Thank you for your comments. Yes, many domestic chinese vessels are in poor shape and often overloaded (I have seen much worse examples than this one). Even though this vessel does not have an IMO number, some of her sister vessels do, e.g. this one:
http://www.shipspotting.com/gallery/photo.php?lid=3237406
Built in 2004... I believe that many vessels built in China for the domestic market utilise second hand (from scrapped vessels) and left over (not fitted/suitable for vessels built for international trade) equipment - Thus many with open lifeboats, what looks like 50 year old hatch covers etc.

BRGDS / foggy

A very interesting picture. I paid attention to the hatch cover system (the very old system with tilting wheels and chains linking the panels). I sailed in a vessel with that type of hatch covers but she had two dedicated windlasses, one at the break of accommodation and the other at aft part of the forecastle.
In this case, they seem not to have been installed, so I wonder if the system is electrically driven.
Another interesting respect is the open life boat, which gives an idea of a vessel at least 30 yeas old.
Kind Regards.

As to the Plimsoll mark : Location Jiangyin = Yangtze River = Freshwater. It's close but not over I would say.

Csaba: probably because, as a Chinese domestic trader, she does not have/need one

How come no IMO?

Also, the tarpaulins covering the hatches are there for one reason only, leaky hatch covers.

On the hull, beneath the accommodation ladder, there seems to be the painted over letters 'CTBC'?

Just a small trace of the Plimsoll mark visible, overloading seems to be common practice for the Chinese domestic fleet.