31 Oct 2018 --- Pulp and paper supplier Stora Enso has increased its ownership stake in Sweden-based Cellutech from 22 percent to 100 percent in a move reflecting its goal of replacing fossil-based materials with renewable ones originating from wood. Cellutech specializes in the development of new materials and applications based on cellulose, micro-fibrillated cellulose (MFC) and other wood-based components.