85% coca, but how ethical is it ?

I wonder where the chocolate I have been using for my design comes from.  The packaging says Ivory coast and Ecuador, but this doesn't tell me much.  

I watched a documentary about child smuggling and slavery in the Ivory Coast coca industry and found this shocking and upsetting.  ( https://www.youtube.com/watch?v=7Vfbv6hNeng )

I discovered that the ivory coast produces 30% of the worlds coca and coca is responsible for almost 2/3 rds of the countries trade revenue. Coca is clearly an important comodity.

The fact that it is made into something so sweet is ironic, I would like to use this tension in my project.