Firefly Metals Ltd (ASX:FFM) is heading into a pending resource update at its Green Bay copper-gold project in Newfoundland, Canada, with a suite of strong results, with recent drilling extending mineralisation by 650 metres, and revealing thick zones of copper equivalent (CuEq) grading beyond 10%. The company plans to release a resource update later in October, while in the background, its drilling campaign has shown potential for resource growth – with copper mineralisation continuing beyond the furthest hole of 102 metres at 1.7% copper (Cu). Drilling has concentrated on extensions to the u…