"The PEA economic evaluation is substantially complete except for the final inputs from the purification test work"

This clearly says that "except for the final inputs from the purification test work" the metallurgical tests are not satisfactory yet so they can't fianalize the PEA.

Where does it it say in the NR : "the metallurgical tests are not satisfactory yet so they can't fianalize the PEA."

You are clearly making up your own story here.