Type 96B is not in production yetChinese language Wikipedia's figures are as below:-
2,500+ type 96 and type 96A
500+ type 99 and 500+ 99A
are in PLA service.
Also, pls note that type 96B is not yet in mass production. The few units in existence are mainly for evaluation/demo test purposes.
Participation in past and future Russian army games was and will be a good testing ground to expose its strength and weakness. I suspect there will be changes to current type 96B. Probably they might use some technology from type 15 light tank before official induction into PLA.