In this case, as discussed with Khun Phut, his reasons are as following below krab.
1. He would like to the transport get back the BO together RTN in the same time monthly.(no have the space for keeping the BO in KK/WH, right now still be in KK/WH around 20 pallets)
2. No have the time for counting the BO, due to products daily access to KK/WH since Oct '13 krab.
If possible, would like to get back the BO all round of transportation from each staion krab. So that will have the the space for keeping the BO krab.