through the enterprise credit certification of the National Comprehensive Credit Evaluation Center, the comprehensive analysis and evaluation of SDGI enterprises' good credit records, business conditions and development prospects, etc.,

28th, the 24th China Expressway Information Technology Products Exhibition was grandly held in Hunan·Changsha International Convention and Exhibition Center. The meeting discussed in depth the application and development of new generation information technology in the planning, design, construction, management and operation of expressways.

On June 1, 2022, chongqing economic and information commission issued a "about published in 2022 in chongqing specialization," with core competence in the field of optical cable, optical cable , Chongqing branch of SDGI was named "specialization and the new company ",which is small and medium-sized enterprises in Chongqing.