The Simon Lill-chaired explorer announced on Wednesday it had intersected 438 metres of semi massive sulphides in a diamond hole at the Godley prospect.
The hit follows a similar 275m zone intersected in its first hole at Godley last month.
Assays are pending for both holes.
Mr Lill described it as a highly promising start to the company’s drilling campaign at Mons.
“These results provide strong evidence that Godley hosts a large mineralised system with potential for high-grade zones,” he said.
“We will now prioritise downhole EM to help us with drill targeting at Godley while at the same time drilling is underway at the Dease target 7km to the north, where we recently discovered a nickel-bearing gossan at surface.”
Mons represents a 1761sqkm patch of ground previously held by WMC in the Yilgarn district 140km north of Southern Cross.
Nimy listed in November after a $6 million initial public offering.