EXHIBIT 21 SUBSIDIARIES OF THE REGISTRANT The following is a list of Solutia's subsidiaries as of December 31, 2002, except for unnamed subsidiaries that, considered in the aggregate as a single subsidiary, would not constitute a significant subsidiary. Percentage of Voting Power Owned by Solutia ------------- CarboGen Laboratories (Aarau) AG............................ 100% CPFilms Inc. ............................................... 100% Erste Viking Resins Germany 1 GmbH.......................... 100% Monchem, Inc. .............................................. 100% Monchem International, Inc. ................................ 100% Solutia Austria GmbH........................................ 100% Solutia Deutschland Holding GmbH............................ 100% Solutia Europe S.A./N.V. ................................... 100% Solutia Germany GmbH & Co. KG............................... 100% Solutia Investments, LLC.................................... 100% Solutia Italy S.R.L. ....................................... 100% Solutia Netherlands Holdings B.V. .......................... 100% Solutia Services International SCA/Comm, VA................. 100% Solutia Systems, Inc. ...................................... 100% Solutia U.K. Holdings Limited............................... 100% Solutia U.K. Investments Limited............................ 100% Solutia U.K. Limited........................................ 100% Viking Resins Germany Holding GmbH & Co. KG................. 100% Erste Viking Resins Germany 1 GmbH, Solutia Austria GmbH, Solutia Germany GmbH & Co. KG, Viking Resins Germany Holding GmbH & Co. KG, and Solutia Italy S.R.L. were included in the sale of Solutia's resins, additives and adhesives businesses to UCB S.A. on January 31, 2003. 85