Mwana Africa stock is now trading as "MWA" on the London AIM exchange. Its focus is in Zimbabwe and Congo, but it inherits several Ghana gold properties from African Gold PLC. I don't know how serious Mwana Africa is about the latter. It may be that Mwana bought African Gold mainly: 1. as a "shell company" to get listed on the London AIM, and 2. to get the operating Zimbabwe gold mine.
[ Note: This has nothing to do with Toronto-Venture-Exchange-listed African Gold Group (AGG.V) , which also has gold exploration property in Ghana. ]