Countries like China, India, and others will buy up old electronics from around the world, have them shipped in, then break them apart to recycle them for parts. Circuit boards, transistors, processors, vacuum tubes, batteries...they break them down to sell for parts. The problem is that often times dangerous chemicals are used to make electronics and breaking them down can expose people to these chemicals, and it's often times children who are used to break them down and remove the parts because children have smaller fingers that can fit in the tight spaces of electronics better than adults.