Company Overview

Sunstone Metals (ASX:STM) is an ASX-listed mineral exploration company with two world-class gold and copper assets in Ecuador.

Sunstone’s two porphyry projects are the:

1. Bramaderos Gold-Copper Project

The Bramaderos Project, located in southern Ecuador, has both at-surface and deeper porphyry gold-copper systems and contains an initial Mineral Resource estimate of 156Mt at 0.53g/t AuEq for 2.7Moz AuEq.

Additionally, the Bramaderos Project has a porphyry Exploration Target of between 3.3Moz and 8.6Moz AuEq within 255Mt to 360Mt at a grade between 0.40 and 0.74g/t AuEq, and the Limon epithermal gold-silver Exploration Target of 0.9 - 1.7Moz AuEq within 30Mt - 44Mt at a grade between 0.9 - 1.2g/t AuEq.

2. El Palmar Gold-Copper Project

The El Palmar Project is located in northern Ecuador, 60km north-west of Ecuador’s capital Quito. The property sits on the regionally significant Toachi Fault Zone that hosts a number of world-class copper porphyry systems. The Project has both at-surface and deeper porphyry gold-copper systems and an initial Mineral Resource estimate of 64Mt at 0.60g/t AuEq for 1.2Moz AuEq.

Additionally, the El Palmar Project has a porphyry Exploration Target of between 15Moz and 45Moz AuEq within 1.0 to 1.2Bt at a grade between 0.3 - 0.7g/t gold and 0.1 – 0.3% copper.

Track record

The team at Sunstone has been involved in significant discoveries of porphyry and epithermal copper-gold mineralisation at Tujuh Bukit in Indonesia and Cascabel in Ecuador, and the successful development of the King of the Hills Gold Mine in Western Australia and Koniambo Nickel Mine and Smelter in New Caledonia.

The Company continues to attract specialist resources executives and is well-placed to repeat that success at Bramaderos and El Palmar.

Excellent infrastructure

All projects are supported by established infrastructure in close proximity to power, road and/or rail infrastructure and ports.

Community support

The Board and Management Team take their responsibilities to the host communities seriously and have endeavoured to implement the highest ESG standards from Day 1.

Sunstone released its inaugural Sustainability Report in 2023 which details the level of support and engagement with local communities and project stakeholders.