1 Exhibit 21.1 The following is a list of subsidiaries of RPM, Inc. as of May 31, 1999. Jurisdiction of Name Incorporation - ---- ------------- Bondex International, Inc. Ohio Consolidated Coatings Corporation Ohio Consolidated Inter-Continental Corporation Ohio Consolidated Protective Coatings, Ltd. Canada Day-Glo Color Corp. Ohio Kop-Coat, Inc. Ohio Alox Corporation New York Alox International Sales Corporation New York Republic Powdered Metals, Inc. Ohio Tremco Incorporated (1) Ohio Weatherproofing Technologies, Inc. Delaware Paramount Technical Products, Inc. South Dakota Tremco A.B. Sweden Tremco GmbH Germany Tremco Ltee./Ltd. Canada Tremco Limited U.K. OY Tremco Ltd. Finland Tretol Group Ltd. U.K. Tretol Ltd. U.K. Tretobond Ltd. U.K. Tremco Asia Pte. Ltd. Singapore Tremco Asia Pacific Pty. Limited Australia Tremco Pty. Limited Australia PABCO Products Pty. Limited Australia Tremco (NZ) Limited New Zealand Tremco Japan Pty. Ltd. Australia Tremco Far East Limited Hong Kong Tremco Malaysia Sdn. Bhd. Malaysia Tremco Far East Ltd. Korea Tremco Far East Ltd. Singapore Bondo/Mar-Hyde Corporation Ohio The Euclid Chemical Company.(2) Ohio Westgate Advertising, Inc. Ohio Carboline Company Delaware Carboline International Corporation(3) Delaware Carboline Dubai Corporation Missouri Map II, Inc. Delaware RPM World Trade, Ltd. Virgin Islands RPM World Trade, Inc. Delaware Stonhard, Inc.(4) Delaware Parklin Management Group, Inc. Ohio 2 Stonhard Ltd. Canada Stonhard S.A. Luxembourg Stonhard S.A. de C.V. Mexico Mexico Stonhard de Mexico S.A. de C.V. Mexico Juarez Immobiliaria S.A. de C.V. Mexico Plasite Protective Coatings, Inc. Delaware Briner Paint Mfg. Co. Texas American Emulsions Co., Inc. Georgia Lubraspin Corporation Georgia Select Dye & Chemical, Inc. Georgia DesignCraft Fabric Corporation Illinois Chemical Specialties Manufacturing Corp. Maryland RPM of Mass, Inc. Massachusetts Haartz-Mason, Inc. Massachusetts Westfield Coatings Corporation Massachusetts William Zinsser & Co. Incorporated New Jersey Richard E. Thibaut, Inc. New York Mantrose-Haeuser Co., Inc. Massachusetts Mohawk Finishing Products, Inc. New York H. Behlen & Bro., Inc. New York Bondex International (Canada) Ltee./Ltd. Canada Chemical Coatings, Inc. North Carolina First Colonial Insurance Company, Inc. Vermont Fibergrate Composite Structures Incorporated Delaware Fibergrate Corporation(5) Texas Chemgrate Corporation Washington Chem-Grate Corporation Tennessee Chemgrate (Asia), Inc.(6) Washington Chemgrate (PRC), Inc.(6) Washington Dryvit Holdings, Inc. Rhode Island Dryvit Systems, Inc.(7) Rhode Island Dryvit Systems, Canada Ltd. Canada Tech 21 Panel Systems, Inc. Rhode Island Ultra-Tex Surfaces, Inc. California Metro Clean Systems, Inc. Delaware Rust-Oleum Corporation(8) Illinois Rust-Oleum Sales Company, Inc. Ohio ROC Sales, Inc. Illinois Rust-Oleum International Corporation Delaware Star Finishing Products, Inc. Illinois TCI, Inc. Georgia The Testor Corporation Ohio The Flecto Company, Inc.(9) California Flecto International Supply, Inc. Nevada Flecto Coatings Ltd. Canada RPM/Europe B.V. Netherlands Carboline Europe B.V. Netherlands Rust-Oleum Netherlands, B.V. Netherlands 3 Martin Mathys Nederland B.V. Netherlands Radiant Color N.V. Belgium Martin Mathys N.V. Belgium RPOW U.K. Limited U.K. Chemspec Europe Limited U.K. Rust-Oleum U.K. Limited U.K. Stonhard U.K. Limited U.K. Carboline U.K. Limited U.K. Mantrose U.K. Limited U.K. Agricoat Industries Limited U.K. Wm. Zinsser Limited U.K. Stonhard (Ireland) Limited Ireland RPM Holdings UK Limited U.K. Dore Holdings Limited U.K. Nullifire Limited U.K. Amtred Limited U.K. RPOW France S.A. France Rust-Oleum France S.A. France Stonhard S.A.S. France Corroline France S.A. France Bati-Traital S.A.R.L. France Tremco B.V. Netherlands RPM/Belgium N.V. Belgium Monile France S.A.R.L. France RPM/Lux Consult S.A. Luxembourg RPM Asia Pte. Ltd. Singapore RPM China Pte. Ltd. Singapore Magnagro Industries Pte. Ltd.(10) Singapore Espan Corporation Pte. Ltd. (11) Singapore Espan Building Industries Pte. Ltd. Singapore Alumanation (M) Sdn. Bhd. Malaysia (1) Tremco Incorporated owns 50% of the outstanding stock of Sime Tremco Sdn. Bhd., a Malaysian company. (2) The Euclid Chemical Company owns 100% of the outstanding shares of two Ohio corporations, Redwood Transport, Inc. and Euclid Chemical International Sales Corporation, and is a 51% joint venture partner in Euclid Admixture Canada, Inc., a Canadian corporation; a 51% joint venture partner in Euclid Admixture LLC, a Mississippi limited liability company; a 49% joint venture partner in Eucomex S.A., a Mexican company; and a 49% joint venture partner in Toxement S.A., a Columbian company. (3) Carboline International Corporation owns 80% of Chemrite Coatings (Pty.), Limited, a South African corporation; 49% of Carboline Korea Ltd.; 45% of Carboline Norge A/S; 49% of Carboline Middle East LLC; 33.33% of Japan Carboline Company and 40% of CDC Carboline (India) Private Ltd. 4 (4) Stonhard, Inc. owns 79% of Stonhard Deutschland GmbH, a German corporation, which, in turn, owns 100% of Alteco Technik GmbH, a German corporation. Parklin Management Group, Inc. owns the remaining 21% of Stonhard Deutschland GmbH. Stonhard, Inc. also owns 75% of Stonhard South America Ltda., a Brazilian limited liability company and is a 50% joint venture partner in Stonhard Distribuidora de Suelos Industriales S.A., a Spanish corporation. (5) Fibergrate Corporation owns 50% of Fibergrate B.V., a Netherlands corporation. (6) Chemgrate (Asia), Inc. and Chemgrate (PRC), Inc. each own 50% of Chemgrate Shanghai FRP Co. Ltd., a Chinese corporation. (7) Dryvit Systems, Inc. is a 51% joint venture partner in Beijing Dryvit Chemical Building Materials Co., Ltd., a Chinese company and a 55.41% joint venture partner in Dryvit Systems USA (Europe) sp z.oo., a Polish company. (8) Rust-Oleum owns 70% of the outstanding shares of Multicor S.A. Agentina I. y C., an Argentine corporation. (9) The Flecto Company, Inc. owns 79% of the outstanding shares of Harry A. Crossland Investments, Ltd., a Nevada corporation, which, in turn, owns 100% of Crossland Distributors Ltd., a Canadian corporation. The remaining 21% of the outstanding shares of Harry A. Crossland Investments, Ltd. are owned by Flecto Coatings Ltd. (10) Magnagro Industries Pte. Ltd. owns 100% of the outstanding shares of Dryvit Pacific Coating Systems (SIP) Co. Ltd., a Chinese corporation, and 90% of the outstanding shares of Shanghai Ban Lee Heng Construction Co., Ltd., a Chinese corporation. (11) Espan Corporation Pte. Ltd. owns 40% of the outstanding shares of Pacific Goldhill Pte. Ltd., a Singapore corporation.