Ann: Centrex to Investigate Phosphoric Acid Product, page-13

https://youtu.be/vtwxjwtE9MM

this is the link to the video, the company that owns this deposit in Canada is called First Phosphate. They are working with the same company as Centrex is re the Phosphate evaluation for Phosphoric acid.
interestingly they state they have no interest in the fertilizer market, they are just targetting high value tech applications such as iron phosphate lithium batteries. I dont have the expertise to compare the deposits of Centrex and First Phosphate, i suspect this is pretty complicated, given that Prayon have a pilot plant in Bulgaria just for this kind of work to test commercial processes and purity.

I also guess that the Centrex management think there is a decent chance it will work, or they would not bother to work with Prayon and vice versa. According to google.....Prayon have plants in 4 countries and revenue of over 650 M USD, it also seems they have built 130 phosphoric acid plants. It is a serious company which was a bit undersold in the Centrex ann I think.