Metsä Board, a leading European manufacturer of premium virgin fiber board and part of the Metsä Group, is proud to present two of its folding boxboard grades - MetsäBoard Natural FBB and MetsäBoard Pro FBB OBAfree - and two food service grades - MetsäBoard Natural FSB Cup and MetsäBoard Pro FSB Cup - have now received NF T 51-800 certification for home compostability. The eco-barrier board from MetsäBoard Prime FBB EB already has this certification.