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.

On the afternoon of April 2, SDGI held the 2021 annual summary and commendation conference, review and summarize the operation and management work in 2021, commend and reward the outstanding teams and individuals of the year, deploy the work tasks in 2022, call and mobilize all the staff, strive hard and strive to complete the work tasks in 2022.

From March 6th to 10th, local time, the 47th Optical Fiber Communication Exhibition and Conference (OFC) was grandly opened at the San Diego Convention Center in the United States.

On April 8, SD Group, SDGI and Tencent Cloud held a strategic cooperation agreement signing ceremony in SDG Infoport. In this strategic cooperation, the three parties will rely on their respective resources

Recently, SDGI has successfully passed the on-site audit of the national Ministry of Industry and Information Technology's Integration of Informatization and Industrialization (short as “two integration”) management system, and obtained "AAA level" rating.

On September 16, the 23rd China International Optoelectronic Expo (CIOE 2021) was grandly opened in Shenzhen International Convention and Exhibition Center for a period of three days.

On 8th,SDGI Optical Fiber (Dongguan) Co., LTD opened in SDGI Optical Communication Industrial Park, Liaobu Town, Dongguan City. The project has a total investment of about 180 million yuan