IMPACT uses sulphuric acid wch is a byproduct of the Nyrstar smelting process next door at Risdonmto make Single super phosphate, using imported Phos rock. Nyrstar also export Sulph acid, as well as supplying Impact.

Australia has always relied on imported ferts, whether it’s Phos products from Tampa, urea from the PG or Potassium from Canada. Yes. We do manufacture some,: the SSP at Risdon, Urea from natural gas in Qld, and various high analysis Phos products from Duchess near Townsville, but nowhere near enough for domestic consumption.. I wonder if Nyrstar’s electricity supply contract is coming up for renewal.