Castillo Copper Ltd (ASX:CCZ) has appointed two key service providers to facilitate the acceleration of the development of the new copper discovery at Big One Deposit in Queensland, which is open in all directions.

The company appointed ROM Resources to utilise legacy and current data to progress modelling up an inaugural JORC compliant inferred resource.

Castillo mandated GeoDiscovery Group to undertake an extensive geophysical survey with two core goals:

  • Potentially extend known mineralisation through identifying massive sulphide bedrock conductors along the 1,200 metres strike extent; and
  • Deliver fresh geophysical insights into several known yet under-explored nearby anomalies, particularly previously mapped gossanous outcrops located north-east of the recent drilling campaign.

“Big One Deposit could be fully developed”

Castillo managing director Simon Paull said: “Based on the evidence to date, the Board is increasingly optimistic Big One Deposit can be fully developed.

“As a reflection of our optimism, we are now moving aggressively to extend known mineralisation, identify new targets and prove up an inaugural resource.”

Next steps

Once the survey results are known, the geology team should be able to further refine and optimise the drilling campaign to increase the probability of intersecting mineralisation.

Castillo’s geology team is currently working on a holistic update of Big One Deposit results, which will be released imminently.

Overall, the company has been delighted with the results till date and is optimistic Big One Deposit has the potential to scale.