The machinery maintenance and repair project was started by Kian Sanat Shahbaz, a railway contractor, for the esteemed new employer of Raja Sanat in December 1999.

According to this contract, the responsibility for maintenance and repair of machinery (wagon lift jacks, cranes, air compressors, etc.) located in Tehran and areas (Tabriz, Ahvaz, etc.) to Kian Sanat Shahbaz Company, the top railway contractor. The Islamic Republic was ceded.