Qinghe intake and exhaust system industrial Park started construction

Beijing Conneria Changchun yili established quanjiao Yili established

Wuxi Yili was established xi 'an Yili was established

Dingyuan Yili Filtration Co. LTD

Hebei Yilikangnalia tail gas treatment Company was established

Huagong Eili filtration Technology Joint RESEARCH and development Center was established

Qingdao Rotek was established

Tianjin Yili Qingdao Glende was established

SCR post-processing system began to be developed

The whole group began to implement lean production system