<translate>  N oriri afọ 125 nke nchọcha na mmetụta ya, Natural Resources Institute NRI, mahadum nke Greenwich, ekwela na mmetụta dị mma nke ngwaọrụ teknọlọjị e mepụtara na Naijiria maka value chain development nke akụkụ mgbọrọgwụ na mba n Afrịka. 