Following this our phone discussion, I understood that your point and I have re-check in MRP. for some part we need and some part we no need (Ex. 9-40360-00-0-8, because we've part return from TEPM). Maybe it effected from PO at last year that we plus 30% in every PO.
So I will take this attached list into account when I calculate our needs for new PO., but I think we should inform to HIFULL when they make a invoice for payment they should use FIFO process for choose PO number it easy for control and manage.