The term "waste electronic components" here refers to various electronic devices--such as resistors, capacitors, diodes, transistors, integrated circuits, and connectors--that have lost their original functionality due to aging, damage, performance degradation, or technological obsolescence during the production, use, or maintenance of electronic products, or that, although not entirely devoid of utility, have been discarded. This type of waste electronic component typically contains metals, plastics, ceramics, and small amounts of hazardous substances. After processing steps such as collection, disassembly, sorting, and refining, it can serve as a recycled source of metal resources such as copper, aluminum, tin, gold, and silver, as well as certain semiconductor and plastic materials, entering reuse sectors including metallurgy, electronic manufacturing, and material recovery.