Aug 04, 2021· Companies as Newmont, Gold Fields, Kinross Gold, and AngloGold are one of the largest employers of labour in the country. This article will discuss the top 10 mining companies in Ghana. 1. Gold Fields Tarkwa Mine. This mine is considered to be the largest mine in Ghana. In the year 2017, they recorded an annual output of 566,400 ounces of gold.