Finland, Sep 6, 2011 - Metsä-Botnia, part of Metsäliitto Group, is participating in a feasibility study with energy companies Gasum and Helsingin Energia into constructing a biorefinery for biogas production in Joutseno, southeastern Finland. If realised, the biorefinery would produce biogas from renewable wood raw material for transmission to usage sites such as Helsinki Energy’s Vuosaari power plant via the Finnish natural gas network.