Both parties are appealing against various convictions in connection with the broad-ranging election funding scandal that enveloped the Regional Council of Southwest Finland late last decade.
The Court of Appeal will reconsider the issue of whether funds were illicitly used by the businessmen to effectively install a puppet government.
The district court sentenced both Merisalo and Yli-Saunamäki to long prison terms.
Both parties continue to deny having committed any crime.
