<Page> EXHIBIT 21 SUBSIDIARIES OF SOLO CUP COMPANY JUNE 1, 2004 The following is a list of subsidiaries of Solo Cup Company (a Delaware corporation). <Table> <Caption> State or Country of Incorporation or Name Organization - ----------------------------------------------------------------------------------------------- Solo Cup Company Illinois S Credit Corporation Illinois Solo Texas LLC Texas P.R. Solo Cup, Inc. Illinois Solo Management Company Illinois Yugen Kaisha Solo Cup Asia Pacific Japan Sanyo Pax Operations Co., Ltd Japan Solo Cup Japan Co., Ltd Japan Solo Container de Panama, S.A. Panama SC Management de Mexico, S. de R. L. de C.V. Mexico Solo Cup de Mexico, S de R.L. de C.V. Mexico Solo Cup (Australia) Pty Ltd Australia Solo Cup UK Limited England and Wales Insulpak Holdings Limited England and Wales Solo Cup Europe Limited England and Wales SF Holdings Group, Inc. Delaware Sweetheart Cup Company Inc. Delaware Lily-Canada Holding Corporation Delaware Lily Cups Inc Canada Global Cup, S.A. de C.V. Mexico Servicios de Trinairi, S.A. de C.V. Mexico Emerald Lady, Inc. Delaware Cupcorp, Inc. Delaware Newcup, LLC Delaware </Table>