1 EXHIBIT 21.1 SUBSIDIARIES OF SCHWEITZER-MAUDUIT INTERNATIONAL, INC. The subsidiaries of the Company at December 31, 1999 were as follows: JURISDICTION OF INCORPORATION OR NAME ORGANIZATION - ---- -------------------------- Schweitzer-Mauduit Canada, Inc.................................... Manitoba Province (Canada) Schweitzer-Mauduit Spain, S.L..................................... Spain - LTR Industries S.A................................... France - Schweitzer-Mauduit do Brasil, S.A.................... Brazil Schweitzer-Mauduit France S.A.R.L................................. France - Papeteries de Mauduit S.A............................ France -- PDM Industries S.N.C............................ France -- Papeteries de Malaucene S.A..................... France -- Malaucene Industries S.N.C.................. France - Groupe SAPAM S.A..................................... France -- Papeteries de Saint-Girons S.A.................. France