By Jason Mitchell Ghana, Africa’s biggest gold producer and one of the continent’s most mineral-rich countries, aims to become a lot more involved in the ‘beneficiation’ or value-added processing of its ores. The country — with a population of 33.7m and a $75.6bn economy — is blessed with myriad natural resources, including gold, silver, diamonds, manganese and bauxite. Most are mined deep in the ground under the land or sea. It is also endowed with deposits of iron ore, limestone, columbite-tantalite, feldspar, quartz and salt. There are also minor deposits of ilmenite, magnetite and rutile. …