The NewsSouth African investment manager Sango Capital acquired equity assets valued at $120 million from a non-African investor that held interests in multiple African investment funds but is now exiting the continent as part of a rebalance of its global portfolio, Sango’s co-founder and partner Richard Okello told Semafor. It is the first in what he said will be a number of deals this year as Africa’s secondaries market gradually takes off.The…