The website of the Finnish Federation lists three national exhibitions that are coming up:
TAVASTEX 22 will take place from 9 to 11 September 2022 in Hämeenlinna, organised by the local stamp club.
RIIHEX 2023 is scheduled for 24-26 March 2023, at the Riihimäki Sports Hall, organised by Riihimäki Postmarkkeilijät and Hyvinkää Postimerkkikerho. All competition classes are invited, along with a master class and a free class, where it is possible for any material to be presented with no regulations. More on the exhibition website: www.riihex2023.fi
Finally, the Joensuu Postimerkkikerho r.y. club has announced a national stamp exhibition at Joensuu between 12-13 April 2024.