By Thulani Mpofu A Kenyan firm, Mwale Medical and Technology City (MMTC), has signed a deal with Zambia under which it will invest $2.4bn in developing smart cities, mining, infrastructure and agriculture projects in the southern African nation. Capital FM said on June 4 that the into Zambia entry of MMTC, founded by US-based Kenyan businessman Julius Mwale, advances the firm’s long-term ambition of developing 18 smart cities in 12 countries in Africa by 2050. The cities will be powered by batteries like MMTC in Kenya, according to the agreement MMTC signed with Zambia’s Industrial Development…