A plastic support with a transponder having a data memory for the wireless transmission data from and to the plate-like plastic support is provided with attachment means for attachment to objects to be electronically marked. The transponder is arranged on or in a transponder support separate from the plastic support, which is able to be joined to the plastic support by catch or clamping means. Accordingly a transponder support provided with the transponder is able to be reused, after its intended first use, in a new plastic support. Accordingly overall costs may be substantially reduced.