EXHIBIT NO. 21 (as of January 1996) Jurisdiction of Domestic Subsidiaries Incorporation - --------------------- --------------- ArmStar (50%-owned unincorporated affiliate) Armstrong Cork Finance Corporation Delaware Armstrong Enterprises, Inc. Vermont Armstrong Industrial Specialties, Inc. Pennsylvania Armstrong Industrial Specialties International, Inc. Nevada Armstrong Realty Group, Inc. Pennsylvania Armstrong Ventures, Inc. Delaware Armstrong World Industries Asia, Inc. Nevada Armstrong World Industries (Delaware) Inc. Delaware Armstrong World Industries Latin America, Inc. Nevada A W I (NEVADA), INC. Nevada Charleswater Products, Inc. Delaware Chemline Industries, Inc. Delaware IWF, Inc. Nevada I.W. Insurance Company Vermont The W. W. Henry Company California The Worthington Armstrong Venture (50%-owned unincorporated affiliate) Foreign Subsidiaries - -------------------- Alphacoustic (UK) Ltd. England Armstrong-ABC Co., Ltd. Japan Armstrong Architectural Products S.L. Spain Armstrong Building Products England Armstrong Building Products B.V. Netherlands Armstrong Building Products G.m.b.H. Germany Armstrong Cork (Ireland) Limited Ireland Armstrong Europa G.m.b.H. Germany Armstrong Europe Services England Armstrong Floor Products Europe G.m.b.H. Germany Armstrong Floor Products Europe Ltd. England Armstrong Floor Products Europe Sarl. France Armstrong FSC, Ltd. Bermuda Armstrong Insulation (Panyu) Co. Ltd. People's Republic of China Armstrong Insulation Products England Armstrong Insulation Products A.G. Switzerland Armstrong Insulation Products Benelux, S.A. Belgium Armstrong Insulation Products S.A. Spain Armstrong Insulation Products Sp. zo.o. Poland Armstrong Insulation Rus. Russia Armstrong (Japan) K.K. Japan Armstrong Metal Ceilings Ltd. England Armstrong-Nylex Pty. Ltd. Australia Armstrong (Singapore) Pte. Ltd. Singapore Armstrong World Industries - A.C.I. B.V. Netherlands Armstrong World Industries Canada Ltd. Canada Armstrong World Industries (China) Ltd. People's Republic of China Armstrong World Industries de Mexico, S.A. de C.V. Mexico Armstrong World Industries - France, S.A. France Armstrong World Industries, G.m.b.H. Germany Armstrong World Industries (H.K.) Limited Hong Kong Armstrong World Industries Italia S.r.l. Italy Armstrong World Industries Korea, Ltd. Korea Armstrong World Industries Ltd. England Armstrong World Industries - Pontarlier S.A. France Armstrong World Industries Pty. Ltd. Australia Armstrong World Industries (Thailand) Ltd. Thailand Inarco Limited (50%-owned affiliate) India ISA Co., Ltd. (25%-owned affiliate) Japan ISO Holding, A.G. Switzerland Liberty Commercial Services Ltd. Bermuda Recubrimientos Interceramic S.A. de C.V. Mexico (49%-owned affiliate) Worthington Armstrong Metal Products Co. (Shanghai) Ltd. People's Republic of China Worthington Armstrong Venture Europe S.A. (owned by WAVE) France