What grade is MCC Tian Chang in Changsha?

It's good.

MCC Tian often owns 179 domestic valid authorized invention patents, ranking third among Changsha enterprises, second only to Zoomlion and Sany Heavy Industry.

It is a large-scale international engineering company with design as the leader and EPC project general contracting as its main business, integrating engineering consultation, survey, design, technical equipment manufacturing and supervision.