Ghana's researchers recycle plastic to refine metals

Ghana is the second largest producer of gold in Africa and a 
major producer of manganese and the main aluminium ore, 
bauxite. Yet, despite mining accounting for more than a third 
of the country’s export earnings, none of these minerals are 
currently processed domestically, meaning the country is losing 
out on the huge profits to be gained by adding value to raw 
materials. A rich seam of other minerals, including iron ore, 
are as yet untapped.

Source: https://www.youtube.com/watch?v=bELbUV3qR7c