...OK, so not much use to China.
How about exporting to Iran or somebody who wants to send them to make trouble elsewhere?
You know that Iran is Shiite Afghan Sunni right? They'll show up, but if the Afghan National Army was going to be a thing, they had to have ordnance. All this should have been demo-ed when it was obvious the place was going down, it wasn't, but since no numbers were given, I doubt it is much of an increase in AT weapons in a country awash with them. It is a small money oversight in a cock-up of gargantuan proportions.