Subsidiaries of the Co-Registrants SUBSIDIARIES OF UNITED STATIONERS INC. United Stationers Supply Co. (Illinois) SUBSIDIARIES OF UNITED STATIONERS SUPPLY CO. United Stationers Hong Kong Limited (Hong Kong) United Worldwide Limited (Hong Kong) Lagasse Bros., Inc. (Louisiana) Azerty Incorporated (Delaware) Positive ID Wholesale Inc. (Delaware) AP Support Services Incorporated (Delaware) Azerty de Mexico, S.A. de C.V. (Mexico) CJS/GT Corp. (Georgia) SAH, Inc. (Illinois) USS Receivables Company, Ltd. (Grand Cayman) LAGASSE BROS., INC. None AZERTY INCORPORATED None POSITIVE ID WHOLESALE INC. None AP SUPPORT SERVICES INCORPORATED None