MTN has 5 million fintech users in Nigeria. It wants 30 million.

MTN, Africa’s largest telecoms group, has built one of the continent’s biggest mobile-money businesses. But with far more telecom customers than MoMo users, it has a huge opportunity to turn its network into a fintech growth engine. 

That opportunity is most pronounced in Nigeria, where the telecom giant has five million fintech customers but sees a path to as many as 30 million over…