EXHIBIT 21 Subsidiaries of the Registrant The following are subsidiaries of Crompton & Knowles Corporation: Name Place of Organization CK Holding Corporation Delaware Crompton & Knowles Canada Ltd. Canada Crompton & Knowles Colors Incorporated Delaware Crompton & Knowles Europe S.P.R.L. Belgium Crompton & Knowles (France) S.A. France Crompton & Knowles (Hong Kong) Ltd. Hong Kong Crompton & Knowles (Korea) Ltd. Korea Crompton & Knowles Services S.P.R.L. Belgium Crompton & Knowles (United Kingdom) Ltd. United Kingdom Davis-Standard Corporation Delaware Davis-Standard (France) SARL France ER-WE-PA Davis-Standard GmbH Germany Gustafson, Inc. Minnesota Gustafson International Company Texas Hannaford Seedmaster Services (Australia) Pty. Ltd. Australia Industrias Gustafson S.A. de C.V. Mexico Ingredient Technology Corporation Delaware Inmobiliaria Huilquimex, S.A. de C.V. Mexico Interbel Trading, Inc. Florida Lokar Enterprises, Inc. Delaware Naugatuck Treatment Company Connecticut Novaquim Holding S.A. de C.V. Mexico Novaquim S.A. de C.V. Mexico Rubicon Inc. Louisiana TOA Uni Chemicals Ltd. Thailand TOA Uni Chemical Manufacturing Ltd. Thailand Trace Chemicals Inc. Nevada Unicorb Limited England Unikor Chemical Inc. Korea Uniroyal Chemical Asia, Ltd. Delaware Uniroyal Chemical Asia Pte. Ltd. Singapore Uniroyal Chemical B.V. The Netherlands Uniroyal Chemical Brazil Holding, Inc. Delaware Uniroyal Chemical Co./Cie. Canada Uniroyal Chemical Company, Inc. New Jersey Uniroyal Chemical Company Limited Bahamas/Delaware Uniroyal Chemical Corporation Delaware Uniroyal Chemical European Holdings B.V. The Netherlands (Continued) The following are subsidiaries of Crompton & Knowles Corporation: Uniroyal Chemical Export Limited Delaware Uniroyal Chemical Holdings B.V. The Netherlands Uniroyal Chemical International Company Texas Uniroyal Chemical International Sales Corp. Barbados Uniroyal Chemical Investments Ltd. Canada Uniroyal Chemical Leasing Company, Inc. Delaware Uniroyal Chemical Limited Bahamas/Delaware Uniroyal Chemical Limited Scotland Uniroyal Chemical Netherlands B.V. The Netherlands Uniroyal Chemical Overseas B.V. The Netherlands Uniroyal Chemical Partipacoes Ltda. Brazil Uniroyal Chemical (Proprietary) Limited South Africa Uniroyal Chemical Pty. Ltd. Australia Uniroyal Chemical S.A. Spain Uniroyal Chemical S.A.R.L. Switzerland Uniroyal Chemical Taiwan Ltd. Taiwan Uniroyal Chemical Technology B.V. The Netherlands Uniroyal Chimica Srl Italy Uniroyal Quimica S.A. Brazil Uniroyal Quimica Sociedad Anonima Comerciale Industrial Argentina 9056-0921 Quebec Inc. Canada