Ann: Quarterly Activities Report, page-94

The primary grade that is produced from the pilot plant will be used to qualify the product to customers, it won't be sold to them.

Though, in the fairness of discussing potential sales of post that qualification, how much production are you expecting from the pilot plant test tube operation? - I haven't seen any commentary from the company surrounding this detail other than that it is to prove the process for a final investment decision which has been pushed back to H2 2020.