Proactive weekly mining round-up: Greatland Gold, Kavango Resources, Pembridge Resources... Some of the weeks mining and exploration stories in a snapshot Greatland Gold PLC (LON:GGP), a precious and base metals exploration and development company, announced the start of the underground decline access at its Havieron gold-copper joint venture project in Western Australia. "This is a momentous step in the development of Havieron as a world-class gold-copper mine,” said Greatland chief executive Shaun Day. “I am delighted by progress on site and this fast-tracked milestone is indicative of the potential scale of the deposit and the opportunity seen by our partners Newcrest.