China will restrict imports of high-grade category 6 copper scrap, aluminium and steel scrap from July in an extension of a ban that started this year on category 7 scrap.
Category 7 has less metal content.
Reuters has reported that traders and other scrap metal importers will have to demonstrate the capacity to manufacture scrap into refined metal or semi-finished products to receive licences and quotas from the Ministry of Ecology and Environment (MEE).
MEE spokesman Liu Youbin told Reuters the ministry had carried out inspections on scrap metals importers and processing companies and would not accept licence applications from those that had violated rules.
China began restricting imports last year, while customs authorities have launched a series of crackdowns on waste smuggling.