Exhibit 21.1 SUBSIDIARIES OF REGISTRANT - --------------------------------------------------------------------------- The following is a list of the Corporation's subsidiaries as of June 30, 2004. The Corporation owns, directly or indirectly, 100% of the voting securities of each subsidiary, unless noted otherwise. STATE OR JURISDICTION NAME OF ORGANIZATION - ---- --------------------- <s> <c> Parlex Dynaflex Corporation California Parlex International Corporation United States Virgin Islands Poly-Flex Circuits, Inc. Rhode Island Parlex (Shanghai) Circuit Co., LTD.* Shanghai Parlex Asia Pacific LTD. Hong Kong Poly-Flex Circuits Limited United Kingdom Parlex (Europe) Limited United Kingdom Parlex (Shanghai) Interconnect Shanghai Products, Co., Ltd. Parlex Corporation Limited United Kingdom Parlex (China) Investment Limited British Virgin Islands <FN> - -------------------- * 90.1% owned by Parlex Corporation </FN>