1 AMERICAN VANGUARD CORPORATION AND SUBSIDIARIES EXHIBIT 21 LISTING OF SUBSIDIARIES Subsidiaries of the Company and the jurisdiction in which each company was incorporated are listed below. Unless otherwise indicated parenthetically, 100% of the voting securities of each subsidiary are owned by the Company. All companies indicated with an asterisk (*) are subsidiaries of AMVAC. All of the following subsidiaries are included in the Company's consolidated financial statements: AMVAC Chemical Corporation California GemChem, Inc. California 2110 Davie Corporation California (formerly ABSCO Distributing) AMVAC Chemical UK Ltd.* Surrey, England Agrosevicios Amvac, SA de CV Mexico Quimica Amvac de Mexico SA de CV Mexico Environmental Mediation, Inc. (51%) California Calhart Corporation California Manufacturers Mirror & Glass Co., Inc. California Todagco (80%)* California American Vanguard Corporation of Imperial Valley (90%)* California AMVAC Ag-Chem* California AMVAC Chemical Corporation-Nevada* Nevada