The option over the three licences comprising the Katanga copper-cobalt project is costing US$25,000.
If subsequently exercised, Okapi can earning a 70% stake in each of the three licences by spending $3 million at each.
Okapi is now undertaking due diligence, with the licences looking to be well-located but early stage exploration plays.
Okapi listed in September last year after an IPO seeking A$4.5 million from the issuing of new shares priced at 20c and offering exploration leverage to a gold projects in the Kimberley region of Western Australia and at Mambasa in the DRC.
Upon listed the stock started ascending, reaching a high of 87.5c last week.