The Cuiú Cuiú project is located in the Tapajos Region of northern Brazil, 20 km northwest of Eldorado Gold’s Tocantinzinho project. The Tapajos Region was the site of a gold rush from the 1970s until the late 1990s with artisanal miners producing an estimated 20 to 30 million ounces of gold. The mineralization is hosted within the Brazilian Shield, which is Archean to Proterozoic in age and extends from Western Bolivia through Brazil to Guyana and Venezuela.

In July 2022, Cabral Gold published a resource estimate based on exploration drilling at four deposits called Central / CN, JB, MG, and PDM. The mineralization can be described as stockwork/sheeted veinlet systems hosted within broad, altered shear zones within granitic rocks. Individual veinlets are typically 0.2 to 2.0 cm in width but occasionally are up to 20 cm wide. The Indicated Resource consists of 21.6 Mt of 0.9 g/t gold material for 604 kozs of gold (0.14 to 0.26 g/t cut-off). The Inferred Resource totals 19.8 Mt at a grade of 0.8 g/t gold for 535 kozs of gold (0.14 to 1.15 g/t cut-off).

A prefeasibility study was released in 2024 outlining Cabral’s path to near-term cash flow from mining of near-surface oxides as a precursor step to developing the larger sulphide resource at depth.