Nigeria’s first gold refinery, located in the southwestern state of Ogun, is scheduled to be completed by the end of June, according to Kian Smith Trade & Co, the local company developing it. The refinery will initially be able to produce 3 metric tons of gold each month, and 1 t of silver, Kian Smith said in a statement. The company said it will supply the nation’s central bank, as well as the jewelry and electronic industries, and source its gold from states such as Zamfara, Kebbi and Kwara.