There are electronic waste, industrial waste and jewelry. 1. E-waste: Mobile phones, computers, printers and other electronic devices all contain gold-plated waste. When these devices are scrapped or repaired, the gold-plated part can be recycled.

2. Industrial waste: Some industrial production processes will produce gold-plated waste, such as circuit board manufacturing and electronic component production. Waste products can be purchased from the waste market through cooperation with related enterprises.

3. Jewelry and accessories: Some old and damaged gold-plated jewelry and accessories can be recycled.