Sunstone’s imminent maiden resource for its Bramaderos copper-gold project in southern Ecuador could be pretty meaty if the further wide drill intersections are anything to go by.

Drilling intersected broad zones of gold-copper mineralisation including a 49.45m intersection grading 0.6 grams per tonne (g/t) gold equivalent (0.37g/t gold and 0.13% copper) from a down-hole depth of 392m at the Brama system, 32m at 1.2g/t AuEq from 386m and 115m at 0.66g/t AuEq from 12m at the Alba system.

Sunstone Metals (ASX:STM) plans to release an Exploration Target in December to provide guidance on opportunities to continue growing the scale of the Brama-Alba system, which remains open in several areas beyond the planned initial resource boundary.

Adding further interest, while resource estimation drilling has been completed, exploration drilling has started at the Melonal, Sandia and Limon porphyry targets with logging of the Sandia and Melonal holes indicating that they are altered and mineralised consistent with Brama porphyry type systems.

“These results are more evidence of the substantial widths of mineralisation which will form part of the initial MRE,” managing director Malcolm Norris said.

“The MRE, which we expect to deliver in December, will be the first step to building a significant inventory of gold and copper at Bramaderos.

“An exploration target will be estimated alongside the MRE to guide further drilling to increase the resource base at Bramaderos in 2023.

“In addition, the drilling of new targets to deliver further discoveries with the potential to significantly increase the resource base is now underway with encouraging initial results.”


Bramaderos is located immediately adjacent to the Pan American highway and is close to available hydroelectric power.

It is also supported by nearby commercial airports and significant cities such as Loja.

Earlier drilling had also returned thick gold-copper intersections including a 202m interval grading 0.88g/t gold equivalent.




This article was developed in collaboration with Sunstone Metals, a Stockhead advertiser at the time of publishing.


This article does not constitute financial product advice. You should consider obtaining independent advice before making any financial decisions.