| Six months ended 30 June | |||
| Results | 					 						2018					 											RMB'000					 											(Unaudited)					 				 | 									 						2017					 											RMB'000					 											(Unaudited)					 				 | 				Change(%) | 
| Operating revenue | 2,021,988 | 1,903,942 | 6.2 | 
| Total profit | 64,315 | 57,908 | 11.06 | 
| Net profit attributable to the Shareholders of parent company | 45,640 | 42,919 | 6.34 | 
| 					 						Basic and diluted earnings per share 					 											(expressed in RMB per share) 					 				 | 				0.4226 | 0.3974 | 6.34 | 
							
					 								Financial  Position				 									As at 30 June  2018 				
 RMB'000
 (Unaudited)									As at 31  December 2017 				
 RMB'000
 (Audited)									Change(%)				 							 								Total  assets				 									2,291,754				 									2,471,830				 									-7.29				 							 								Total liabilities				 									1,804,746				 									2,008,423				 									-10.14				 							 								Total equity				 									487,008				 									463,407				 									5.09				 							 								Net assets per share  				
(expressed in RMB per share)									4.51				 									4.29				 									5.09