1 Engineering AC BD Genaral PO. All amount
w. supplier evaluation at least 2 supplier
2 Construction AY BD Genaral PO. All amount at least 3 supplier
w. supplier evaluation
AC BD Genaral PO. All amount at least 3 supplier
AY as contractor
w. supplier evaluation
3 Back Office BD LESS THAN 10,000 BAHT at least 2 supplier
BD AC/AY OVER 10,000 NAHT at least 2 supplier