What are some historical examples of exploitation in africa?

The exploitation of Africa began with the wars inspired to procure enslaved people and the export of the most fit and strong members of Africa's population. It continued with colonisation in the nineteenth century. Colonies were areas of Africa and other regions (such as India) which became placed under direct governmental control by European powers, effectively extensions of those European countries. The Europeans took mineral and agricultural products from these colonies at the cheapest possible price. The colonies also provided markets for manufactured European goods. Manufacturing by Africans in African colonies (and in the Caribbean) was forbidden and African enterprise was diminished or eliminated in every possible way. Hope I helped :)