Capella Minerals Limited has applied for an Exploration Reservation ("Perho") covering an area of 50 sq km over the Eräjärvi Lithium-Cesium-Tantalum ("LCT") pegmatite field in southern Finland. The Perho Reservation covers the Seppälä lithium occurrence and lies adjacent to the former Viitaniemi and Juurakko feldspar-quartz(-lithium) mines, which are reported by the Finnish geological survey ("GTK") to have ceased production in 1965 and 1935, respectively. Significantly, more than 70 pegmatite dykes, enriched in B, Be, Li, Nb, Sn and Ta, are reported from the area (Eilu 2012, Lahti 1981, Aviola 2004).

Little modern systematic exploration for lithium deposits has been undertaken in the area. The new Perho Reservation has been applied for by local subsidiary Cullen Finland Oy, which is currently owned 70:30 by Capella and ASX-listed Cullen Resources Ltd. Cullen Finland Oy is also owner of the Katajavaara-Aaeknus gold-copper project in the highly-prospective Central Lapland Greenstone Belt.