Norinco AH-4 155mm Light-weight Howitzer, AKA Chinese M777 via Chinese Defense Blog.

According to Norinco, this AH-4 weighting in about 3,000kg, just a bit lighter than the US M777 counter part and chambered to fire all standard NATO 155mm rounds.

Hmm.  Lighter than the M777?  I wonder how many rounds it can fire before it breaks.  Confidence is not high.