Abstract: The first industrial application of RIC-200 C8 aromatics isomerization catalyst in a 600 kt/a aromatics complex in Hainan petrochemical co. Ltd., SINOPEC was introduced. The complex adopts the domestic technologies. The industrial results indicate that the domestic technology of aromatic complex is successful. The energy consumpton is relatively low and RIC-200 catalyst performs a high activity and selectivity under the high load of 110%. The PX isomerization rate of RIC-200 is 22.86%, the ethylbenzene conversion rate is 27.40%, C8 aromatics loss in a singl-pass is 2.28%. It is concluded that the RIC-200 catalyst can satisfy the demand of maximum PX production for a PX complex.