Malaysia, which has become the dumping ground for the world's plastic waste, will send back nonrecyclable plastic scrap to the developed countries that sent it there, its environment minister said on Tuesday.

Malaysia last year became the leading alternative destination for plastic scrap after China banned imports of such waste, disrupting the flow of more than 7 million tonnes of plastic scrap a year.

Dozens of recycling factories cropped up in Malaysia, many without an operating license, and residents complained of environmental damage.