There are 173 enterprises that propose to upgrade their qualifications, but only 44 enterprises have passed the initial audit, including 8 electric power qualifications, 3 mine qualifications, 10 mechanical and electrical qualifications, 6 tunnel qualifications, 7 steel structure qualifications, 3 petrochemical industries, 2 railway levels, 3 bridge engineering levels, 1 railway electrical level two, 1 railway electricity level two, the newly upgraded 13 building special qualifications have not passed, the power special grade has 1 application has not passed, the petrochemical special grade 2 applications have not passed, and the metallurgical level has 3 applications have not passed！
Out of the construction of general contracting level 1 (equity transfer), highway engineering construction general contracting level 1 (equity transfer), municipal public works general contracting level 1 (equity transfer), water conservancy and hydropower engineering construction general contracting level 1 (equity transfer).
8 power first-class qualifications
7 steel structure first-class qualifications
10 first-class mechanical and electrical qualifications
3 mines have first-class qualifications
3 bridges have first-class qualifications
3 first-class petrochemical qualifications
6 tunnel first-class qualifications
1 railway electrification level 2
1 railway electrification level II
2 Grade II Railways