This result started from 90m down the hole at the Omora zone.

There were six new triple-digit intersections at the project's Gremi zone. This included a 219m intersection grading 0.84% copper, 214ppm moly and 0.12 grams per tonne gold which started from a depth of 87m.

Another standout hole clocked up a 141m intersection grading 0.9% copper, 154ppm moly and 0.26gpt gold from a 12m depth.

A separate hole yielded a 197m intersection at 0.57% copper, 74ppm moly and 0.23gpt gold just 3m from the surface. This included a 141m interval at 0.9% copper, 154ppm moly and 0.26gpt gold from 12m down the hole.

Yet another hole struck 222m intersection grading 0.5% copper, 84ppm moly and 0.1 gpt gold, which included a 81m interval at 0.81% copper, 127ppm moly and 0.25gpt gold from a depth of 3m.

There was also a 186m intersection at 0.53% copper, 299ppm moly and 0.17gpt gold from a depth of 3m in different hole. This included a 99m interval grading 0.74% copper, 266ppm moly and 0.15gpt gold from 36m down the hole.

Three diamond core rigs remain on site drilling targets.

"We continue to be excited by the results coming from our drilling program as it is confirming our belief of developing opportunities to mine higher grade zones early," Marengo chief operating officer Paul Korpi said.

"Even more importantly, as we include this new information into our resource model, our understanding of these higher grade zones is improving. As we complete the feasibility in October we will be utilising this data in our mine planning efforts."