The Kaustinen Lithium Province is considered to be the largest lithium district in northern Europe

17 larger spodumene pegmatite deposits discovered with dozens of smaller occurrences.

Little to no exploration conducted outside the known prospects.

Exploration activities to date indicate the phenomenal lithium potential of our tenements

• Existing geochemical and geological data has been remodelled to define the first areas for exploration licences.
• Stakeholder engagement in the Kaustinen area 2023 and 2024. Local people support mining.
• 14 exploration licenses granted and submitted, total 122 km².
• 4,000 Bottom-of-Till (BOT) samples analysed from the first priority prospects.
• Boulder hunting, trenching and mapping resulted in over 400 spodumene boulders discovery.
• Extensive and systematic geochemical anomalies, numerous spodumene boulders and first pegmatite dykes have already been located in the first three more closely studied prospect areas.
• Maiden drilling and trenching proved the exploration concept and led to discovery of several spodumene pegmatite intersections.
• Drilling to be continued in Q2/2025 the priority targets along with BOT sampling to define new drilling targets.

Integrating high-quality regional datasets to prospect scale knowledge

Basemap: Aerogeophysical magnetic map (GTK)

Spodumene pegmatites occur as dike swarms with individual dykes up to 400m long

• Occur in schist belts composed of mica schist, graphite schists and intermediate-mafic volcanic rocks
• Intruded both conformably with the host lithologies and sharply cross-cutting along shear zones.
• Occur as dike swarms with individual dykes up to 400m long and 30m thick. Deepest intersections so far at 200m depth.
• Mineralogy compliant with Lithium-Caesium-Tantalum (LCT) pegmatities.
• Spodumene is the economic mineral.
• Spodumene grain length vary from <5 cm to >70 cm.
• Age of the spodumene pegmatites is 1,790 Ma.

PHOTO: Abundant >0.5 m long spodumene crystals in a typical boulder from the Nikula prospect

Over 400 new spodumene pegmatite boulders found across Arvo’s tenement areas

Glacially transported boulder fans demonstrate the occurrence of numerous undiscovered spodumene pegmatite dykes.

Boulders in many areas are large and angular indicating short transport distance from the source pegmatites.

Boulders in some areas contain abundant (from 20 up to 50 vol-%) large grain spodumene.

Extensive number of spodumene-rich boulders show high lithium content.

Over 4,000 BOT samples collected across our high priority prospects

Rock chips from top of bedrock surface are collected simultaneously with till during BOT sampling.

Li correlates with Cs and more sporadically with Sn, Be, Ta and Nb. Extensive and systematic geochemical anomalies, numerous spodumene boulders and first pegmatite dykes have already been located in the studied areas.

Maiden shallow drilling over 3,000m across 26 holes at Jäneslampi in Q4 2024

Drilling of Li anomalies showed pegmatite intersections in majority of the holes.

Some intersections contained abundant (ca. 30%) spodumene over the distance of up to 8m.

Two Li-pegmatite vein systems identified with potential for more based on surficial data.

Drilling at depth to be continued in

Q3 2025

Funded for 20,000m of drilling and further studies

Drilling of priority targets to be continued in Q2/2025 along with BOT sampling, geophysics and field work in new licence areas.