Please be advised that the email address setup fo vendor 30034295 CHEP (THAILAND) LTD. is th.customerorders@chep.com not Nuntawan.Khunthong@chep.com.
But if you still want to change the PO issuing email of the subject vendor, please provide a change form indicating the changes to be made. You may refer to the attached file.
*In lines 7 and 8, please indicate the supplier name and number