Exhibit 21.1 SUBSIDIARIES OF GRAHAM PACKAGING HOLDINGS COMPANY Name: Jurisdiction and Type of Formation: - ----- ----------------------------------- Graham Packaging Company, L.P. Delaware limited partnership GPC Capital Corp. I Delaware corporation GPC Capital Corp. II Delaware corporation GPC Opco GP LLC Delaware limited liability company GPC Sub GP LLC Delaware limited liability company Graham Packaging Canada Limited Ontario corporation Graham Packaging France Partners Pennsylvania general partnership Graham Packaging France, S.A.S. French corporation Financiere Graham Packaging France SNC French general partnership Graham Packaging Italy, S.r.L. Italian limited liability company LIDO Plast-Graham SRL Argentine limited liability company Societa Imballagi Plastici, S.r.L. Italian limited liability company Graham Packaging Poland, L.P. Pennsylvania limited partnership Masko Graham Spolka Z.O.O. Polish limited liability company Graham Recycling Company, L.P. Pennsylvania limited partnership Graham Packaging Latin America, LLC Delaware limited liability company Graham Brasil Participacoes Ltda. Brazilian limited liability company Graham Packaging do Brasil Industria e Comercio S.A. Brazilian corporation Graham Packaging U.K. Ltd. England & Wales corporation Graham Packaging Deutschland GmbH German limited liability company Graham Plastpak Plastik Ambalaj A.S. Turkish corporation Graham Packaging Europe SNC French general partnership Graham Emballages Plastiques S.A. French corporation Financiere Graham Emballages Plastiques SNC French general partnership Resin Rio Comercio Ltda. Brazilian limited liability company Graham Packaging Argentina S.A. Argentine corporation Graham Packaging Company de Venezuela, C.A. Venezuelan corporation Lido Plast San Luis S.A. Argentine corporation Graham Innopack de Mexico S. de R.L. de C.V. Mexican limited liability company Industrias Graham Innopack S. de R.L. de C.V. Mexican limited liability company Servicios Graham Innopack S. de R.L. de C.V. Mexican limited liability company Graham Packaging Belgium S.A. Belgian corporation Graham Packaging Iberica S.L. Spanish limited liability company Graham Packaging Villecomtal SARL French limited liability company Graham Packaging Noeux SARL French limited liability company Graham Packaging European Services, Ltd. England & Wales corporation Graham Packaging West Jordan, LLC Utah limited liability company Industrias Graham Innopack de Irapuato S. de R.L. de C.V. Mexican limited liability company Servicios Graham Innopack de Irapuato S. de R.L. de C.V. Mexican limited liability company Servicios Graham Innopack de Mexicali S. de R.L. de C.V. Mexican limited liability company