Standard: CE Number: BST11020037EC-1 Issue Date: 2011-02-19 Scope/Range: ELECTRIC TESTER Issued By: Shenzhen BST Technology Co.,Ltd.

Standard: CE Number: BST11020037SC-2 Issue Date: 2011-02-19 Scope/Range: ELECTRIC TESTER Issued By: Shenzhen BST Technology Co.,Ltd.

Standard: ISO9001:2008 Number: 10113Q12148ROS Issue Date: 2014-04-07 Expiry Date: 2015-10-07 Scope/Range: Specializing in R&D Production Protection Relay Test Set and Measurement Instruments Issued By: Beijing Zhongliantianrun Certification Center

Standard: LABORATORY ACCRADITATION CERTIFICATE Number: CNAS L0685 Issue Date: 2010-01-27 Expiry Date: 2013-01-26 Scope/Range: Competence of Testing and Calibration Issued By: Ketop Laboratory of Xuchang Ketop Electrical

Standard: LABORATORY ACCRADITATION CERTIFICATE Number: CNAS L1379 Issue Date: 2007-08-24 Expiry Date: 2012-08-23 Scope/Range: Competence of Testing and Calibration Issued By: Nanjing Automation Research Institute of the State Grid Co.

Standard: CE Number: BST16042638A0001Y-1EC-1 Issue Date: 2016-04-13 Scope/Range: Power Analyzer Issued By: Shenzhen BST Technology Co.,Ltd.

Standard: ISO9001:2008 Number: 10116Q17703R1M Issue Date: 2016-10-09 Expiry Date: 2018-09-14 Scope/Range: Specializing in R&D Production Protection Relay Test Set and Measurement Instruments Issued By: Beijing Zhongliantianrun Certification Center