We used to ship a lot of plastic waste back to China in what would be otherwise empty shipping containers. The movie "Plastic China" shows what the other end of that looks like:

https://www.amazon.com/Plastic-China-Jiu-liang-Wang/dp/B06XT...

TL;DW: The producers find the cutest little girl in all of China, living in abject poverty amid toxic squalor.