China's two major orthoxylene producers,  Sinopec  and  PetroChina, raised their  domestic 

ex-tank prices by Yuan 200/mt on Monday, an end-user said Wednesday. 

Sinopec's new price is Yuan 6,700/mt, or about $887.60/mt on an import  parity  basis, while 

PetroChina's new price is Yuan 6,400/mt, or about $847.80/mt on an import parity basis. 

The last time Sinopec and PetroChina raised OX prices was on May 14, also by Yuan 200/mt. 

The international spot price of OX was last assessed May 18 at $850/mt CFR China, up $35/m

t week on week, S&P Global Platts data shows.