RTG Mining Inc. — Interim / Quarterly Report 2025

Oct 29, 2025

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SEPTEMBER 2025 QUARTERLY ACTIVITIES REPORT

ANNOUNCEMENT TO THE AUSTRALIAN SECURITIES EXCHANGE

30 OCTOBER 2025

HIGHLIGHTS

- – High Grade Mabilo Copper and Gold Project Philippines

• RTG Mining holds a 40% interest in Mt. Labo Exploration and Development Corporation (“Mt. Labo”) which owns the high-grade Mabilo Copper and Gold Project in the Philippines, together with a 2% Net Smelter Royalty and a loan of approximately US$27M, to be repaid out of the proceeds of the Stage 1 Direct Shipping Operation (‘DSO’).

• Continuing to Advance Towards Development: Good progress made on start-up critical path items, which should allow a commitment to development early in 2026.

• Key funding milestone delivered: Binding term sheet for finance and offtake executed for start-up of Stage 1 high-grade (21% Cu) DSO:

• Mt. Labo has entered into a strategic partnership with Glencore International AG (‘Glencore’) , one of the largest natural resource companies in the world, to finance 100% of the planned capital expenditure for Stage 1 of Mabilo.

• Mabilo DSO operation will access the primary source of ore being the 0.104 Mt of supergene chalcocite material at an average reserve grade of 20.7% Cu, expected to produce approximately 25,200 tonnes of copper, with an additional 52,900 ounces of gold from other products.

• Glencore has reconfirmed their commitment to working with Mt. Labo on the Mabilo Project financing and offtake.

• Additional drilling at the Mabilo Project : Drilling planned to target extensions to the highgrade chalcocite material for Stage 1 operations during next quarter.

– Chanach Gold and Copper Project Kyrgyz Republic

• RTG holds a majority stake (90%) in the high-grade Chanach Gold and Copper Project (‘Chanach Project’) in the Kyrgyz Republic.

• Chanach continued to demonstrate clear potential to host both a high-grade, large Copper – Gold Porphyry-Skarn system, potentially significantly larger than Mabilo, combined with a high-grade epithermal gold system. The broad spaced drilling campaign was highly successful hitting significant grades in just about every hole.

• During the quarter, the 2025 field season exploration campaign was completed with final assays received from 4,300m of diamond drilling. Results demonstrate the scale and highgrade nature of key targets within the Chanach Project, including the following highlights reported during the quarter:

• 59.9m @ 0.67% Cu from 9.6m in Hole DD25-01

• 3.4m @ 15.3g/t Au from 754.4m in Hole DD25-03

• 1.8m @ 7.51g/t Au from 773.2m in Hole DD25-03

• 3.1m @ 6.54g/t Au from 791.7m in Hole DD25-03

• 3.7m @ 12.47g/t Au from 174m in Hole DD25-07

• 4.5m @ 1.76g/t Au and 1.06% Cu from 32.8m in Hole DD25-07

• 7.8m @ 11.65g/t Au from 41m in Hole DD25-09

• 6.05m @ 9.23g/t Au from 31.4m in Hole DD25-11

• 1.7m @ 0.63% Cu from 242.9m in Hole DD25-12

• 25.9m @ 0.49% Cu from 62.1m in Hole DD25-13

• 5.4m @ 0.57% Cu from 263.4m in Hole DD25-13

• Over 200 geochemical samples were collected at the end of the field season. Assay results of the sampling and further interpretation will be conducted during the December quarter.

- Panguna Project Bougainville PNG

• RTG is the nominated development partner with the joint venture company established by the Special Mining Lease Osikaiyang Landowners Association (‘SMLOLA’) and Central Exploration Pty Ltd (‘Central’) in the Landowner proposal with respect to the redevelopment of the Panguna Copper-Gold Project located in the Central Region of the island of Bougainville, within the Autonomous Region of Bougainville, PNG.

• Congratulations to the Honourable President Ishmael Toroama for his re-election for a second term as President of the Autonomous Region of Bougainville, with a significant majority vote.

• The President has appointed a Caretaker Government with the Bougainville Executive Council until the full Cabinet of the Bougainville Executive Council is formed and has publicly confirmed his commitment to move forward with the redevelopment of Panguna to support the plans for full Independence.

• RTG continues to engage with the Toroama Government to evaluate how we can assist in their future plans for Bougainville, Bougainville Copper Limited (‘BCL’) and their people.

Corporate Summary

• Cash and liquid assets as of 30 September 2025 were A$13.9 million.

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RTG Mining Inc. ( ASX:RTG, TSX:RTG ) (‘RTG’ or ‘the Company’) is pleased to provide its quarterly activities report for the period ended 30 September 2025.

SUMMARY OF OPERATIONS

PHILIPPINES INTERESTS – THE MABILO COPPER AND GOLD PROJECT

Strategic Focus: Committed to DSO Start-up in 2026

RTG’s primary focus continues to be on advancing the Mabilo Project to start-up.

Importantly, the Mabilo Project has a significant advantage, with the first phase being a DSO operation, with limited capital expenditure requirements. In respect to the Stage 1 development, Mt. Labo has executed the binding finance and offtake term sheet to fund 100% of the planned capital expenditure. The Stage 1 development is underpinned by the primary source of ore being the 0.104Mt of supergene chalcocite material at an average reserve grade of 20.7% Cu.

The strong and collaborative working relationship with our joint venture partner, TVIRD has been very productive, and we continue to make strong progress in advancing the project to start-up.

Glencore Financing Agreement

As previously reported (see ASX announcement dated 6 March 2025), Mt. Labo entered into a strategic partnership with Glencore to finance 100% of the planned capital expenditure for Stage 1 of Mabilo. The secured financing facility provides for a total of up to US$30M (in three-tranches), on attractive terms, for the development of Stage 1 of the Mabilo Project as well as working capital requirements:

• Tranche A (for US$3.5M) provides early funding flexibility to complete Stage 1 project land acquisition, with limited conditions precedent;

• Tranche B provides US$21.5M for the balance of development of Stage 1 of the Project together with any working capital needs; and

• Tranche C provides US$5.0M for any additional working capital purposes subject to consent of both parties

With important financing milestones now in place, the key remaining tasks to address and complete prior to a commitment to development are to finalise the land acquisition program for surface rights and permitting for coconut tree felling.

RTG conducts fortnightly meetings with the senior management of TVIRD, and good progress continues to be made towards the completion of start-up plans.

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Mabilo Project: Background Summary

Mt. Labo has secured the Mining Permit, the successful Final Award in the SIAC matter, won the Setting Aside action of Galeo Equipment Corporation (‘Galeo’) in Singapore and has executed the binding debt finance and offtake term sheet to fund 100% of the planned capital development budget for start-up of Stage 1 of the Mabilo Project.

• The Villar Family, our partner in the Mabilo Project, is one of the most prominent families in the Philippines and RTG is pleased to partner with them in the development of the Mabilo Project, which is a significant mining project for the country.

• RTG will have 40% of Mt. Labo; a 2% net smelter royalty; RTG’s loans to Mt. Labo, currently in the order of US$27 million (A$42.8 million), will be repaid early out of the proceeds of Stage 1, the DSO, subject to customary requirements to address liquidity and ongoing operations of Mt. Labo and repayment of external debt to finance Stage 1 of the project.

• Mt. Labo received written confirmation in May 2020 that the MGB has approved the consolidation of the current Mineral Production Sharing Agreement No. MLC-MRD-459 for the Nalesbitan Project to include the Mabilo Project, having already secured an approved Declared Mine Feasibility Study and Environmental Clearance Certificate for the Project.

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Figure 1: Consolidated MPSA Showing Included Parcels of Land

Exploration and Development Activities

Resource Extensions

No exploration activities were undertaken during the September quarter but planning has been ongoing for further drilling.

The next round of exploration, expected to commence during the December quarter, will likely focus primarily on sterilization drilling and extensions to the oxide reserve and resource.

An important follow-up drilling program will be undertaken in due course on the porphyry target located under volcanic cover between the South Mineralised Zone and the East Mineralised Zone and extension drilling of the skarn system along strike, with additional infill drilling in the inferred material.

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The porphyry target is well supported by mineralized porphyry veins (b-veins) that have been intercepted in the resource drilling, combined with increasing intensity of calc-silicate alteration and the trending of metallogenic vectors.

Mabilo Mineral Resource

Table 1 - Total Mabilo Resource at 0.3 g/t Au Cut-off Grade

Mineral Resource Estimate Results - Reporting at 0.3 g/t Au lower cut-off - Mabilo South and North Deposits

							Contained	Contained	Contained
		Million
Classification	Weathering		Cu %	Au g/t	Ag g/t	Fe %	Au	Cu	Fe
		Tonnes
							('000s Oz)	('000s t)	('000s t)
Indicated	Oxide + Supergene	0.78	4.1	2.7	9.7	41.2	67.1	32.1	320.8
Indicated	Fresh	8.08	1.7	2.0	9.8	46.0	510.5	137.7	3,713.7
Indicated	Total All Materials	8.86	1.9	2.0	9.8	45.6	577.6	169.8	4,034.5
Inferred	Oxide + Supergene	0.05	7.8	2.3	9.6	26.0	3.5	3.7	12.3
Inferred	Fresh	3.86	1.4	1.5	9.1	29.1	181.5	53.3	1,121.8
Inferred	Total All Materials	3.91	1.5	1.5	9.1	29.0	184.9	57.0	1,134.1
Note: The Mineral Resource was estimated within constraining wireframe solids based on the mineralised geological units. The
Mineral Resource is quoted from all classified blocks above a lower cut-off grade 0.3 g/t Au within these wireframe solids.
Differences may occur due to rounding

Mabilo Mineral Reserves

Mineral Reserves are quoted within specific pit designs based on Indicated Resources only and take into consideration the mining, processing, metallurgical, economic and infrastructure modifying factors.

Table 2 - Probable Mineral Reserve Estimate

Ore	Ore						Waste	Strip Ratio
Class	Type	Mt	Fe %	Aug/t	Cu %	Ag g/t	Mt
Probable	Gold Cap Supergene Oxide Skarn Fresh	0.351 40.1 3.11 0.38 3.26 0.104 36.5 2.20 20.7 11.9 0.182 43.6 2.52 4.17 19.9 7.155 45.9 1.97 1.70 8.73					77.713	10.0
Total Probable Ore		7.792 45.5 2.04 1.95 8.79

The November 2015 Resource estimation provided by CSA classified the Resource for the Mabilo Project as Indicated and Inferred. Only Indicated Mineral Resources as defined in NI 43-101 were used to establish the Probable Mineral Reserves. No Reserves were categorised as Proven.

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KYRGYZ REPUBLIC INTERESTS – THE CHANACH PROJECT

RTG holds a 90% interest in the Chanach Project.

Highlights of the Chanach Project include:

• Existing high-grade JORC compliant Inferred Mineral Resource of 2.95 Mt @ 5.11 g/t Au for 484,000 ounces of Au and 17.23 Mt @ 0.37% Cu for 64,000t of Cu[1] (141.1 Mlbs Cu) from only limited drilling to date

• Favourable acquisition cost of US$3.65 / ounce of Gold and US$0.0063 / pound of copper

• 2025 drilling campaign successfully completed and continued to highlight strong copper-gold potential across multiple zones within Chanach

• Assays from 4,300m of diamond drilling further demonstrate the scale and high-grade nature of key targets within the Chanach Copper-Gold Project area

• A three-year renewal of the Exploration Licence has been finalised and granted. The Exploration Licence was issued by the State Committee of Industry, Energy and Subsoil Use of the Kyrgyz Republic.

The Chanach Project is located in the prolific southern Tien Shan metallogenic belt, which runs more than 1,500 km from Uzbekistan through to China and hosts one of the world’s largest open pit gold mines, Murantau (175 Moz[2] ) with production believed to be in the order of 2 million ounces per annum[2] .

The Chanach Project has extensive outcropping mineralised geology with high-grade gold veins from surface and significant gold and copper Inferred Mineral Resources. Trenching and sampling was completed in previous years, with the 3DIP and 2DIP programs undertaken during the last field season. The Chanach Project area is highly prospective for world class epithermal gold, porphyry copper-gold and polymetallic skarn deposits already identified.

To date the limited exploration activities have defined an Inferred Mineral Resource of 2.95 Mt @ 5.11 g/t Au for 484,000 ounces of Au and 17.23 Mt @ 0.37% Cu for 64,000t of Cu .

1 The Mineral Resource estimates were originally compiled and announced by White Cliff Minerals Ltd (“WCN”) on 30 May 2018, in accordance with the JORC Code, 2012 and was last disclosed in WCN’s March, 2019 quarterly report on 30 April 2019 - https://www.asx.com.au/asxpdf/20190430/pdf/444pg6f8t5ln5t.pdf

2 Wilde, A. and Gilbert, D. 2000. Setting of the giant Muruntau Gold Deposit: Implications for ore genesis. In: (Ed.) Gordon Lister, Geological research for the exploration industry, Journal of the Virtual Explorer, Electronic Edition, ISSN 1441-8142, volume 1, paper 1, doi:10.3809/jvirtex.2000.00004

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Figure 2: Chanach Project Location

Exploration and Development Activities

2025 Field Season: Drilling Program Highlights Prospectivity and Scale

A 4,300m drilling program was completed during the September Quarter[3] , providing further structural information and significant grade hits on key target areas, including the 2DIP and 3DIP interpretation from last field season’s work, mapped skarn mineralisation and a quartz vein 170m outside the existing 500,000 ounce inferred gold resource.

3 This report contains information extracted from ASX market announcements reported in accordance with JORC Code, 2012 Edition. Further details, including JORC Code, 2012 Edition reporting tables, where applicable, can be found in the ASX announcements lodged by RTG on 1 September 2025 and 30 September 2025. Copies of these announcements are also available on the Company’s website (https://www.rtgmining.com/drilling-continues-to-unlock-chanach-copper-gold-explorationpotential/ and https://www.rtgmining.com/drilling-highlights-chanach-copper-gold-exploration-and-resource-potential/)

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Figure 3: Tenement Map showing 2025 drill hole locations

Diamond Drilling Summary

By the end of September, all diamond drilling for 2025 had been completed; along with the logging and assaying of all core. Further analysis and interpretation will be conducted during the December Quarter.

Over two hundred (200) geochemical samples were collected during September. Assays and analysis of the results will also be conducted in the December Quarter.

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Geophysical Target: Exciting Copper Potential

Hole DD25-01 intercepted a large oxide copper zone on the southern edge of the northern chargeable anomaly.

Only one hole has been drilled into this area, but the potential extent of the area can be seen from previous channel sampling and soil sampling with dimensions up to 600m long and 40m wide.

This is an exciting area for copper mineralisation and requires further targeted drilling.

Hole DD25-03 intercepted gold mineralisation at depth on the periphery of the main chargeable IP anomaly and is possibly associated with brecciation of the host rock. These intercepts represent a strong gold target and need to be further drilled both up dip and along strike.

Hole DD25-01

• 59.9m @ 0.67% Cu from 9.6m including: o 3.9m @ 1.35% Cu from 11.4m;

• 5.0m @ 1.34% Cu from 16m;

• 2.2m @ 2.16% Cu from 32m; and

• 2.0m @ 1.09% Cu from 52.3m

Hole DD25-03

• 1.0m @ 0.90g/t Au from 570.5m

• 3.4m @ 15.3g/t Au from 754.4m

• 1.8m @ 7.51g/t Au from 773.2m

• ▪ 3.1m @ 6.54g/t Au from 791.7m

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Figure 4: Showing Potential Oxide Copper Zone Intercepted by DD25-01

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Blind Magnetic Target

Hole DD25-04 targeted a blind magnetic feature immediately adjacent to the large IP anomaly. The hole was very successful with several high-grade gold intercepts. This area represents another strong gold target that needs more follow-up.

Hole DD25-04

• 2.0m @ 2.24g/t Au from 123.9m

• ▪ 1.2m @ 5.00g/t Au from 193m

• 1.0m @ 1.25g/t Au from 320m

Skarn Targets

To date over 6.5km of anomalous skarn mineralisation has been mapped at the Chanach Project. These structures remain open to the west.

Hole DD25-07 was drilled into the Eastern skarn zone and returned a high-grade gold intercept. This zone can be traced for over 500m and is an exciting target for high grade gold resources.

Hole DD25-09 was drilled into the Central Skarn Zone (testing the depth extent of previous high grade trench samples) and returned high grade gold and copper at shallow depths (~30m) and a broad high grade gold intercept below the gold/copper zone.

Again, this zone can be traced for greater than 300m and represents another exciting highgrade copper and gold target that needs follow up drilling.

Hole DD25-07

• 3.7m @ 12.47g/t Au from 174m (Eastern Skarn Target)

Hole DD25-09

• 4.5m @ 1.76g/t Au and 1.06% Cu from 32.8m (Central Skarn Target) including: o 1.1m @ 3.83g/t Au and 2.4% Cu from 36.2m

• ▪ 7.8m @ 11.65g/t Au from 41m (Central Skarn Target)

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Figure 5: Tenement Map Showing Key Mineralised Areas and Initial Results from 2025 Drilling Campaign

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Geophysical Target: Growing Copper Potential Warrants Follow-up Campaign

Holes DD25-12 and DD25-13 were drilled as a follow up to DD25-01 which intercepted a large oxide copper zone on the southern edge of the northern chargeable anomaly. Both holes intercepted broad anomalous copper zones which further shows the size and prospectivity of this area.

The three holes that have been drilled into this area, show the potential extent of the area, which can be seen from previous channel sampling and soil sampling with dimensions up to 600m long and 40m wide. This is an exciting area for copper mineralisation and requires further targeted drilling.

Figure 6 shows the position and possible extent of the copper zone, along with the intercepts so far. Best intercepts from the two holes include:

Hole DD25-12

• 21 .9m @ 0.39% Cu from 9.6m including:

• 2.9m @ 0.62% Cu from 66m

• 3.5m @ 0.35% Cu from 229.5m

• 1.7m @ 0.63% Cu from 242.9m

Hole DD25-13

• 1. 10m @ 0.41%Cu from 30.6m

• 25.9m @ 0.49% Cu from 62.1m including o 1.0m @ 1.10% Cu from 62.1m

• 1.2m @ 1.06% Cu from 86.8m

• 16.8m @ 0.44% Cu from 241.5m

• 5.4m @ 0.57% Cu from 263.4m

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Figure 6: Showing Potential Oxide Copper Zone Intercepted by DD25-01, DD25-12 and DD25-13

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Figure 7: Tenement Map Showing Key Mineralised Areas and Key Results from 2025 Drilling Campaign

High-Grade Gold Vein: Exciting Potential to Grow Existing Gold Resource

The western side of the tenement hosts a series of epithermal gold veins. There is currently a JORC compliant Inferred Mineral Resource of 2.95 Mt @ 5.11 g/t Au for 484,000 ounces of Au . The resource is associated with a series of quartz veins and is open along strike and down dip.

Further highlighting the exciting potential of this region, there remains several untested veins that have been mapped. Figure 8 shows some of these veins both tested and untested.

DD25-11 was drilled on an untested vein approximately 170m away from the main resource area and intercepted three veins of high-grade gold as outlined below:

Hole DD25-11

• 0.50m @ 10.2g/t Au from 6.55m

• 6.05m @ 9.23g/t Au from 31.4m including:

• 2.65m @ 17.85g/t Au from 32.6m

• ▪ 1.00m @ 6.43g/t Au from 51m.

Figure 9 shows a cross-section of the intercepted veins and distance from main resource veins.

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Figure 8: Gold Resource Area Showing Tested and Untested Quartz Veining and DD25-11

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Figure 9: Cross Section of DD25-11 showing distance from main Resource Area

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BOUGAINVILLE INTERESTS – THE PANGUNA PROJECT OPPORTUNITY

RTG is the nominated development partner with the joint venture company established by the SMLOLA and Central in the Landowner proposal with respect to the redevelopment of the Copper-Gold Panguna Project located in the Central Region of the island of Bougainville, within the Autonomous Region of Bougainville, PNG. RTG owns just under 70% of Central, with additional loans to Central that can be converted to increase our interest. The proposal, being led by the SMLOLA, is a landowner initiative and will be subject to the success or otherwise of the SMLOLA in securing a role in the redevelopment of the mine and the minerals which are owned by the landowners exclusively represented by the SMLOLA.

The members of the SMLOLA are the owners of the customary land which is the subject of the old Panguna open pit mine, and in which the mineral resources of the Panguna mine are located.

The ABG and PNG Governments have announced that the holding of PNG in BCL is currently being transferred to the ABG, which will leave the ABG with just under 73% of BCL and should significantly assist with moving the Panguna Project forward.

We extend our congratulations to the Honourable President Ishmael Toroama for his re-election for a second term as President of the Autonomous Region of Bougainville, with a significant majority vote.

The President has appointed a Caretaker Government with the Bougainville Executive Council until the full Cabinet of the Bougainville Executive Council is formed and has publicly confirmed his commitment to move forward with the redevelopment of Panguna to support the plans for full Independence.

RTG continues to engage with the Toroama Government to evaluate how we can assist in their future plans for Bougainville, BCL and their people.

CORPORATE SUMMARY

Cash and liquid assets as at 30 September 2025 were A$13.9 million.

During the quarter, payments to related parties of the Company totalled US$145,216 for Directors’ remuneration, which included salary, fees and superannuation.

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ABOUT RTG MINING INC

RTG Mining Inc. is a mining and exploration company listed on the main board of the Toronto Stock Exchange and the Australian Securities Exchange. RTG is currently focused primarily on progressing the Mabilo Project to start-up having now received a mining permit for the Project, with a view to moving quickly and safely to a producing gold and copper company.

RTG also has several exciting new opportunities including the Panguna Project in Bougainville, which it remains committed to while also considering further new business development opportunities.

RTG has an experienced management team which has to date developed seven mines in five different countries, including being responsible for the development of the Masbate Gold Mine in the Philippines through CGA Mining Limited. RTG has some of the most respected international institutional investors as shareholders including Equinox Partners and Franklin Templeton.

ENQUIRIES

President & CEO – Justine Magee Tel: +61 8 6489 2900 Email: jmagee@rtgmining.com

Australian Investor and Media Contact

Sam Burns: +61 400 164 067 Email: sam.burns@sdir.com.au

CAUTIONARY NOTE REGARDING FORWARD LOOKING STATEMENTS

The Toronto Stock Exchange has not reviewed nor does it accept responsibility for the accuracy or adequacy of this press release, which has been prepared by management.

This announcement includes certain “forward-looking statements” within the meaning of Canadian securities legislation including, among others, statements made or implied relating to the interpretation of exploration results, accuracy of mineral resource and mineral reserve estimates, parameters and assumptions used to estimate mineral reserves and mineral resources, realization of mineral reserve and mineral resource estimates, estimated economic results of the Mabilo Project, future operational and financial results, including estimated cashflow and the timing thereof, estimated expenditures, expansion, exploration and development activities and the timing thereof, including expectations regarding the DSO, plans for progressing Stage 2 development, completion of a debt funding package, the negotiation of contracts for start-up works and offtake arrangements and the completion of merged documentation, RTG’s objectives, strategies to achieve those objectives, RTG’s beliefs, plans, estimates and intentions, and similar statements concerning anticipated future events, results, circumstances, performance or expectations. All statements, other than statements of historical fact, included herein, are forward-looking statements. Forward looking statements generally can be identified by words such as “objective”, “may”, “will”, “expected”, “likely”, “intend”, “estimate”, “anticipate”, “believe”, “should”, “plans”, or similar expressions suggesting future outcomes or events. Forward-looking statements involve various risks and uncertainties and are based on certain factors and assumptions. There can be no assurance that such 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 RTG’s expectations include uncertainties related to fluctuations in gold and other commodity prices and currency exchange rates; uncertainties relating to interpretation of drill results and the geology, continuity and grade of mineral deposits; uncertainty of estimates of capital and operating costs, recovery rates, production estimates and estimated economic return; the need for cooperation of government agencies in the development of RTG’s mineral projects; the need to obtain additional financing to develop RTG’s mineral projects; the possibility of delay in development programs or in construction projects and uncertainty of meeting anticipated program milestones for RTG’s mineral projects and other risks and uncertainties as discussed in RTG’s annual report for the year ended December 31, 2024 and detailed from time to time in our ‐ other filings with the Canadian securities regulatory authorities available at www.sedar.com. The forward looking statements made in this announcement relate only to events as of the date on which the statements are made. ‐ RTG will not release publicly any revisions or updates to these forward looking statements to reflect events, circumstances or unanticipated events occurring after the date of this announcement except as required by law or by any appropriate regulatory authority.

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QUALIFIED PERSON AND COMPETENT PERSON STATEMENT

The information in this release that relates to Exploration Results and Mineral Resource Estimates of the Chanach Project is based upon information compiled, reviewed and approved by Elizabeth Haren who is a Qualified Person under National Instrument 43-101 – Standards of Disclosure for Mineral Projects (“ NI 43-101 ”) and a Competent Person as defined in the 2012 Edition of the ‘Australasian Code for Reporting of Exploration Results, Mineral Resources and Ore Reserves’ who is a Member and Chartered Professional of the Australian Institute of Mining and Metallurgy and a Member of the Australian Institute of Geoscientists. Elizabeth Haren is employed by Haren Consulting Pty Ltd and is a consultant to RTG. Elizabeth Haren has sufficient experience that is relevant to the style of mineralisation and type of deposit under consideration and to the activity being undertaken to qualify as a Competent Person and a Qualified Person for the purposes of NI 43-101. Elizabeth Haren consents to the inclusion in the release of the matters based on her information in the form and the context in which it appears.

The information in this release that relates to Exploration Results during the 2024 Field Work and Mineral Resource Estimates of the Chanach Project is based upon information compiled, reviewed and approved by Viktor Zabolotny who is a Qualified Person under National Instrument 43-101 – Standards of Disclosure for Mineral Projects (“ NI 43101 ”) and a Competent Person as defined in the 2012 Edition of the ‘Australasian Code for Reporting of Exploration Results, Mineral Resources and Ore Reserves’ who is a Member and Chartered Professional of the Australian Institute of Mining and Metallurgy and a Member of the Australian Institute of Geoscientists. Viktor Zabolotny is employed by BW Three Holdings Ltd and is a consultant to RTG. Viktor Zabolotny has sufficient experience that is relevant to the style of mineralisation and type of deposit under consideration and to the activity being undertaken to qualify as a Competent Person and a Qualified Person for the purposes of NI 43-101. Viktor Zabolotny consents to the inclusion in the release of the matters based on her information in the form and the context in which it appears.

The information in this release that relates to Exploration Targets of the Chanach Project is based upon information compiled, reviewed and approved by Greg Hall who is a Qualified Person under NI 43-101 and a Competent Person as defined in the 2012 Edition of the ‘Australasian Code for Reporting of Exploration Results, Mineral Resources and Ore Reserves’ who is a Member and Chartered Professional of the Australian Institute of Mining and Metallurgy and a Member of the Australian Institute of Geoscientists. Greg Hall is employed by Golden Phoenix International Pty Ltd and is a consultant to RTG. Greg Hall has sufficient experience that is relevant to the style of mineralisation and type of deposit under consideration and to the activity being undertaken to qualify as a Competent Person and a Qualified Person for the purposes of NI 43-101. Greg Hall consents to the inclusion in the release of the matters based on his information in the form and the context in which it appears.

The information in this release that relates to exploration results at the Mabilo Project is based upon information prepared by or under the supervision of Robert Ayres BSc (Hons), who is a Qualified Person and a Competent Person. Mr Ayres is a member of the Australian Institute of Geoscientists. Mr Ayres has sufficient experience that is relevant to the style of mineralisation and type of deposit under consideration and to the activity being undertaken, to qualify as a Competent Person as defined in the 2012 Edition of the “Australasian Code for Reporting of Exploration Results, Mineral Resources and Ore Reserves” and to qualify as a “Qualified Person” under National Instrument 43-101 – Standards of Disclosure for Mineral Projects (“NI 43-101”). Mr. Ayres has verified the data disclosed in this release, including sampling, analytical and test data underlying the information contained in the release. Mr. Ayres consents to the inclusion in the release of the matters based on his information in the form and the context in which it appears.

The information in this release that relates to Mineral Resources is based on information prepared by or under the supervision of Mr Aaron Green, who is a Qualified Person and Competent Person. Mr Green is a Member of the Australian Institute of Geoscientists and is employed by CSA Global Pty Ltd, an independent consulting company. Mr Green has sufficient experience that is relevant to the style of mineralisation and type of deposit under consideration and to the activity which he is undertaking to qualify as a Competent Person as defined in the 2012 Edition of the “Australasian Code for Reporting of Exploration Results, Mineral Resources and Ore Reserves” and to qualify as a “Qualified Person” under National Instrument 43-101 – Standards of Disclosure for Mineral Projects (“NI 43-101”). Mr. Green has verified the data disclosed in this release, including sampling, analytical and test data underlying the information contained in the release. Mr Green consents to the inclusion in the release of the matters based on his information in the form and context in which it appears.

The information in this release that relates to Mineral Reserves and Mining is based on information prepared by or under the supervision of Mr Carel Moormann, who is a Qualified Person and Competent Person. Mr Moormann is a Fellow of the AusIMM and is employed by Orelogy Consulting, an independent consulting company. Mr Moormann has sufficient experience that is relevant to the type of deposit under consideration and to the activity which he is undertaking to qualify as a Competent Person as defined in the 2012 Edition of the “Australasian Code for Reporting of Exploration Results, Mineral Resources and Ore Reserves” and to qualify as a “Qualified Person” under National Instrument 43-101 – Standards of Disclosure for Mineral Projects (“NI 43-101”). Mr Moormann has verified the data disclosed in this release, including sampling, analytical and test data underlying the information contained in the

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release. Mr Moormann consents to the inclusion in the release of the matters based on his information in the form and context in which it appears.

The information in this release that relates to Metallurgy and Processing is based on information prepared by or under the supervision of David Gordon, who is a Qualified Person and Competent Person. David Gordon is a Member of the Australasian Institute of Mining and Metallurgy and is employed by Lycopodium Minerals Pty Ltd, an independent consulting company. David Gordon has sufficient experience that is relevant to the type of process under consideration and to the activity which he is undertaking to qualify as a Competent Person as defined in the 2012 Edition of the “Australasian Code for Reporting of Exploration Results, Mineral Resources and Ore Reserves” and to qualify as a “Qualified Person” under National Instrument 43-101 – Standards of Disclosure for Mineral Projects (“NI 43-101”). David Gordon has verified the data disclosed in this release, including sampling, analytical and test data underlying the information contained in the release. David Gordon consents to the inclusion in the release of the matters based on his information in the form and context in which it appears.

The information in this release that relates to areas outside of exploration results, Mineral Resources, Mineral Reserves and Metallurgy and Processing is based on information prepared by or under the supervision of Mark Turner, who is a Qualified Person and Competent Person. Mark Turner is a Fellow of the Australasian Institute of Mining and Metallurgy and is employed by RTG Mining Inc, the Company. Mark Turner has sufficient experience that is relevant to the information under consideration and to the activity which he is undertaking to qualify as a Competent Person as defined in the 2012 Edition of the “Australasian Code for Reporting of Exploration Results, Mineral Resources and Ore Reserves” and to qualify as a “Qualified Person” under National Instrument 43-101 – Standards of Disclosure for Mineral Projects (“NI 43-101”). Mark Turner has verified the data disclosed in this release. Mark Turner consents to the inclusion in the release of the matters based on his information in the form and context in which it appears.

The information in this release based on historic and public information on the Panguna Project has been compiled and reviewed by Mark Turner, who is a Qualified Person and Competent Person. Mark Turner is a Fellow of the Australasian Institute of Mining and Metallurgy and is employed by RTG Mining Inc, the Company. Mark Turner has sufficient experience that is relevant to the information under consideration and to the activity which he is undertaking to qualify as a Competent Person as defined in the 2012 Edition of the “Australasian Code for Reporting of Exploration Results, Mineral Resources and Ore Reserves” and to qualify as a “Qualified Person” under National Instrument 43-101 – Standards of Disclosure for Mineral Projects (“NI 43-101”). Mark Turner consents to the inclusion in the release of the matters based on his information in the form and context in which it appears.

For the ASX Feasibility Study announcement including JORC tables please refer to the RTG Mining website (www.rtgmining.com) and on the ASX, under announcements (www.asx.com.au).

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Appendix 1 – Schedule of interests and location of Tenements

Tenement reference	Location	Nature of interest	Interest at beginning of quarter	Interest at end of quarter
Licence 6771 AP	Kyrgyzstan	Chanach Project	90%	90%
Consolidated MPSA No. MLC-MRD-459 (Renewal) Amended I includes: Parcel 1 – MPSA No. MLC-MRD-459 (Renewal) Parcel 2 – formerly EP-014-2013-V Parcel 3 – formerly EXPA-000188-V Parcels 4/5 – formerly EXPA-000209-V	Philippines	RTG’s interest is held through its interest in its associate entity Mt. Labo Exploration and Development Corporation. Mabilo Project and Nalesbitan Project	40%	40%
APSA-002-V	Philippines	Nalesbitan Project	40%	40%
EP-019-2021-V (formerly EXPA-000231-V and approved 16 April 2021)	Philippines	Mabilo Project	40%	40%
Exploration Permit Application (“EXPA”) 118- XI	Philippines	RTG’s interest is held through its interest in its associate entity Bunawan Mining Corporation.	40%	40%
APSA-003-XIII	Philippines		40%	40%
EXPA-037A-XIII	Philippines		40%	40%
EP 033-14-XIII	Philippines	RTG’s interest is held through its interest in its associate entity Bunawan Mining Corporation. (EP 033-14-XIII is subject to 2ndrenewal and EP- 001-06-XI is an approved 1st renewal EP)	40%	40%
EP-001-06-XI	Philippines		40%	40%
EP-01-10-XI	Philippines	RTG’s interest is held through its interest in its associate entity Oz Metals Exploration & Development Corporation. (Both EP-02-10-XI and EP-01-10-XI are subject to 2ndrenewal)	40%	40%
EP-02-10-XI	Philippines		40%	40%
EXPA-123-XI	Philippines		40%	40%

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Rule 5.5

Appendix 5B

Mining exploration entity or oil and gas exploration entity quarterly cash flow report

Name of entity RTG Mining Inc. ABN Quarter ended (“current quarter”) 70 164 362 850 30 September 2025

Consolidated statement of cash flows	Current quarter $US	Year to date (nine months) $US
1. Cash flows from operating activities 1.1 Receipts from customers 1.2 Payments for (a) exploration & evaluation (if expensed) (b) development (c) production (d) staff costs (e) administration and corporate costs (f) business development (g) Chanach Project 1.3 Dividends received (see note 3) 1.4 Interest received 1.5 Interest and other costs of finance paid 1.6 Income taxes paid 1.7 Government grants and tax incentives 1.8 Other 1.9 Net cash from / (used in) operating activities	- (667,847) - - (251,857) (377,843) (235,229) (107,061) - 3,260 - - - -	- (976,124) - - (583,148) (685,465) (941,245) (290,382) - 3,859 - - - -
	(1,636,577)	(3,472,505)

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Appendix 5B

Mining exploration entity or oil and gas exploration entity quarterly cash flow report

2. Cash flows from investing activities 2.1 Payments to acquire or for: (a) entities (b) tenements (c) property, plant and equipment (d) exploration & evaluation (if capitalised) (e) investments (f) other non-current assets (g) other 2.2 Proceeds from the disposal of: (a) entities (b) tenements (c) property, plant and equipment (d) investments (e) other non-current assets 2.3 Cash flows from loans to other entities 2.4 Dividends received (see note 3) 2.5 Other – increase in term deposit 2.6 Net cash from / (used in) investing activities	- - - - - - - - - - - - (102,573) - (1,931,447)	- - (3,750) - - - - - - - - - (251,100) - (1,931,447)
	(2,034,020)	(2,186,297)
3. Cash flows from financing activities 3.1 Proceeds from issues of equity securities (excluding convertible debt securities) 3.2 Proceeds from issue of convertible debt securities 3.3 Proceeds from exercise of options 3.4 Transaction costs related to issues of equity securities or convertible debt securities 3.5 Proceeds from borrowings 3.6 Repayment of borrowings 3.7 Transaction costs related to loans and borrowings 3.8 Dividends paid 3.9 Other - lease liability payment 3.10 Net cash from / (used in) financing activities	- - - (25,715) - - - - (27,752)	12,183,541 - - (303,826) - - - - (71,722)
	(53,467)	11,807,993

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Appendix 5B

Mining exploration entity or oil and gas exploration entity quarterly cash flow report

4. Net increase / (decrease) in cash and cash equivalents for the period
4.1 Cash and cash equivalents at beginning of period 4.2 Net cash from / (used in) operating activities (item 1.9 above) 4.3 Net cash from / (used in) investing activities (item 2.6 above) 4.4 Net cash from / (used in) financing activities (item 3.10 above) 4.5 Effect of movement in exchange rates on cash held 4.6 Cash and cash equivalents at end of period1	10,941,281 (1,636,577) (2,034,020) (53,467) 58,598	736,526 (3,472,505) (2,186,297) 11,807,993 390,098
	7,275,815	7,275,815

1 Total does not include balances currently on term deposit (equivalent to US$1.9 million) that are not classified as cash and cash equivalents under the Company’s adopted accounting standards.

5. Reconciliation of cash and cash equivalents at the end of the quarter (as shown in the consolidated statement of cash flows) to the related items in the accounts	Current quarter $US	Previous quarter $US
5.1 Bank balances 5.2 Call deposits 5.3 Bank overdrafts 5.4 Other (provide details) 5.5 Cash and cash equivalents at end of quarter (should equal item 4.6 above)1	7,275,815 - - -	10,941,281 - - -
	7,275,815	10,941,281

1 Total does not include balances currently on term deposit (equivalent to US$1.9 million) that are not classified as cash and cash equivalents under the Company’s adopted accounting standards.

6. Payments to related parties of the entity and their associates	Current quarter $US
6.1 Aggregate amount of payments to related parties and their associates included in item 1 145,216 6.2 Aggregate amount of payments to related parties and their associates included in item 2 - Note: if any amounts are shown in items 6.1 or 6.2, your quarterly activity report must include a description of, and an explanation for, such payments.	145,216
	-

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Appendix 5B

Mining exploration entity or oil and gas exploration entity quarterly cash flow report

7. 7.1 7.2 7.3 7.4 7.5 7.6	Financing facilities Note: the term “facility’ includes all forms of financing arrangements available to the entity. Add notes as necessary for an understanding of the sources of finance available to the entity. Total facility amount at quarter end $US Amount drawn at quarter end $US Loan facilities - - Credit standby arrangements - - Other (please specify) - - Total financing facilities - - Unused financing facilities available at quarter end Include in the box below a description of each facility above, including the lender, interest rate, maturity date and whether it is secured or unsecured. If any additional financing facilities have been entered into or are proposed to be entered into after quarter end, include a note providing details of those facilities as well.	Total facility amount at quarter end $US	Amount drawn at quarter end $US
		-	-
		-	-
		-	-
		-	-
	Description of loan facility in 7.1 above:
8.	Estimated cash available for future operating activities		$US
8.1 8.2 8.3 8.4 8.5 8.6 8.7 8.8	Net cash from / (used in) operating activities (item 1.9) (1,636,577) (Capitalised exploration & evaluation classified as investing activities) (item 2.1(d)) - Total relevant outgoings (item 8.1 + item 8.2) (1,636,577) Cash and cash equivalents at quarter end (item 4.6) 7,275,815 Unused finance facilities available at quarter end (item 7.5) - Adjusting: Term deposit not considered cash and cash equivalents but will contribute to future funding 1,931,447 Total available funding (item 8.4 + item 8.5 + adjusting entry) 9,207,262 Estimated quarters of funding available (item 8.6 divided by item 8.3) 5.63 Note: if the entity has reported positive relevant outgoings (ie a net cash inflow) in item 8.3, answer item 8.7 as “N/A”. Otherwise, a figure for the estimated quarters of funding available must be included in item 8.7. If item 8.7 is less than 2 quarters, please provide answers to the following questions: 8.8.1 Does the entity expect that it will continue to have the current level of net operating cash flows for the time being and, if not, why not?		(1,636,577) - (1,636,577) 7,275,815 -
			1,931,447
			9,207,262
	Answer: N/A

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Appendix 5B

Mining exploration entity or oil and gas exploration entity quarterly cash flow report

• 8.8.2 Has the entity taken any steps, or does it propose to take any steps, to raise further cash to fund its operations and, if so, what are those steps and how likely does it believe that they will be successful?

Answer:

N/A

• 8.8.3 Does the entity expect to be able to continue its operations and to meet its business objectives and, if so, on what basis?

Answer:

N/A

Note: where item 8.7 is less than 2 quarters, all of questions 8.8.1, 8.8.2 and 8.8.3 above must be answered.

Compliance statement

• 1 This statement has been prepared in accordance with accounting standards and policies which comply with Listing Rule 19.11A.

• 2 This statement gives a true and fair view of the matters disclosed.

Date: 30 October 2025

Authorised by: By the Board of Directors

(Name of body or officer authorising release – see note 4)

Notes

1. This quarterly cash flow report and the accompanying activity report provide a basis for informing the market about the entity’s activities for the past quarter, how they have been financed and the effect this has had on its cash position. An entity that wishes to disclose additional information over and above the minimum required under the Listing Rules is encouraged to do so.

2. If this quarterly cash flow report has been prepared in accordance with Australian Accounting Standards, the definitions in, and provisions of, AASB 6: Exploration for and Evaluation of Mineral Resources and AASB 107: Statement of Cash Flows apply to this report. If this quarterly cash flow report has been prepared in accordance with other accounting standards agreed by ASX pursuant to Listing Rule 19.11A, the corresponding equivalent standards apply to this report.

3. Dividends received may be classified either as cash flows from operating activities or cash flows from investing activities, depending on the accounting policy of the entity.

4. If this report has been authorised for release to the market by your board of directors, you can insert here: “By the board”. If it has been authorised for release to the market by a committee of your board of directors, you can insert here: “By the [ name of board committee – eg Audit and Risk Committee ]”. If it has been authorised for release to the market by a disclosure committee, you can insert here: “By the Disclosure Committee”.

5. If this report has been authorised for release to the market by your board of directors and you wish to hold yourself out as complying with recommendation 4.2 of the ASX Corporate Governance Council’s Corporate Governance Principles and Recommendations , the board should have received a declaration from its CEO and CFO that, in their opinion, the financial records of the entity have been properly maintained, that this report complies with the appropriate accounting standards and gives a true and fair view of the cash flows of the entity, and that their opinion has been formed on the basis of a sound system of risk management and internal control which is operating effectively.

ASX Listing Rules Appendix 5B (17/07/20)

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• See chapter 19 of the ASX Listing Rules for defined terms.