Kenya’s biggest bank is waiting eagerly for Ethiopia to open its closely guarded financial services sector as the new Prime Minister Abiy Ahmed warms up to foreign investment in ongoing market reforms. KCB Group Ltd. set up a representative office in Addis Ababa, the Ethiopian capital, in 2015 to position itself for when Africa’s fastest-growing economy finally relaxes its policy toward external investment in key industries, Chief Executive Officer Joshua Oigara said. It might not have to...