Share Facebook Twitter Proventus and the o2 Group join to form o2 Produktion with the ambition to become a leading producer within renewable energy March 30, 2007 Proventus and the o2 Group join to form o2 Produktion with the ambition to become a leading producer within renewable energy (pdf) Proventus och o2 Gruppen bildar o2 Produktion med ambitionen att bli en ledande kraftproducent inom förnyelsebar energi (pdf) Please read and agree to the Terms & Conditions.