Gold Mining Explorationpanies In Ghana. Gold Fields and Asanko Gold to Partner in a Joint . ACCRA, Ghana, March 29, 2018 (GLOBE NEWSWIRE) South Africa's Gold Fields and Canada's Asanko Gold are pleased to announce a 50:50 joint venture partnership with regards to Ghana's newest gold mine, the Asanko Gold Mine (AGM), which is located in the Ashanti Region of Ghana.