The merchant near Hengsha's seaport now sell different objects video - Deus Ex Human Revolution: MOD Hardcore Revival for Deus Ex: Human Revolution
Deus Ex Hardcore Revival is a mod for Deus Ex Human Revolution Director's Cuts. The aim of this mod is to make the gameplay more balanced, since IMHO the game was inciting the player to play too much in a certain way. Last Version 1.020
NB: This video corresponds to the Version 1.0 of the Hardcore Revival mod (the mod has been upgraded to the Version 1.01 and a lots of things which appear in this video have been changed but watching the video will give you an idea of what the mod is about).
So, the mod Hardcore Revival (Vgrog) for Deus Ex Human Revolution change, amongs other things, the items sold by the game's merchants. In this example, the 3rd merchant found in Hengsha who looks like a gangster from the 1930s era now only sell items which suits his 1930s gangster look.