Great Southern Copper has drilled 106 metres, grading 0.33% copper with additional molybdenum, at its Artemesia North prospect in Chile. The company is now confident it is sitting on a porphyry system of some kind, although the scale won't become clear until more work is done. In the meantime, assay results from more scout holes are pending.

Chief executive Sam Garrett joins Vox Markets to tell us what it means and what happens next.