Waste telecommunication equipment generated by the domestic mobile telecommunication industry is classified and distributed, not as waste electrical and electronic equipment, but as scrap iron, which can cause international problems such as violations of the agreements of the Basel Convention on the control of transboundary movement of hazardous waste and its disposal. The purpose of the study is to establish the infrastructure for the correct implementation of an export-and-import declaration by determining both the identification of hazardous materials and the composition ratio for recycling waste mobile communication equipment. In total, 16 pieces of waste equipment from three companies was collected for leaching and contest analysis: repeaters, base stations, antennae, cables, batteries, and wires. In the resultant composition ratio, 99% of a coupler and more than 80% of a repeater sample were composed of scrap metal, whereas 30 ~ 50% of a base station sample was made of printed circuit board (PCB). The lead leaching concentrations in two PCBs exceeded the standard value (13.9 mg/L and 5.5 mg/L), which means that it is necessary to control them in the transboundary movement of waste. The type and concentration of hazardous chemicals are different for each component and product, suggesting that waste mobile communication equipment has to be separated and sent out in parts.