If most of the level 1's raising prices incrementally on krono every day have a commonality in their naming (Chinese names) then that indicates that they're the same person or at least in league. The company wouldn't make that mistake or make it that obvious. So the buyer is a Chinese gold farmer who found a dupe, probably. Or if not a dupe, someone who's collecting plat from a variety of gold farmers and converting it. You've got Chinese farming crews running in Chardok and Seb 24/7/354, so whoever their boss is might just be pushing all the extra plat together and buying supplementary kronos.
Or.... Someone from China has a bunch of stolen CC info, buys Krono on burner accounts, sells those Krono for plat, then Xfers that plat to a non-burner account, uses that plat to buy clean Krono, then sells those Krono on ECtunnel, Player Auctions ect