#FirstpostAfrica: Ghana, Africa’s top gold producer, is moving to overhaul its mining rules as gold prices surge. The government wants to replace a flat royalty with a sliding rate of five to twelve percent, capturing more revenue during price booms. Miners warn the plan could hurt investment and raise costs, especially for marginal mines. To ease concerns, the finance minister has offered to cut a separate mining levy by two points. The debate highlights Africa’s balancing act between resource