Announcement PDF 1 WESTERN QUEEN UPDATED SCOPING STUDY SHOWS IMPROVED GOLD PRODUCTION AND LONGER LIFE ASX RELEASE I XX October 2026 Rumble Resources Limited / ASX:RTR ABN 74 148 214 260 www.rumbleresources.com.au Head Office Level 1, 52 Kings Park Rd West Perth, WA 6005 Contact Us T. +61 8 6555 3980 E. info@rumbleresources.com.au ASX:RTR Western Queen Scoping Study ASX RELEASE I 28 OCTOBER 2026 HIGHLIGHTS • Longer life & more gold - The Updated Scoping Study on the Western Queen Gold Project demonstrates the potential for a significantly longer mine life and more than double the gold production, compared to the November 2025 Western Queen South Scoping Study1 • High-grade zone - In addition to the Western Queen South deposit, the updated development plan includes the Western Queen Central deposit, where a high-grade Indicated Resource of 129kt @ 11.6 g/t Au for 48,000oz has been identified situated directly below the historical underground workings • Higher grade Resource with more Indicated - The Study is based on a revised Mineral Resource Estimate of 3.92Mt @ 3.1g/t Au for a total of 393,100oz contained gold, which includes 1.87Mt @ 3.7g/t Au for 223,800oz in higher-confidence Indicated Resources2 • Five-year tolling agreement - Under the Toll Milling and Blending Agreement with Gylden Resources Pty Ltd (“Gylden”) and Kirkalocka Gold SPV Pty Ltd3 , ore will be toll treated at Gylden’s Kirkalocka plant, approximately 185km southeast of Western Queen • Enhancing economics with tungsten - Work is now focused on incorporating the tungsten resources into the mine plan which could add a valuable additional revenue stream. Initial metallurgical test work and preliminary marketing discussions indicate that a saleable scheelite concentrate can be produced4 • Next Steps - various work streams are progressing, with next steps including a Feasibility Study incorporating the tungsten, metallurgical testwork to confirm the gold and tungsten recoveries, sourcing finance, obtaining all regulatory approvals, and progressing to a Final Investment Decision. Cautionary Statements The Updated Scoping Study referred to in this announcement has been undertaken to assess the potential viability of an underground mining operation at the Western Queen Project. It is a preliminary technical and economic assessment of the potential viability of the Project and has been prepared to an accuracy level of +/- 30%. The Study is based on low level technical and economic assessments that are not sufficient to support the estimation of Ore Reserves. Further evaluation work and studies will be required before estimating any Ore Reserves or providing any assurance of an economic development case. 1 Refer to Rumble ASX release 27 Nov 2025 “Western Queen South Scoping Study Highlights Robust Underground Mining Project” 2 Refer to Rumble ASX release 28 October 2026 “Western Queen Gold MRE Optimised for Underground Mining Study” 3 Refer to Rumble ASX release 19 May 2026 “Toll Milling and Blending Agreement for Western Queen gold ore executed with Gylden and Kirkalocka Gold” 4 Refer to Rumble ASX release 25 March 2026 “Excellent Metallurgical Results for Western Queen Gold and Tungsten Project” 2 Rumble Resources Limited / ASX:RTR ABN 74 148 214 260 www.rumbleresources.com.au Head Office Level 1, 52 Kings Park Road West Perth, WA 6005 Contact Us T. +61 8 6555 3980 E. info@rumbleresources.com.au ASX:RTR The Production Target and forecast financial information derived from the Production Target generated by the Updated Scoping Study is based upon 80% Indicated Mineral Resource category material and 20% Inferred Mineral Resource category material (by mass). Investors are cautioned that there is a low level of geological confidence associated with Inferred Mineral Resources and there is no certainty that further exploration work will result in the determination of Indicated Mineral Resources or that the forecast Production Target will be realised. The Updated Scoping Study is based on the material assumptions outlined in this announcement. These include assumptions about the gold recoveries and availability of funding. While Rumble considers all of the material assumptions to be based on reasonable grounds, there is no certainty that they will prove to be correct or that the range of outcomes indicated by the Updated Scoping Study will be achieved. This announcement and the Updated Scoping Study have been prepared in compliance with the JORC Code and the ASX Listing Rules and with reference to ASX Guidance Note 31, ASX November 2016 Interim Guidance Note on “Reporting scoping studies” and ASIC Regulatory Guide 170. All material assumptions on which the forecast financial information is based have been made on reasonable grounds. The material assumptions are set out in this announcement. The Company believes that it has a reasonable basis for providing the forward-looking statements and the forecast financial information. While the Company considers all the material assumptions to be based on reasonable grounds, there is no certainty that they will prove to be correct or that the range of outcomes indicated by the Updated Scoping Study will be achieved. Given the uncertainties involved, investors should not make any investment decisions based solely on the results of the Updated Scoping Study. Details Rumble Resources (“Rumble” or the “Company”) (ASX: RTR) is pleased to report results from the Western Queen Updated Scoping Study (the “Updated Scoping Study” or “the “Study”) on the Western Queen Gold Project (“Western Queen” or the “Project”). Western Queen is located approximately 90km northwest of Mount Magnet in Western Australia and contains resources totalling 393,100oz Au at 3.1g/t Au. The Study is based on underground mining of the Western Queen South and Central Resources, with toll processing at Gylden’s Kirkalocka processing facility. Key Findings Key findings from the Western Queen Updated Scoping Study are: • Resources utilised - The Study considers underground mining of the Western Queen South and Central Resources using uphole stoping with paste fill due to simple, steep-dipping deposit geometry • Production Target - 1.2Mt at 3.2g/t for 125koz contained gold over an initial production period of almost four years at a production rate of approximately 30kt mineralised material per month when at full production; • Processing - Mineralised material will be blended and toll treated at Kirkalocka on a campaign basis in 75,000 tonne batches. Historical production and metallurgical testwork indicates recoveries of 90-94% gold are achievable, while the Study has assumed a conservative 92% recovery given that that the ore will be blended (more testwork is required to confirm recoveries for the blended ore); • Economics - Free cash flow of $133M, a pre-tax NPV (at 8% discount rate) of $86M and an IRR of 45% at a gold price of A$5,714/oz5; • All in sustaining costs - A$4,390/oz gold sold; • Low upfront capital ~$8M; and • Potential to extend mine life - Only approximately 30% of the current Mineral Resource at Western Queen is included in the mining production target of this Study, providing additional opportunities to extend Project life and life of mine (LOM) production. 5 Refer to the economic parameters and design assumptions described in this release. 3 Rumble Resources Limited / ASX:RTR ABN 74 148 214 260 www.rumbleresources.com.au Head Office Level 1, 52 Kings Park Road West Perth, WA 6005 Contact Us T. +61 8 6555 3980 E. info@rumbleresources.com.au ASX:RTR Rumble’s Managing Director Peter Harold commented: “The Updated Scoping Study demonstrates the potential of the Western Queen Gold Project. Since the release of the November 2025 Scoping Study, the Rumble team and our consultants have worked to advance the project towards development. Significant milestones achieved include the signing of the Toll Milling and Blending Agreement, the updated Mineral Resource Estimate, and grant of regulatory permits to commence dewatering of the Western Queen South open pit. The work on the mine plan has shown there is a significant amount of tungsten co-mingled with the gold mineralisation and without a tungsten circuit at Kirkalocka this potentially valuable revenue stream will not be captured. Hence why we are now incorporating the tungsten mineralisation into the mine plan as part of the Feasibility Study that we have commenced. Our primary focus remains advancing Western Queen towards production. To that end we continue to progress development work streams, targeting completion of the Feasibility Study incorporating the tungsten to enhance the project economics, securing finance, obtaining all regulatory approvals, and ultimately the Rumble Board making the Final Investment Decision.” Updated Scoping Study Executive Summary Contributors The Western Queen Updated Scoping Study was undertaken by Rumble, with contributions from subject experts where appropriate. Study contributors include: AREA CONTRIBUTOR Mineral Tenure Rumble Geology and Exploration Rumble Mineral Resource Estimation Shaun Searle, Ashmore Advisory Pty Ltd Geotechnical Peter O’Bryan and Associates Hydrology AECOM Stope Design AMC Consultants Development Design Baybridge Mining Services Mine Schedule Baybridge Mining Services Metallurgical Testwork ALS Metallurgy Project Infrastructure Rumble Environment and Permitting Dr Michelle Carey Capital and Operating Cost Estimates Contractor Quotes and Industry Costs Financial Model Rumble 4 Rumble Resources Limited / ASX:RTR ABN 74 148 214 260 www.rumbleresources.com.au Head Office Level 1, 52 Kings Park Road West Perth, WA 6005 Contact Us T. +61 8 6555 3980 E. info@rumbleresources.com.au ASX:RTR Location and Ownership The Western Queen Project is located within the Shire of Yalgoo, approximately 90km northwest of Mount Magnet in Western Australia. Access to the project is via the unsealed Dalgaranga - Mount Magnet Road, then by an 11km unsealed private road to the mine area (see Figure 1). Mineral tenure over the Project comprises granted Mining Leases M59/45 and M59/208, and Miscellaneous Licence L59/40 held outright by Western Queen Pty Ltd, which is a 100% wholly owned subsidiary of Rumble. Rumble acquired the Project from Ramelius Resources Limited in August 2020. The Western Queen tenements fall within the Meka Pastoral Lease. The Project lies within the Wajarri Yamatji Part A Native Title determined area (WCD2017/007), although the mining leases were granted prior to the Native Title Act 1993 (Cth) coming into effect. Figure 1: Western Queen tenure and location, relative to Kirkalocka History The shallow, high-grade, orogenic gold deposits at Western Queen were first discovered and developed in the 1930s. Modern mining at the project has been undertaken by Equigold NL and subsidiaries of Harmony Gold and Ramelius Resources. The most recent mining comprised open cut operations by Ramelius Resources, which were completed in 2014. Historical production from the Western Queen Central and South pits to that time totalled 880,000 tonnes at 7.6 g/t Au for 215,000 ounces. 5 Rumble Resources Limited / ASX:RTR ABN 74 148 214 260 www.rumbleresources.com.au Head Office Level 1, 52 Kings Park Road West Perth, WA 6005 Contact Us T. +61 8 6555 3980 E. info@rumbleresources.com.au ASX:RTR Regional Geology The Western Queen tenements lie within the Archaean Warda Warra Greenstone Belt, a north trending enclave within the Murchison Province of the Yilgarn Craton. The belt is situated in the far western sector of the Cue 1:250,000 geological map. The Murchison Province has and continues to be a prolific gold producer with over 35 million ounces of gold defined or mined from areas including Never Never-Gilbeys, Mt Magnet, Cue, Mt Gibson, Meekatharra, and Plutonic. The Warda Warra Greenstone Belt is approximately 35km in length and is up to 7km wide. The north striking and steeply west dipping Warda Warra Greenstone Belt is a layered sequence that has been metamorphosed to amphibolite grade and is enveloped by recrystallised granitoids. The Western Queen deposits sit on a major regional shear system, similar to the structurally controlled high-grade deposits at Ramelius Resources’ 3.0Moz Dalgaranga Project, 48km to the southeast. Western Queen remains largely untested along strike and at depth, presenting strong exploration upside (see Figure 2). Figure 2: Western Queen Project – Tenure, Resources, Prospectivity over 1VD RTP Magnetics 6 Rumble Resources Limited / ASX:RTR ABN 74 148 214 260 www.rumbleresources.com.au Head Office Level 1, 52 Kings Park Road West Perth, WA 6005 Contact Us T. +61 8 6555 3980 E. info@rumbleresources.com.au ASX:RTR Deposit Geology and Mineralisation At Western Queen, the geology is steep westerly dipping and comprises intercalated sheared amphibolites of mafic to ultramafic composition with thin iron formation horizons, komatiitic basalt, dolerite sills, and talc chlorite schists. Later dolerite and pegmatitic felsic intrusives cut across the amphibolites and gold mineralisation. Structurally, the gold occurrences are interpreted to be associated with D4 shear zones, sub-parallel to isoclinal upright north striking F3 folds. The north striking and west dipping layered sequence has been metamorphosed to amphibolite and locally garnet amphibolite grade and is enveloped by recrystallised granitoids. A later phase of retrograde metamorphism has altered the mineralogy. Mineralisation is associated with sheared silica-sulphide zones with an ultramafic footwall and a mafic hanging wall. The mineralised zone is strongly recrystallised and massive, comprising phlogopite-chlorite-tremolite-talc schist, amphibolite with lenticular quartzo-feldspathic layering and quartz-muscovite-biotite-sillimanite schist. Pyrite, pyrrhotite, chalcopyrite, molybdenite and scheelite are present. Depth of complete oxidation is approximately 30 to 60m with depth to fresh rock approximately 45 to 80m. A zone of lacustrine sediments up to 45m thick overlies the Western Queen South deposit (Figure 3). Long sections through the deposits show the plunging nature of the mineralisation (Figure 4 and Figure 5). Figure 3: Western Queen South – Cross Section of Geology and MRE Block Model coloured by grade 7 Rumble Resources Limited / ASX:RTR ABN 74 148 214 260 www.rumbleresources.com.au Head Office Level 1, 52 Kings Park Road West Perth, WA 6005 Contact Us T. +61 8 6555 3980 E. info@rumbleresources.com.au ASX:RTR Figure 4: Western Queen South – long section showing drillhole locations and gold grade-thickness contours 8 Rumble Resources Limited / ASX:RTR ABN 74 148 214 260 www.rumbleresources.com.au Head Office Level 1, 52 Kings Park Road West Perth, WA 6005 Contact Us T. +61 8 6555 3980 E. info@rumbleresources.com.au ASX:RTR Figure 5: Western Queen Central – long section showing drillhole locations and gold grade-thickness contours Resources The Study is based on mining the Western Queen South and Central resources. The Mineral Resource Estimate (“MRE”) which underpins the Study has been publicly reported and prepared by Competent Persons as defined in the 2012 Edition of the Australasian Code for Reporting of Exploration Results, Mineral Resources and Ore Reserves (“JORC Code”). Details are included in Rumble’s ASX announcement of 28 October 2026. Following the 17,255m diamond drilling campaign completed between October 2025 and April 2026, the revised MRE (based on geological wireframes cut-off grade of 0.5g/t Au) increased to 5.13Mt @ 2.6g/t Au for a total of 433,600oz6, representing a 17% increase in overall contained gold compared to the July 2025 Resource estimate at the same cut-off grade. For the purposes of the Updated Scoping Study, the MRE was re-estimated using revised geological wireframes using a 1.0g/t Au cut-off grade. The resulting revised MRE is 3.92Mt @ 3.1g/t Au for a total of 393,100oz contained gold, which includes 1.87Mt @ 3.7g/t Au for 223,800oz in Indicated Resources7 (Table 1). The drilling also discovered a new high-grade zone of 129kt @ 11.6 g/t Au for 48,000oz at Western Queen Central which is situated directly below the historical underground workings. 6 Refer to Rumble ASX release dated 24 June 2026 “Western Queen Gold Resources upgrade to 433,600ozs” 7 Refer to Rumble ASX release dated 28 October 2026 “Western Queen Gold MRE Optimised for Underground Mining Study” 9 Rumble Resources Limited / ASX:RTR ABN 74 148 214 260 www.rumbleresources.com.au Head Office Level 1, 52 Kings Park Road West Perth, WA 6005 Contact Us T. +61 8 6555 3980 E. info@rumbleresources.com.au ASX:RTR Table 1: Western Queen Project Mineral Resources (as at October 2026)8 Mining The Scoping Study is based upon a simple underground design using uphole stoping with paste fill, with a cut-off grade of 1.7g/t Au, to mine the gold mineralisation delineated beneath the Western Queen South and Central open pits. It has been assumed that development and mining will be undertaken by a contractor with appropriate expertise in underground gold mining. The Company has sought expressions of interest from several suitable mining contractors and has been provided with indicative schedules of rates. The Production Target for the Western Queen Project is 1,220kt at 3.2g/t gold for 125kozs contained gold (Table 2). The production target comprises 80% Indicated Resources and 20% Inferred Resources (by mass). Investors are reminded that this Production Target is not an Ore Reserve estimate due to the inclusion of Inferred Resources and the lower level of confidence applied to scoping studies. Table 2: Key mine design physicals MATERIAL TYPE WASTE (t) ORE (t) GRADE (g/t) METAL (oz) Measured Resource - - - - Indicated Resource - 970,000 3.3 103,000 Inferred Resource - 250,000 2.7 22,000 Total 840,000 1,220,000 3.2 125,000 The tables may not sum, due to rounding differences. Block Model and Mine Design Parameters The block model used was created with 5m x 5m x 1m blocks, orientated to a strike of 020 degrees. The orebody wireframe was created at a cut-off grade of 1.0 g/t, with all material outside of this envelope assigned a zero grade. The decline was designed at 5.0 x 5.5m, with all other development at 4.5 x 5.0m. Levels were set 20m from floor to floor. All ground support was assumed to be with bolts and mesh to the grade line. The ore dilution for all ore drives was 2% (at 0.0 g/t Au) with a recovery of 99%. Stopes were designed with a minimum mining width of 2.5m. Stope dilution was set at 1.25m for the stope shapes, then a further 10% (at 0.0 g/t Au) with a recovery of 85%. Lateral development is assumed to be carried out with a twin boom jumbo for all development. Underground Mine Layout Primary access to the mine will be via a 1:7 decline developed from the Western Queen South (WQS) open pit. Access to Western Queen Central (WQC) will be via a 650m decline across from the WQS decline. 8 Refer to Rumble ASX release dated 28 October 2026 “Western Queen Gold MRE Optimised for Underground Mining Study” 10 Rumble Resources Limited / ASX:RTR ABN 74 148 214 260 www.rumbleresources.com.au Head Office Level 1, 52 Kings Park Road West Perth, WA 6005 Contact Us T. +61 8 6555 3980 E. info@rumbleresources.com.au ASX:RTR Emergency egress will be provided by a series of interconnected ladderways through decline accesses to an exit point located on the pit ramp on WQS. A second emergency egress system will be developed in WQC and will be connected to the surface via a 225m raisebore. Each active level will also be equipped with access to a suitable refuge chamber. Primary ventilation will be from a primary fan located on the pit ramp in WQS. The WQC vent circuit will exit through to the surface via 220m raisebore. The ventilation system will be connected to most of the stoping levels on the footwall drives. Ore will be hauled to a ROM pad located to the Southeast of the WQS pit (see Figure 6). From there the ore will be loaded into triple road trains for trucking to Kirkalocka. Waste will be placed on the waste dump located to the west of the Western Queen South open pit. Paste fill will be utilised and a paste plant will be located to the east of the Western Queen South open pit. Paste will be reticulated via a reticulation pipeline. Tailings for paste fill will be obtained from nearby mine sites with historic tailings stockpiles and back-hauled to site by the ore haulage contractors. Figure 6: Western Queen - Underground Design (section view) Mine Scheduling A life-of-mine schedule was developed based on the physical quantities derived from the underground designs (see Figure 7). The full mining schedule spans 52 months from decline portal commencement. The mining sequence has been designed to maximise monthly production. Decline development totals 3,500m and is scheduled at a monthly advance rate of 80m/month/decline with both Western Queen South and Western Queen Central being accessed by separate declines. First development ore is mined seven months after commencement of development. Initial stopes are mined eleven months after commencement of development, with full production of approximately 30kt per month achieved 14 months after commencement of development. The breakdown of contained gold in material mined by resource category is shown in (Figure 8). 11 Rumble Resources Limited / ASX:RTR ABN 74 148 214 260 www.rumbleresources.com.au Head Office Level 1, 52 Kings Park Road West Perth, WA 6005 Contact Us T. +61 8 6555 3980 E. info@rumbleresources.com.au ASX:RTR Figure 7: Material mined (tonnes per quarter) Figure 8: Contained gold in material mined by resource category 0.0 0.5 1.0 1.5 2.0 2.5 3.0 3.5 4.0 0 20,000 40,000 60,000 80,000 100,000 120,000 140,000 160,000 Dec-26 Mar-27 Jun-27 Sep-27 Dec-27 Mar-28 Jun-28 Sep-28 Dec-28 Mar-29 Jun-29 Sep-29 Dec-29 Mar-30 Jun-30 Sep-30 Dec-30 Mar-31 Jun-31 Sep-31 Dec-31 Gold Grade (g/t) Material Mined (tonnes) Material Mined and Gold Grade (Quarterly) Development Ore Mined Stope Ore Mined Gold Grade (Total) 0% 10% 20% 30% 40% 50% 60% 70% 80% 0 2,000 4,000 6,000 8,000 10,000 12,000 14,000 16,000 Dec-26 Mar-27 Jun-27 Sep-27 Dec-27 Mar-28 Jun-28 Sep-28 Dec-28 Mar-29 Jun-29 Sep-29 Dec-29 Mar-30 Jun-30 Sep-30 Dec-30 Mar-31 Jun-31 Sep-31 Dec-31 Contained Gold in Material Mined by JORC Category Indicated Inferred Percentage Inferred 12 Rumble Resources Limited / ASX:RTR ABN 74 148 214 260 www.rumbleresources.com.au Head Office Level 1, 52 Kings Park Road West Perth, WA 6005 Contact Us T. +61 8 6555 3980 E. info@rumbleresources.com.au ASX:RTR Equipment List All mining equipment will be provided by the mining contractor. An indicative equipment list required for the development and operation of the mining project comprises the following (Table 3): Table 3: Mining equipment list DESCRIPTION MAKE MODEL QTY Twin Boom Jumbo Sandvik DD422i 3 Longhole Rig Epiroc Simba H1257 1 Charge Up Rig Normet Charmec 2 Medium Underground Loader Caterpillar R1700 3 Underground Truck Caterpillar AD45 4 Grader Caterpillar 12H 1 Large Integrated Tool Carrier Volvo L120F 1 Flat Top Truck Hino 4x4 with Hiab 1 Light Vehicle – UG Toyota Landcruiser 6-9 Light Vehicle – Surface Toyota Hilux 4 Hiace Bus Toyota Hiace 1 Raise Drill 1 Personnel It is proposed that most of the personnel involved in the mining operations will be employed by the mining contractor (Figure 9). The Company will be responsible for key oversight and technical services roles, including a General Manager Operations with overall site accountability. Project manning is based on a 7 days per week / 24 hours per day operation with continuous 12-hour shifts. A four- panel roster is envisaged, with mining crews and management working even-time rosters. 13 Rumble Resources Limited / ASX:RTR ABN 74 148 214 260 www.rumbleresources.com.au Head Office Level 1, 52 Kings Park Road West Perth, WA 6005 Contact Us T. +61 8 6555 3980 E. info@rumbleresources.com.au ASX:RTR Figure 9: Mining workforce organisational chart (contractor) Metallurgical Testwork and Processing Rumble has entered into a Toll Milling and Blending Agreement (“TMBA”) with Gylden Resources Pty Ltd and Kirkalocka Gold SPV Pty Ltd for material from Western Queen to be toll treated at Gylden’s Kirkalocka plant, approximately 185km southeast of Western Queen. The Kirkalocka processing plant has a nominal capacity of 2.0Mtpa and comprises crushing, grinding, gravity, leaching and adsorption circuits, producing gold dore on site. Gylden is currently refurbishing the plant, which is scheduled to come on stream in early 2027. Key terms of the TMBA include: • Duration – the TMBA will run for 4 years and 11 months from the date the first parcel of Western Queen material is processed at Kirkalocka; • Milling campaigns – either blending 75,000 tonnes of Western Queen material with an equal amount from Gylden or an associated company, or running dedicated 150,000 tonne campaigns of 100% Western Queen material; • Milling Fees - competitive milling and blending fees fixed for calendar year 2027, and for subsequent years fees will be negotiated annually before the commencement of the next calendar year; • Other charges - additional costs for excess reagent or grinding media consumption, oversize material can be recovered. • Share of gold – Rumble to retain 100% of its share of the gold recovered from each campaign; and • Parties agree to negotiate in good faith the development of a facility for processing tungsten bearing ore from Western Queen at Kirkalocka should Rumble decide to mine tungsten bearing material. Project Manager 8:6 Alt Project Manager 8:6 Maintenance Foreman x 2 8:6 Leading Hand Fitter x 4 14:14 Shift Fitter x 4 14:14 Service Fitter x 12 14:14 Drill Fitter x 2 14:14 LV Fitter + Auto Sparky x 4 14:14 Storeman x 2 8:6 Project Foreman x 2 8:6 Shift Boss x 4 14:14 Development Twin Boom Jumbo Op x 12 14:14 Large Loader Op x 4 14:14 Nipper x 8 14:14 Production Production Driller x 4 14:14 Large Loader Op x 8 14:14 Truck Op x 16 14:14 Charge up / Mine Services Charge Up x 12 14:14 Paste/Service crew x 6 14:14 Grader Op x 2 14:14 Raise Drill Raise Driller x 4 14:14 Raise Drill Offsider x 4 14:14 Electrical Superintendent x 2 8:6 Shift electrician x 2 14:14 Safety / Training x 4 8:6 Engineers x 2 8:6 Admin x 2 8:6 14 Rumble Resources Limited / ASX:RTR ABN 74 148 214 260 www.rumbleresources.com.au Head Office Level 1, 52 Kings Park Road West Perth, WA 6005 Contact Us T. +61 8 6555 3980 E. info@rumbleresources.com.au ASX:RTR Figure 10: Kirkalocka process plant Gylden remain supportive of Rumble’s development plans for Western Queen and will continue working closely with Rumble to optimise the Western Queen Project economics with focus on: • developing flexible milling options and maximising gold recoveries: and • options to recover the tungsten including potentially building a tungsten processing circuit at Kirkalocka. Rumble and Gylden have been reviewing an initial high level tungsten process plant design which will be explored further with a detailed engineering study which will commence in the December quarter. Based on the expected mining rates in the Updated Scoping Study of approximately 360ktpa of mineralised material (approximately 30kt per month), and assuming a milling campaign size of 150kt and blending 50/50 Western Queen and Gylden ore, a campaign comprising Western Queen material would be treated every three months (i.e. four times per year). While historical production records from previous owners on Western Queen and Rumble metallurgical test work indicate recoveries of between 90-94% are achievable the Updated Scoping Study assumes a conservative gold 15 Rumble Resources Limited / ASX:RTR ABN 74 148 214 260 www.rumbleresources.com.au Head Office Level 1, 52 Kings Park Road West Perth, WA 6005 Contact Us T. +61 8 6555 3980 E. info@rumbleresources.com.au ASX:RTR recovery of 92% for fresh Western Queen material treated through the Kirkalocka plant. This is based on metallurgical test-work undertaken for Rumble by ALS Metallurgy on Western Queen South material to provide physical milling, leaching and reagent consumption characteristics required under the Toll Milling and Blending Agreement. A 360kg master sample with a head grade of 1.8g/t Au was composited from six mineralised intervals from the recent diamond drill program, collected along the strike of the main zone of unweathered mineralisation at Western Queen South. Key results from the testwork include: • Bond ball mill work index shows moderate hardness at 14.9 kWh/t; • Fast gold leach kinetics, with most of the gold leaching in the first 4 hours; • Combined gravity and cyanide leaching achieved 48-hour gold extractions of >95% at a grind P80 of 106µm. Extraction improved to 98% at a P80 of 53µm (Figure 11); and • Cyanide (0.45 to 0.65 kg/t) and lime consumptions (0.15 to 0.27 kg/t) were low in Perth tap water and a follow-up test in site water only increased lime consumption to 0.58 kg/t. Figure 11: Gold extraction by time for grind sizes of 53um, 106um and 150um Site Infrastructure Whilst the Project area is a brownfields site, there is minimal infrastructure and services on site. Key infrastructure requirements include dewatering infrastructure, diesel fuel storage, power generation, vehicle workshop and office facilities. Diesel fuel will be required for dewatering, mobile equipment and electrical power generation, with consumption at full production estimated to be 320kL per month when at full production. Diesel will be stored in a series of self- bunded tanks with capacity for 200kL. Major power items will be underground ventilation, dewatering pumps, and electrical underground equipment. The initial electrical load will be serviced by 2 x 500kVA synchronised diesel generators. As the mine workings increase and more equipment is introduced, additional generators will be required to service the load. An electr