Seems logical to me.....China hauls away almost a metric ton of rocks...... we, SRSR, are going to take some samples from those rocks to test concurrently.
Why?
In case our awesome new potential JV partners Chinese lab says "whoops no good see? lets renegotiate..."
Then SRSR can say....."gee thats odd, we assayed part of the same sample, and came up with this?....plz dont lowball us".
Seems like a routine thing to do. Likewise they might like to check and make sure our numbers are correct.