P Commodities > P.14 Paper and paper products > Paper > Waste paper

W Economic sectors > W.10 Trade > W.10.04 Trade in commodities and used materials > Waste paper

W Economic sectors > W.32 Waste management, eco-industries and recycling > W.32.02 Recycling > Waste paper

B Business economics > B.01 Management and business organization > B.01.06 Environmental management > Waste > Waste paper