XYB-1/2 box-type substation produced by Yihe was awarded with gold medal in the “Seventh Five-year” National Spark Program Achievement Expo in November 1991.

GCS low-voltage switchgear assemblies produced by Yihe were awarded with Certificate of United Supervision and Inspection of National Quality on Mechanical Products by the Ministry of Mechanical Industry of the People’s Republic of China in November 1997.

Yihe has been rated as high-tech enterprise in Qingdao from 1998 to now.

“Yihe” trademark was rated as “Famous Trademark of Shandong Province” in August 2003.

Yihe products were awarded with the title of “Shandong Famous Brand” in 2004.

Yihe was affirmed as “Enterprise Technology Center” by the Committee of Economic Trade in Qingdao in 2004.

Yihe was rated as “AAA Credit Enterprise” by the Agricultural Bank of China in 2005.

Yihe was rated as “Advanced Unit of Private Enterprise Quality Control in Qingdao” by the Quality and Technology Supervision Bureau in Qingdao in 2006.

Yihe was awarded with “Contribution Award of Private Technological Development” of national excellent private technology enterprises in November 2008.

Yihe was affirmed as the 15th batch of “Provincial Enterprise Technology Centers” by the Committee of Economic Trade in Shandong Province in December 2008.

Yihe obtained Grade-III Qualification for Discipline Contracting of Power Transmission and Transformation Project issued by National Committee of Housing and Urban-Rural Development and Grade-III License of Installation (Maintenance and Test) Contracting of Power Facilities issued by National Energy Administration in October 2009.

Yihe obtained Work Safety License issued by Construction Engineering Administration of Shandong Province in December 2009.

“Yihe” trademark was rated as “Famous Trademark of China” in December 2012.

Yihe has obtained the qualification of qualified supplier of State Grid Corporation of China successively from 2012 to now.

Yihe became the member of strategic alliance for industrial technology innovation of intelligent power transmission and distribution equipment in August 2013.

The Group passed ISO9001:2008 Quality Management System, ISO14001:2008 Environment Management System and OHSAS18001:1999 Occupation Health Safety Management System for all the products in March 2014.

Yihe high-voltage switchgear and low-voltage switchgear were affirmed as “2014 Brand Products in Shandong” in December 2014.

Yihe obtained the “Certificate of Access” of China Railway Construction Electrification Bureau Group Co., Ltd. in March 2015.

Yihe obtained the “Certificate of Access of Material Supplier” of China Railway Construction Electrification Bureau Group Co., Ltd. in June 2015.

Yihe obtained “Engineering Design Qualification Certificate [Grade-C Qualification for Discipline of Power Industry (Power Transmission and Transformation)]” issued by Shandong Provincial Department of Housing and Urban-Rural Development in August 2015.

Yihe obtained 2014~2015 “Trustworthy” enterprise publicity qualification of Shandong Administration for Industry & Commerce in August 2016.

Yihe passed Certificate of HSE Management System Assessment for all the products in March 2017.

Yihe obtained “AAA” Certificate of Enterprise Reputation Grade in Shandong Province and “AAA” Certificate of Credit Rating in Shandong Province in 2017.

Yihe obtained “Intelligent O&M Engineering Research Center for Electric Power Equipment in Qingdao” awarded by Qingdao Development & Reform Commission in September 2017.

Yihe was qualified for supplier base of military procurement net in October 2017.

Unit committee of National Technical Committee on High-voltage Switch Gear of Standardization Administration of China and Technical Committee on High-voltage Switch Gear and DC Power Supply of Standardization Administration of Power Industry

Standing council unit of Branch of High-voltage Switch, China Electrical Equipment Industrial Association

Established electrical product switchgear partnership with ABB.

Established technical and business partnership with Schneider.