by commencement of the Havieron Project construction phase in September 2026 Evaporation pond expansion tracking to plan Ventilation blind bore pad completed
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September 2026 Quarter Results
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Operations – Mining 7 Building a platform for growth | ASX:GGP | AIM:GGP Mining Areas for the Quarter Key operating metrics Ore mined from open pit of 4.0Mt at 0.45g/t Au and underground of 0.4Mt at 1.33g/t Au Summary 2,611 1,566 1,789 2,363 3,630 3,528 4,0450.64 0.59 0.60 0.58 0.49 0.44 0.45 0.0 0.1 0.2 0.3 0.4 0.5 0.6 0.7 0 1,000 2,000 3,000 4,000 kt Mar Q ’25 Jun Q ’25 Sep Q ’25 Dec Q ’25 Mar Q ’26 Jun Q ’26 Sep Q ’26 Open Pit Ore Mined Underground Ore Mined ▪ West Dome open pit ore mined from Stage 2, Stage 7 and Stage 8 ▪ 4.0Mt at 0.45g/t Au and 0.04% Cu, seventh consecutive lift in TMM driven by; higher trucking availability (new and rebuilt trucks), consistent digger productivity and ongoing focus to improve bench turnover and open up larger, more productive work fronts in Stage 7 ▪ Main Dome underground ore mined predominantly from A-reef and ESC ▪ 0.4Mt at 1.33g/t Au and 0.32% Cu ▪ West Dome open pit Stage 7 growth stripping progressed with 2.8Mt waste mined Open Pit Total Material Moved g/t 4,398 4,889 5,915 6,571 6,761 7,005 7,859 0 2,500 5,000 7,500 kt Mar Q ’25 Jun Q ’25 Sep Q ’25 Dec Q ’25 Mar Q ’26 Jun Q ’26 Sep Q ’26 79% 278 298 283 243 315 318 378 1.72 1.62 1.89 1.65 2.08 1.74 1.33 0.0 0.5 1.0 1.5 2.0 2.5 0 100 200 300 400 kt Mar Q ’25 Jun Q ’25 Sep Q ’25 Dec Q ’25 Mar Q ’26 Jun Q ’26 Sep Q ’26 g/t Refer to Greatland’s ASX release: September 2026 Quarterly Activities Report dated 26 October 2026.
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Operations – Processing 8 Production of 70.1koz Au and 2.9kt Cu, with stronger than planned throughput Building a platform for growth | ASX:GGP | AIM:GGP Ore Milled (kt) and Head Grade (g/t Au) ▪ 4.9Mt processed with average head grade of 0.50g/t Au & 0.07% Cu • Throughput ahead of plan and above the 20Mtpa nameplate run-rate after accounting for the major planned 15-day maintenance shutdown being successfully completed ▪ Continued strong recoveries: gold 85.1%, copper 82.5% • Gold recoveries in line with plan, copper recoveries ahead of plan ▪ Stockpiles • Stockpiles of ~0.4Mt processed in September 2026 Quarter, down from ~1.3Mt in the prior quarter with higher mine output and lower processed volumes (planned shut) • 1.4Mt ROM stockpiles at 0.60g/t Au remaining at quarter end • Low grade stockpiles total 19.5Mt at 0.33g/t Au ▪ Projects • TSF8 Stage 4 construction ongoing, completion scheduled in Q3 FY27 Gold Produced (oz) and Gold Recovery (%) Summary 4,584 4,917 4,680 4,513 4,815 5,186 4,888 0.68 0.58 0.58 0.65 0.59 0.50 0.00 0.25 0.50 0.75 0 1,500 3,000 4,500 6,000 7,500 kt g/t Au Mar Q ’25 Jun Q ’25 Sep Q ’25 Dec Q ’25 Mar Q ’26 0.53 Jun Q ’26 Sep Q ’26 Ore Milled (kt) (LHS) Gold Grade (g/t Au) (RHS) 90,172 78,283 80,890 86,273 82,723 79,100 70,131 0 20 40 60 80 100 0 40,000 80,000 120,000 160,000 Oz Au % 86.7% Mar Q ’25 82.4% Jun Q ’25 88.6% Sep Q ’25 88.4% Dec Q ’25 88.4% Mar Q ’26 86.8% Jun Q ’26 85.1% Sep Q ’26 Gold Produced (oz) (LHS) Gold Recovery (%) (RHS) Refer to Greatland’s ASX release: September 2026 Quarterly Activities Report dated 26 October 2026.
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Costs, AISC and Average Realised Price 9 AISC of A$2,925/oz, AISC margin of over $3,000/oz Building a platform for growth | ASX:GGP | AIM:GGP AISC Cost Buildup (A$m) 3.2 1.3 49.9 28.6 17.9 25.1 28.7 32.3 36.5 18.8 14.8 17.6 24.4 16.6 14.7 6.4 5.2 6.2 2.4 19.2 2.0 16.8 22.9 29.1 25.1 81.5 26.1 23.8 65.5 64.9 80.0 92.4 82.2 71.4 89.5 84.2 42.7 65.4 77.3 90.7 88.1 (46.1) (47.4) (42.3) (51.7) (66.0) (57.5) (50.9) -100 -50 0 50 100 150 200 250 300 0.2 Jun Q ’25 Sep Q ’25 Dec Q ’25 (0.1) (A$m) 12.2 Mar Q ’26 2.9 1.4 Jun Q ’26 -0 Mar Q ’25 3.4 Sep Q ’26 191.7 135.9 174.5 189.5 170.1 182.9 205.1 0.1 Mining Processing Site services TC/RC and freight Royalties Sustaining capex Rehabilitation By-product credits Average Realised Price and AISC (A$/oz) 2,056 2,312 2,925 6,773 6,468 5,980 0 500 1,000 1,500 2,000 2,500 3,000 3,500 4,000 4,500 5,000 5,500 6,000 6,500 7,000 (A$/oz) $2,126 $4,585 Mar Q ’25 $1,736 $5,014 Jun Q ’25 $2,155 $5,277 Sep Q ’25 $2,196 $6,301 Dec Q ’25 Mar Q ’26 Jun Q ’26 Sep Q ’26 AISC (A$/oz) Avg. Realised Price (A$/oz) Refer to Greatland’s ASX release: September 2026 Quarterly Activities Report dated 26 October 2026. Significant AISC margin generation since ownership +100% AISC margin
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Cash Balance Cash Flow and Finance $289m operating cash flow and closing cash of $1,314m at quarter-end 10 Key Quarterly Financials Full exposure to spot gold price with downside protection via gold put options (1) $6.7 million of lease repayments are included in Sustaining Capital Lease repayments are included in cash flows from financing activities in the Consolidated Statement of Cash Flows included in the Company’s financial statements. (2) Corporate and finance includes corporate overheads and finance costs / interest and premiums paid for gold put options. (3) September Quarter 2026 cash balance of $1,314 million plus $475 million in undrawn revolving credit facilities. September 2026 Quarter Cash Flow Building a platform for growth | ASX:GGP | AIM:GGP $485m Net Revenue $5,980/oz Au realised $1,314m Quarter end date Gold volumes under put options (oz) Weighted Average Strike Price ($/oz) 31-Dec-2026 37,498 4,200 31-Mar-2027 37,500 5,000 30-Jun-2027 37,500 5,200 30-Sep-2027 37,500 5,000 Total 149,998 4,850 1,289 289 Opening Cash (1 July 2026) (17) Operating Cash Flow Resource Development & Exploration (36) Closing Cash (30 Sep 2026) Sustaining Capital1 (9) Corp. and Finance2 (100) Tax Cash Before Growth Capital (58) Telfer Growth Capital (45) 1,433 1,314 Havieron Growth Capital $289m Operating CF Total Liquidity3 $1,789m 71,901oz Au Sold 2,714t Cu Sold $16,653/t Cu realised
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Growth Havieron development underway
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Progress of Planned Growth Capital Initiatives 12 Key investments in Telfer life extension and formal commencement of the Havieron Project Building a platform for growth | ASX:GGP | AIM:GGP Growth Initiatives Quarterly Commentary Telfer Growth Capital TSF8 lifts ▪ TSF8 Stage 4 lift scheduled for Q3 FY27 completion and gives capacity to H2 FY28 ▪ TSF8 Stage 5 to commence in Q2 FY27 (overlapping Stage 4) ▪ TSF8 Stage 7 lift expected to be the first lift to integrate TSF7 with TSF8 for much more efficient lifts West Dome Open Pit pre-stripping ▪ 2.8Mt waste stripped from Stage 7 Purchase and refurbishment of open pit fleet equipment ▪ Fleet renewal program delivering improved Open Pit Total Material Movement ▪ Refurbished trucks progressively arriving over FY27 Underground growth ▪ 674 metres growth development ▪ Second West Dome Underground (WDU) development drive completed the vent circuit in early-October ▪ WDU shaft access haulage drive progressing ▪ WDU and Vertical Stockwork Corridor (VSC - below the historic sub-level cave) studies ongoing Havieron Growth Capital Havieron project underway ▪ All secondary approvals to commence construction were obtained and marked the formal commencement of the Havieron Project ▪ Evaporation pond expansion tracking to plan ▪ Blind bore pad completed ▪ Major Project Packages (Haul Road, HV Powerline) were tendered to market Exploration and Resource Development Resource growth drilling ▪ 73km of resource growth and conversion drilling completed ▪ 12 rigs currently active at site, second rig approved for the Pinnacles Prospect (WDU extension) Refer to Greatland’s ASX release: September 2026 Quarterly Activities Report dated 26 October 2026.
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FY27 Telfer Growth Capital 13 Telfer growth capital guidance of $315 – 335m to fund investments across mine development, infrastructure and fleet renewal to extend and grow Telfer operations Building a platform for growth | ASX:GGP | AIM:GGP Investing in Telfer’s multi-year life extension – key areas FY27 Telfer Growth Capital FY27 FY28 FY29 FY30+ Expected periods of benefit Additional purchase and refurbishment of OP fleet equipment (digger, truck fleet expansion etc) Underground growth development (including West Dome Underground early works) Paste infrastructure and power station upgrades (Paste for West Dome Underground and Havieron) Underground project studies (West Dome Underground and Vertical Stockwork Corridor) TSF8 Stage 4 & Stage 5 lifts Partial realisation of benefit Substantial realisation of benefit
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FY27 Guidance on track
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On Track for FY27 Guidance 15 Gold Production 260 – 300koz Au Modestly second-half weighted (open pit scheduling), 15-day planned plant maintenance shut completed in September quarter AISC $2,900 – 3,330/oz Au Q1 FY27 AISC slightly better than plan, on track for FY27 guidance Growth Capex Building a platform for growth | ASX:GGP | AIM:GGP Exploration & Resource Development $70 – 80m Building on record drill program in FY26 targeting further resource and reserve growth, with focus on grade Note: All “$” values mentioned in this presentation are in Australian Dollars, unless specified. Havieron $365 – 435m Pre-production investment phase of flagship growth project with first gold ~2.5yrs from commencement of construction Telfer $315 – 335m Investing in Telfer’s future with open pit fleet renewal, underground development, power plant upgrades and paste plant infrastructure, WDU and VSC studies, and increasing tails capacity into FY29 Continued high volume production from Telfer to support investment at Telfer and Havieron
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FY27 Catalysts1 and Key Milestones 16 Building a platform for growth | ASX:GGP | AIM:GGP Pinnacles & West Dome UG drilling update: ▪ Additional drilling at the Pinnacles Prospect ▪ Latest drilling from West Dome UG ▪ 3 surface drill rigs to test >1km long WDU- Pinnacles trend from Jan-27 Two key studies for Telfer underground growth assessing: ▪ West Dome Underground (WDU): ‘Phase 1’ study focusing on maiden resource area targeting a new independent high-grade UG mine at Telfer ▪ Vertical Stockwork Corridor: potential for restart of sub-level cave (smaller scale than historic cave) Telfer Mineral Resource update including: ▪ West Dome UG: targeting 10-15km of new drilling to support study and maiden Reserve ▪ West Dome OP: multiple cutbacks targeted for infill and growth ▪ Main Dome OP: A key enabler of greater open pit contingency and flexibility Telfer Ore Reserve update targeting: ▪ West Dome UG: Maiden Reserve (subject to study) ▪ West Dome OP: Potential to convert 42% more gold from Inferred Resources that is treated as waste within the current ORE pit shell ▪ Vertical Stockwork Corridor: Greatland Maiden Reserve (subject to study) Advance strategic review of a world-class Tungsten deposit: ▪ All options on the table including: Spin out/IPO, Partial/full divestment, JV/partnership ▪ Unlock latent value for shareholders (1) Timeline of catalysts indicative only with the timing and order of events subject to various operational and drilling milestones/market conditions. H1 FY27 H2 FY27 Drilling 1 Resource 2 Studies 3 Reserves 4 O’Callaghans 5 (1) Catalyst timing is indicative only and subject to drilling rates, operational progress and market conditions.
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Conclusion
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September 2026 Quarter Summary 18 Building a platform for growth | ASX:GGP | AIM:GGP (1) September Quarter 2026 cash balance of $1,314 million plus $475 million in undrawn revolving credit facilities. ▪ Sep Q production and AISC ahead of plan largely driven by better-than- expected process throughput. ▪ Planned 15-day mill shut successfully completed. ▪ Record open pit TMM and ore mined. ▪ On track for FY27 guidance. ▪ $25m cash build in Sep Q notwithstanding increased Havieron capex and tax paid. ▪ Closing cash of $1.3b, no debt. ▪ Available liquidity1 of $1.8b. ▪ Robust platform to execute organic growth. ▪ All secondary approvals to commence construction were obtained and marked the formal commencement of the Havieron Project. ▪ Evaporation pond expansion tracking to plan. ▪ Blind bore pad completed. ▪ Significant investment to progress new high-grade ore sources at Havieron, West Dome Underground and potentially the Vertical Stockwork Corridor. ▪ Investments in FY27 will lay the foundations for a period of sustained production growth from a higher-quality, longer-life gold-copper project. ▪ Continuation of the record drill cadence of FY26. ▪ Infill drilling planned to convert inferred resources to underpin reserve growth. ▪ Resource growth drilling also planned. ▪ Additional surface diamond drill rig approved for the Pinnacles Prospect. Strong quarter Havieron Underway Robust Treasury Growth Pipeline FY27 Drilling
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For further information info@greatland.com.au https://greatland.com.au Muddled 'X' rebrand of Twitter kills the blue bird | Marketing Mag
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Greatland Mineral Resource & Ore Reserve Statements Greatland reports its Mineral Resource and Ore Reserve estimates in accordance with the 2012 JORC Code. (1) Telfer Mineral Resources are reported as at 31 December 2025 (refer to ASX Announcement 30 March 2026 “2025 Group Mineral Resource Statement). Subsequent to this the West Dome Open Pit MRE has been updated as at 31 March 2026 (Refer to ASX announcement “March 2026 Group Ore Reserve Statement” released on 29 June 2026). Grades are reported to two decimal places to reflect appropriate precision in the estimate, and this may cause apparent discrepancies in totals. Cutoffs for the Telfer MRE are applied based on a NSR using metal prices of A$4,200/oz Au and A$6.50/lb and current site cost and revenue assumptions. Cutoffs for the Havieron MRE was based on a NSR using metal prices of A$2,360/oz Au and A$5.20/lb Cu. (2) Ore Reserve Estimates for Telfer as at 31 March 2026 and announced to the ASX on 29 June 2026. (3) As outlined in Greatland’s Prospectus dated released 30 May 2025, the December 2023 Havieron Mineral Resource Estimate grades are reported to two decimal places to reflect appropriate precision in the estimate, and this may cause apparent discrepancies in totals. Cutoffs for the Havieron Deposit Mineral Resources were based on a NSR using metal prices of A$2,360/oz Au and A$5.20/lb Cu. Grades are reported to one (gold) and two (copper) decimal places to reflect appropriate precision in the estimate, and this may cause apparent discrepancies in totals. Results represent 100% of the Mineral Resource for Havieron. Mineral Resources in the Crescent and Link Zones are reported within a A$80 Net Smelter Return/t (“NSR/t”) shell while Mineral Resources in the Breccias are reported within a A$50 NSR/t shell. Resources are inclusive of Reserves. (4) As outlined in Greatland’s “March 2026 Group Ore Reserve Statement” released on 29 June 2026 grades are reported to two decimal places to reflect appropriate precision in the estimate, and this may cause apparent discrepancies in totals. Cut-offs for the Telfer ORE are applied based on a variable break-even calculation using net smelter return (NSR), medium-term metal prices of A$4,000/oz Au and A$6.00/lb Cu and current site cost and operating conditions specific to each ore source. (5) Ore Reserves Estimate for Havieron are reported as at 1 December 2025 and have been extracted from the Company’s ASX announcement dated 1 December 2025 titled ‘Havieron Project – Feasibility Study. Refer to the announcement for full details including JORC 2012 appendices. The Ore Reserves Estimate is based on the Havieron December 2023 Havieron Mineral Resource Estimate. Grades are reported to two decimal places to reflect appropriate precision in the estimate, and this may cause apparent discrepancies in totals. Cut-offs for the Havieron Ore Reserve are applied on a break-even cut-off NSR of A$82/t processed, and metal prices of A$2,500/oz and A $10,141/t copper, average metallurgical recovery of 86.6% gold and 84.4% copper. Ore Reserves are reported within mining shapes based on a sub-level open stoping mining method with cemented paste fill. Reported metal was derived primarily from the Crescent Zone, and only the Indicated Mineral Resource component thereof. All Havieron Ore Reserves are reported as Probable Ore Reserves, no Proved Ore Reserves are reported. Table 1: Telfer and Havieron Mineral Resource Estimate 1 20 Building a platform for growth | ASX:GGP | AIM:GGP Table 2: Telfer and Havieron Ore Reserve Estimate 2,3,4,5 Measured Indicated Inferred Total Tonnes Au Cu Tonnes Au Cu Au Tonnes Au Cu Au Tonnes Au Cu Au Cu Domain Mt g/t % Mt g/t % Moz Mt g/t % Moz Mt g/t % Moz kt Havieron 50 2.56 0.33 4.1 81 1.09 0.13 2.8 131 1.65 0.21 7.0 275 Telfer West Dome Open Pit - - - 117 0.46 0.05 1.7 219 0.45 0.04 3.2 336 0.45 0.04 4.9 148 Main Dome Underground - - - 7.8 2.28 0.45 0.6 4.4 1.90 0.33 0.3 12.3 2.14 0.41 0.8 50 Main Dome UG VSC - - - 33.3 1.11 0.32 1.2 4.2 0.97 0.40 0.1 37.5 1.09 0.33 1.3 125 West Dome Underground - - - 2.9 2.29 0.48 0.2 5.1 2.30 0.42 0.4 8 2.30 0.44 0.6 35 Stockpiles 2.7 0.66 0.1 21 0.33 0.04 0.2 - - - - 24 0.37 0.05 0.3 11 Telfer Total 2.7 0.66 0.1 182 0.67 0.12 3.9 233 0.53 0.06 3.9 417 0.59 0.09 7.9 369 Greatland Total 2.7 0.7 0.1 232 1.08 0.17 8.1 314 0.67 0.08 6.8 549 0.84 0.12 14.9 644 Domain Proved Probable Combined Tonnes Grades Tonnes Grades Tonnes Grades Metal Mt g/t Au % Cu Mt g/t Au % Cu Mt g/t Au % Cu Moz Au kt Cu West Dome Open Pit - - - 90.6 0.46 0.05 90.6 0.46 0.05 1.4 45 Main Dome Underground - - - 3.6 1.33 0.31 3.6 1.33 0.31 0.2 11 Dump Leach - - - 2.0 0.19 - 2.0 0.19 - 0.0 - Stockpiles 1.9 0.69 0.13 20.6 0.33 0.04 22.5 0.36 0.05 0.3 11 Telfer Total 1.9 0.69 0.13 116.8 0.46 0.06 118.7 0.46 0.06 1.8 68 Havieron Total - - - 38.5 2.63 0.33 38.5 2.63 0.33 3.3 128 Group Total 1.9 0.69 0.13 155.3 1.00 0.12 157.2 0.99 0.12 5.0 196