"25000 tpa is alcoa""SSC alone produces nearly four times the...

"25000 tpa is alcoa"

"SSC alone produces nearly four times the 25,000 tonnes per annum salt slag that the entire Australian secondary aluminium industry produces.

Alreco processes 100% of the salt slag that is produced in Australia and aims to achieve a similar outcome in the US, and ultimately globally."

source: Joint Feasibility Study Commencement and Capital Raising

"The contract provides for between 33,000 and 39,000 tonnes of salt slag to be processed over a three year period. Alcoa is to pay $300 per tonne of material processed, and retains ownership of the recovered aluminium metal and salt / potassium chloride blend."
source: Annual Report to Shareholders

so where will the other 12~14kt of salt slag go to if alcoa produces 25,000tpa of salt slag?