EXHIBIT 21 Subsidiaries of the Registrant ------------------------------ Name of Subsidiary Jurisdiction of Organization ------------------ ---------------------------- Silgan Containers Corporation Delaware Silgan Containers Manufacturing Corporation Delaware Silgan LLC Delaware Silgan Corporation Delaware Silgan Can Company Delaware Silgan Containers Lodi Manufacturing Corporation California Silgan Closures Holding Company Delaware Silgan Closures Corporation Delaware Silgan Closures LLC Delaware Silgan Equipment Company Delaware Silgan Closures International Holding Company Delaware Silgan Closures Mexico, S.A. de C.V. Mexico Silgan Plastics Corporation Delaware RXI Plastics, Inc. Delaware Silgan Tubes Corporation Delaware Silgan Tubes Holding Company Delaware 827599 Ontario Inc. Ontario, Canada Silgan Plastics Canada Inc. Ontario, Canada 828745 Ontario Inc. Ontario, Canada Thatcher Mexico, S.A. de R.L. de C.V. Mexico Thatcher Investments, S.A. de R.L. de C.V. Mexico