AIM-listed gold explorer Kefi Minerals has taken a step towards building its Tulu Kapi project in Ethiopia.The results from an extra drill hole show strong gold mineralisation at Tulu Kapi, with best results of 12m at 4.23 gross tonnage.The group has completed field work and classified 90% of the minerals as reportable resources and reserves.Managing Director Jeff Rayner said Kefi could now update resources, reserves and mine planning to re-activate its mining licence application by the end of 2014 and start construction in 2015.At 12:52 in London, Kefi's share price was unchanged at 1.6p.WS