Provided that the additional capex to introduce a circuit to...

Provided that the additional capex to introduce a circuit to recycle the acid isn't prohibitive, then it will be a good cost saver. Depending on what kind of deal can be done on the acid supply, it's probably going to come in somewhere int he US$180-US$250/t range. However, with the rumblings from the DRC over banning the export of concentrates it kinda limits the options available to do an offtake deal for the Cu & Co concentrates with a smelter in Zambia, given that Zambia was identified in the valuation report as the source of the acid supply and the only suppliers of acid there are the copper smelters.