Iran. 2015. Trucks coming from an open pit mine in the central Zanjan province on their way to a nearby crusher facility. Iran's mining sector is highly promising, international consultants say. The country holds large quantities of Iron ore, but also precious metals, and the world's largest unexploited reserves of Zinc. Mine owners are offering joint ventures, but also complete buy-outs, in many cases on the cheap, since exploitation needs capital that Iranian companies don't have.