Mining contractor Byrnecut has boosted its work book, finalising a $350 million contract at the Kibali gold project in Africa to add to its recent win at St Barbara’s Gwalia Deeps mine, where its new equipment is tipped to achieve a 25 per cent efficiency gain.

Managing director Steve Coughlan said the Kibali contract positioned Perth-based Byrnecut as the largest underground mechanised mining contractor in Africa.