CERTIFICATE OF CONFORMITY
OF ENVIRONMENT MANAGEMENT
SYSTEM CERTIFICATION
( NO.03613E20094R0S)

 CERTIFICATE OF CONFORMITY OF QUALITY MANAGEMENT SYSTEM CERTIFICATION ( NO.03613Q20543R1S)

 CERTIFICATE OF CONFORMITY OF OCCUPATIONAL HEALTH AND SAFETY MANAGEMENT SYSTEM CERTIFICATION (NO.03613S20044R0S)

NACE Certificate-CP2 (NO.25157)

 NACE Certificate-CP4 (NO.17972)

NACE Certificate-CP3 (NO.25158)

UTILITY MODEL PATENT CERTIFICATE-BURIED TYPE COPPER/COPPER SULFATE REFERENCE ELECTRODE (NO.ZL200620085083.X)

 UTILITY MODEL PATENT CERTIFICATE-ICCP DEVICE FOR POWER PLANT CONDENSER(NO.ZL200520086681.4)

 UTILITY MODEL PATENT CERTIFICATE-ICCP DEVICE FOR STEAL STORAGE TANK(NO.ZL200520086753.5)