Metsa will increase its capex fourfold in 2015, on the back of the expansion of its folding boxboard production capacities. March 27, 2015 - Most European paper and forest product companies will maintain or increase their capital expenditure in 2015 to meet their expansion plans, says Moody's Investors Service in a sector comment published on March 25. These include Metsa Board Corporation , Mondi Plc , Sappi Limited , Smurfit Kappa Group Plc , Stora Enso Oyj and UPM-Kymmene .