The pulp and paper industry uses wood as a raw material to produce products like pulp, paper, board and other cellulose products. It is one of the most polluting industrial sectors. The top paper producing countries are China, US, Japan, Germany and Canada. India's paper production has grown significantly over the past decades but still only accounts for about 2.6% of global production. Major Indian paper companies include ITC PSPD, Ballarpur Industries Limited and JK Paper Limited.