Special Class for General Contracting in Building Works Construction;

Special Class for General Contracting in Highway Construction;

First Class for General Contracting in Municipal and Public Works Construction;

First Class for General Contracting in Mechanical and Electrical Installation Works Construction;

First Class for Speciality Contracting in Base and Foundation Works;

First Class for Speciality Contracting in Steel Structure Works;

First Class for Speciality Contracting in Highway Pavement Works;

First Class for Speciality Contracting in Roadbed Works;

Speciality Contracting Qualifications in City Rail Traffic Works.