LONDON, UK; Kavango Resources plc (LON:KAV) has entered an exclusive, three month option to acquire 85.23% of Kalahari Key Mineral Exploration Proprietary Limited (KKME) in a proposed all share-transaction. Kavango can exercise the option at its sole discretion. Kalahari Key Mineral Exploration Proprietary Limited (KKME) is a privately owned company, which currently owns 100% of…