Nederman Holding AB is a Sweden-based environmental technology company engaged in industrial air filtration. It operates within four business areas: Metal Fabrication; Fibre-based industries, waste management and general industry; Process industry and energy, and Service and automotive market. The Company�s product portfolio comprises bag filters, cartridge filters, compact dust controllers, control equipment and exhaust nozzles, among others. Its sales and marketing are done through subsidiaries in 29 countries, as well as by agents and distributors in 30 countries. The Company has production and assembly units in Sweden, Denmark, Germany, Poland, Canada, the United States, Thailand and China. As of December 31, 2011, the Company had a number of subsidiaries, including AB Ph. Nederman & Co, Nederman Magyarorszag Kft, Nederman Norclean A/S, Nederman N.V. and Nederman GmbH, among others. As of December 31, 2011, its largest shareholder was Investment AB Latour, which held 29.98% shares.