By this time, Liu Qian and Chai Ren's men had also arrived, carrying special boxes to repack everything because these were weapon-filled crates marked with specifications and models. To transport such goods back home would invite trouble at customs.
That's the advantage of having Wangsa issue a permit, there's no problem with the origin of the goods, and he helps handle customs. There's no need to prepare even the paperwork; just scribble some lines, use Tang Kai's company name, and the lowest tax bracket applies. It's an all-in-one service.
Of course, it's not entirely free. Wangsa helps forge relationships, expedites processes, offers the lowest discount, and ensures goods won't be detained by Thai customs, among other things. Still, there are other mouths to feed; after all, they're not part of the same system. But the total cost of only half a million dollars is not much compared to the value of the goods.