Gold Mountain Limited · ASX:GMN
Gold Mountain — Investor Presentation (August 2025)
34 slides from Gold Mountain's investor presentation, Aug 11, 2025
Slide 1: Brazilian Critical Minerals for the Clean Energy Transition
GOLD MOUNTAIN ASX: GMN For personal use only Brazilian Critical Minerals for the Clean Energy Transition ASX: GMN / PRESENTATION / FEBRUARY 2025
Slide 2: Competent Person Statement, Important Notice & Disclaimer
Competent Person Statement, Important Notice & Disclaimer • The information regarding exploration results presented in this document has arising in connection with it. been reviewed by Peter Temby, a Member of the Australian Institute of Geoscientists, who confirms they have sufficient relevant expe
Slide 3: GMN Brazilian Projects
For personal use only GMN BRAZILIAN PROJECTS RARE EARTH ELEMENTS LITHIUM COPPER
Slide 4: GMN Projects Overview: REE, Niobium, Phosphate and Gold
GMN Projects | Overview |REE, Niobium, Phosphate and Gold Gold Mountains has secured a large footprint in two emerging Rare Earth hotspots in Brazil. The company is now well-positioned to capitalise on its prime location and the For personal use only surging demand for Rare Earth Elements (REE). The
Slide 5: GMN Projects Overview: Lithium - Tungsten
GMN Projects | Overview Lithium - Tungsten • The Lithium Valley Project • Targets for Diamond drilling identified at the high-priority Bananal Valley and For personal use only Agua Boa prospects • Pipeline of major anomalies • Drill permitting underway • Juremal Project • Spodumene identified in hig
Slide 6: GMN Projects Overview: Copper – Gold - Tungsten
GMN Projects | Overview Copper – Gold - Tungsten For personal use only • The Ararenda Project • Targets for IP identified at the high-priority Geochem anomalies and IP quoted • Pipeline of major anomalies • Soil program ready to implement • Iguatu Project • Copper, Gold and Tungsten identified in hi
Slide 7: The Down Under Project
The Down Under Project Situated in the Jequié Region and next door to Brazilian Rare Earths (ASX: BRE) high-grade Monte Alto Project, which has captured the market's attention with results of tens of % TREO*, Gold Mountains' flagship Down Under Rare Earth Project is For personal use only primed to c
Slide 8: The Down Under Project
The Down Under Project Situated next door to Brazilian Rare Earths (ASX: BRE) high-grade Monte Alto Project, which has captured the market's attention with results of tens of % TREO*, Gold Mountains' flagship Down Under Rare Earth Project is primed to capitalise on a first-class location. An orienta
Slide 9: Down Under Drill Targets
DOWN UNDER | Drill Targets • Diamond Drill targets defined by For personal use only reconnaissance Auger Drilling on high order Stream Sediment anomalies. • Auger sample profiles assessed for the intersected interval, amount of preservation of the weathering profile and continuity of potential ore h
Slide 10: Jequié Region Extensive Metallurgy
Jequié Region | Extensive Metallurgy • Extensive metallurgy conducted on region deposits For personal use only CIA % • Ore extracted with ammonium sulphate with 100 adjustment to pH 4. Economic level recoveries recorded in test work 95 • Deleterious U and Th not extracted from the REE ore by ammoniu
Slide 11: Down Under Drill Target IR-1
DOWN UNDER | Drill Target IR - 1 For personal use only Mineralisation open to depth and all directions TREO Mineralisation greater than the cut off grade of 400 ppm TREO and greater than 200 ppm TREO-CeO2 in red Chemical Index of Alteration (CIA) shown in green; CIA generally reduces systematically
Slide 12: Irajuba drill hole assay table
MREO/ HREO TREO- Nd2O3+ Dy2O3+ MREO Hole No Interval TREO MREO TREO- /TREO- CIA Ce2O3 Pr6O11 Tb4O7 /TREO CeO2 CeO2 from to metres ppm ppm ppm % % ppm ppm % % IR-AD240013 5 15 10 1929 1386 962 64 24 557 49.2 90 49.9 IR-AD240445 4 8 4 2179 1615 1143 71 33 638.8 61.2 92 52.5 IR-AD250065 3 10 7 1863 128
Slide 13: Down Under Exploration Targets IR-1
DOWN UNDER | Exploration Targets IR - 1 Exploration Targets are pre-resource estimates of what may be present based on knowledge at the time. For personal use only IR – 1 Resource targets based on reconnaissance drilling carried out using machine powered shell augers, on mapping of lateritised surfa
Slide 14: Down Under Drill Target IR-1
DOWN UNDER | Drill Target IR - 1 For personal use only Reconnaissance drilling can find mineralised profiles within the anomalous catchments. Diamond drilling can penetrate the entire weathering profile and demonstrate potential resources Hard rock targets are very likely to be surrounded by larger
Slide 15: Target Types and Scales
TARGET Types and Scales Three target types are present in the Jequie REE Province IAC Target – very large, simple to find with stream For personal use only sediment sampling , then reconnaissance auger drilling anomalies, then diamond drilling to determine resources. This target is amenable to low O
Slide 16: Downunder Project Irajuba Prospect
Downunder Project | Irajuba Prospect • The Irajuba Prospect is defined by major structurally controlled zones of REE anomalies For personal use only • IR-AD240070 with 20 metres @ 1,282 ppm TREO from 5 metres depth • IR-AD250065 with 7 metres @ 1,863 ppm TREO from 4 metres depth • IR-AD240013 with 1
Slide 17: Araxá Rare Earth–Niobium Project
Araxá Rare Earth–Niobium Project Right: The Araxá Mine The Araxá Rare Earth–Niobium Project is located in Below: Tenements along 125° degree the Alto Paranaíba Igneous Province, close to Araxá, For personal use only lineament. an area known worldwide for its rich mineral resources. Araxá is home to
Slide 18: Araxá Rare Earth–Niobium Project Geology
Araxá Rare Earth–Niobium Project | Geology For personal use only • Carbonatites in the Araxá region host deposits of niobium, phosphate, barite, vermiculite, titanium and gem quality olivine. • Distributed along the 125 degree lineament, a major focus of alkaline magmatism • Linear NW trending dykes
Slide 19: Araxá REE–Niobium Project Exploration
Rare Earth–Niobium Araxá REE–Niobium ProjectProject | Exploration • Araxá Mine is the principal model for exploration at Araxá Project. For personal use only • Exploration strategy is to rapidly cover tenements with stream sediments and then locate specific areas to auger & diamond drill. • Magnetic
Slide 20: Araxá Rare Earth–Niobium Project Exploration
For personal use only Araxá Rare Earth–Niobium Project | Exploration • Magnetic image shows high responses over known carbonatites such as at the Araxá Mine (94% of world reserves of Nb). • GMN interpreted structural, radiometric and magnetic signatures common to known carbonatites and generated sim
Slide 21: Araxá REE - Niobium Project
Araxá REE - Niobium Project For personal use only • GMN tenement in relation to total gradient magnetic field and to known mineralisation, related to the Serra Negra carbonatite complex. • Carbonatites in the Araxá region host deposits of niobium, phosphate, barite, vermiculite, titanium and gem qua
Slide 22: Araxá Stream Sediment Sampling Program
Araxá Stream Sediment Sampling Program Araxá For personal use only • Araxá – Niobium-REE targets at early stage exploration, with combined radiometric, magnetic and structural targets identified. Next steps complete regional sampling, reconnaissance drilling and resource drilling on highly ranked ta
Slide 23: Laterite IAC v Hard rock Mine Costs
Laterite IAC v Hard rock Mine Costs IAC deposits are low capex compared to most hard rock deposits, low environmental impact and simple metallurgy compared to hard rock deposits. CAPEX and OPEX For personal use only The Araxá project in Brazil has a LoM (life of mine) of 40 years and overall total i
Slide 24: GMN Lithium and Copper Portfolio
For personal use only GMN Lithium and Copper Portfolio RARE EARTH ELEMENTS LITHIUM COPPER
Slide 25: Lithium Projects
Lithium Projects Gold Mountain has several Lithium Projects across Brazil, including the Lithium Valley Project, which consists of 46 tenements in one of the most sought-after addresses in lithium exploration: Brazil's Lithium Valley. GMN's neighbours include For personal use only Atlas Lithium, Sig
Slide 26: Lithium Valley Project Exploration
Lithium Valley Project | Exploration Targeting : For personal use only • Structural approach • Mapping, magnetics, radiometrics and topography • Pegmatites and pathfinder minerals present • Numerous NE trending corridors identified • Latin Resources Colina deposit located on a NE trending “lithium c
Slide 27: Lithium Valley Project Exploration: Agua Boa Prospect
Lithium Valley Project | Exploration Agua Boa Prospect : For personal use only • Structural approach • Mapping, magnetics, radiometrics and topography • Pegmatites and pathfinder minerals present • Numerous NE trending corridors identified • Latin Resources Colina deposit located on a NE trending “l
Slide 28: Lithium Valley Project Exploration: Agua Boa Prospect
Lithium Valley Project | Exploration Agua Boa Prospect: For personal use only • Drill holes shown over the lithium and tin anomalies in the southern part of the Agua Boa tenement. • This map shows drill holes and lithium associated anomalies in the northern part of the Agua Boa tenement where lateri
Slide 29: Copper-Gold Projects
Copper-Gold Projects Gold Mountain has several projects in northern Brazil that are prospective for Copper and Gold mineralisation. The 2 main project areas: For personal use only • Iguatu region • 38 km2 Cu anomaly, potential open to north • 14 km2 Cu anomaly open to north • Cu-Ni anomaly identifie
Slide 30: Ararenda Copper-Gold Project
Ararenda Copper-Gold Project • Ore grade copper analysed, >1% plus 0.16 g/t Au For personal use only adjacent to GMN ground. • 3%+ chalcopyrite in rock estimated (Silva 2016). • Breccia hosted IOCG Style: median grade 1.1% Cu 0.48 Au, 120 mt (USGS 2007). • IP modelling of 70 million m3 of high charg
Slide 31: Copper-Gold Projects
Copper-Gold Projects Gold Mountain has several projects in northern Brazil that are prospective for Copper and Gold mineralisation. The 3 main project areas: For personal use only • Ararenda region • Licences surround known IOCG copper with economic grade reported • Stream sediment sampling complete
Slide 32: Ararenda Copper-Gold Project
Ararenda Copper-Gold Project For personal use only • GMN tenements surround the known mineralisation • IP close to GMN tenement boundary in the north; in the southeast IP extends into GMN tenement • Substantial areas of Fe alteration known in GMN tenements that have not been tested • Magmatism possi
Slide 33: References
References • GMN ASX Release 25 July 2025 First Soil Samples from the Agua Boa Tenement in the Lithium Valley Project show excellent results • GMN ASX Release 25 July 2025 Diamond Drilling Commenced on Irajuba Exploration Target • GMN ASX Release 21 July 2025 Exploration Target Defined at Irajuba •
Slide 34: References
• AL8 ASX Release 30 May 2024 Highly Anomalous Lithium in Itambacuri Stream Sediments, Minas Gerais, BrazilGMN ASX Release 23 February 2024 GMN secures ground near world’s largest Niobium producer • GMN ASX Release 1 December 2023 GMN Secures over 100,000 Ha in Premier Rare Earths rich region in Bra