International trade of scrap metal is strictly regulated. Ensure the product complies with ISRI (Institute of Scrap Recycling Industries) specifications, which define standard grades for non-ferrous scrap. For cross-border trade, the supplier must provide a Pre-shipment Inspection Certificate (PSIC) and adhere to ISO 9001 for quality management. Additionally, verify that the scrap is free from radioactive materials, medical waste, and excessive moisture or oil, which can pose safety risks during melting.