From the Boa Esperança hill in the famous Carajás mining district in Pará, Brazil, the horizon seems to endlessly stretch away from the deposit which is the highest ground in the area, a metaphor perhaps for Ero Copper as it prepares to embark on a major new mine build which will continue its vertiginous growth rate since being formed in 2017. As if to emphasise the scale of the opportunities the company sees before it and has shared during its first ever analyst site visit to the project, a rainbow arcs over where the processing plant will be, which with Boa’s high grade, means it is set to be a high margin deposit which will produce a pot of gold for the company and perhaps become the hub for a much larger Ero Copper presence in the region. At a time when the copper sector is struggling to mount a response to a growing supply deficit, Ero Copper is in full growth mode.