I'VE TEACH OUR FINANCE TEAM TO MAKE WITHHOLDING TAX IN ALL ASPECT.I THINK THEY CAN UNDERSTAND WELL IN THE PROCESS OF W/H DEDUCTED .FOR WITHHOLDING TAX PROGRAM I HAVE COMPARE MANY COMPANY AND I SEND DETAIL TO IT PRESON TO CHECK IS IT OK WITH COMPANY SYSTEM .NOW WAITING FEED BACK FROM HIM