The drilling, carried out by Australian operator Newcrest Mining Limited (ASX:NCM), has continued to expand the extent of mineralisation at the project, Greatland said, with the best results including 136 metres at 2.9 grams per tonne of gold and 0.6% copper.
The company added that another 20,000 to 30,000 metres of drilling is planned over the next two quarters to support the delivery of a maiden resource by the end of 2020.
"We are delighted that Newcrest's drilling campaign has continued to return outstanding results which further expand the extent of mineralisation at Havieron”, said Greatland chief executive Gervaise Heddle.
“The true scale of Havieron is beginning to emerge, with continuity of mineralisation observed over 450 metres of strike, and mineralisation still open to the north-west and at depth. These latest drill results and the initial observed dimensions of the deposit provide further evidence that Havieron represents a significant gold-copper discovery”, he added.
The news sent Greatland’s shares 4.6% higher to 3p in early trading on Thursday.