BBX holds 3 tenements totalling 8640ha at Juma East, located approximately 60km NE of Apui. The tenements are located in a favourable geological setting in prospective metasediments and metavolcanics of the Iriri and Colider Groups.
BBX commenced exploration at Juma East in 2013, outlining 7 initial targets of interest: Negão, Boia Velha, Guida, Plato, Pintado, Tiririca and Pepita (see figure below). Reconnaissance exploration including broad-spaced soil geochemistry initially focused on the Guida target, where widespread outcrops of altered siliceous rocks displaying textures typical of low sulphidation epithermal gold systems were located. Initial soil sampling results also defined geochemical signatures suggestive of alkalic copper-gold porphyry systems, including strong coincident arsenic-vanadium anomalies associated with magnetite in the soils.
In September 2015 BBX commenced a 1400-metre drilling programme at Juma East. 6 holes, JED 001-006 were drilled in the initial hole programme at Juma East, comprising three holes testing the interpreted breccia pipes at Plato (JED-001 to 003) and three holes testing the Guida low-sulphidation epithermal system (JED-004 to 006) (see map below). Initial routine fire assays failed to detect significant levels of precious metals but subsequent testwork using proprietary techniques revealed the presence of high levels of gold, platinum and palladium. Follow-up testwork was suspended following the loss of a major part of the Juma East tenement holding to the Acari National Park, promulgated in April 2016.