I find this logic as pertaining to these relationships somewhat confusing.

If China wanted to buy out GRZ interest, then wouldn't they want to acquire it at the lowest possible price. I believe that such a play should have reflected a similar pattern as what we experienced with our KRY SP.

That is, unless China and Ven had already acquired their position when the SP for GRZ was barebones. If that was their plan, then they are in a position to capitalize on the upswing of GRZ SP regardless of the final outcome and will be in the know on when to sell-off prior to a release for public consumption.