Cambodia is mostly exporting their sand to Singapore as part of land reclamation projects. Environmentalists are super mad about it because the easiest sand to harvest is from sensitive Cambodian wetlands, which then gets shipped about 4 days south to Singapore.
The west's garbage?
Not sure if you were being sarcastic, but garbage is handled locally. Some garbage is sold to other countries, but they pay for it because they want it, it's not dumped on them.
Zero garbage is just sent elsewhere to be dealt with in some random way.
Don't you mean we pay them to take it ?
No, I don't mean that, because that does not happen. If other countries want recycling they pay to buy it.