Metsä Board Oyj, previously known as M-real Corporation, is a Finnish producer of fresh fibre paperboards including folding boxboards, food service boards and white kraftliners. It was originally established by G.A. Serlachius, and named Metsä-Serla. Metsä Board is part of Metsä Group, one of the largest forest industry groups in the world. On 29 September 2008, M-Real sold four of its paper mills to South African company, Sappi. Nowadays, Metsä Board focuses on folding boxboards, food service boards and white kraftliners. Metsä Board has altogether seven production units in Finland and one in Sweden. In autumn 2020, Metsä Board announced that it would open a competence center in Äänekoski focusing on cardboard and packaging. In the same factory area were housed, among others, Metsä Group's bioproduct factory, cardboard factory, birch veneer factory, wood-based textile fiber test factory and a test factory producing 3D fiber products, which started to operate in May 2022. Wikipedia