Cadence Minerals has received the operating licence for its Azteca iron ore plant in Brazil, meaning it is now permitted to begin production. Subject to the delivery of a final tranche of previously-agreed non-dilutive funding Cadence will now ramp up production at Azteca in short order, with the aim of hitting a rate of 380,000 tonnes. This is just the first step though in a series of much more ambitious plans for the development of the wider Amapa project. This could eventually be producing 5.5 million tonnes per year. Cadence’s chief executive Kiran Morzaria joins Vox to tell us what happens next.