Feral Cities' 86ish page section on Lagos also has information on the rest of Africa.
Corporate Enclaves (and Spy Games has an update for 2073) has information on Nairobi and the mass driver on Mt. Kilimanjaro.
Runner Havens has a small section on Cape Town.
Sixth World Alamanac has entries for Azania, Asamando, Egypt, Kenya, and the Kingdoms of Nigeria. And the first half of the book is a timeline and historical overview of the world.
War! has an entry on the Somalia area of the Ethiomalian Territories, and I followed up on some new developments in Mogadishu in Spy Games as NeoNET decided to step in after MCT screwed it over, but Horizon was hindering them for unknown reasons.
Spy Games also has some information on UCAS activities in Africa in 2073.