The document states the company's invoiced sales price = around...

The document states the company's invoiced sales price = around $19500 / tonne

Which works out to be $19.50 / kilo sales price.

The only distributor around the world I can find selling it is Aquatic Technologies in Aust.

Their largest quantity is 3kg bags at a price of $65.50 / kilo.
They sell it on ebay as well

There seems to be only 2 maybe 3 service operators (Aust,UK & US) offering it as part of their treatments.

So 9 months into the supplier agreement, we may have a case of supplier regret.