Not just in CUL's opinion but clearly stated in the 2015 GTK...

Not just in CUL's opinion but clearly stated in the 2015 GTK report page 25 :

6 LITHIUM POTENTIAL IN THE KAUSTINEN AREA BASED ON REGIONAL
TILL GEOCHEMISTRY
A regional distribution map of Li in till geochemistry is presented in Figure 13. A part of the known Li deposits and occurences (Leviäkangas, Rapasaaret, Jänislampi, Emmes) are well reflected in the till geochemistry, whereas Outovesi, Syväjärvi and Länttä deposits do not show as well. The results indicate that outside the lithium province (Länttä-Vintturi-Emmes area), there are many areas with high Li contents in till. The largest anomalous area locates NW of the Jänislampi-Emmes area. In particular, the Kaitfors-Rasmus region and the area around Rita village have high potential. The same areas also show some high Be contents in till. In the area of Alikylä-Emmes, Tunkkari-Kortjärvi and Liedes, there are Li anomalies that might relate to an unknown Li pegmatite.

http://tupa.gtk.fi/julkaisu/tutkimusraportti/tr_220.pdf

This is a substantial and detailed report in which, based on the data, the authors suggest/infer 'high potential' for Li deposits 'outside' the Keliber Oy owned regions.

dyor.