QUALITY MANAGEMENT SYSTEM CERTIFICATE

Period: 2011-02-17 / 2014-02-16

Certificate Encoding: -

Certification bodies: 北京中润兴认证公司

ENVIRONMENTAL MANAGEMENT SYSTEM CERTIFICATE

Period: 2011-01-19 / 2014-01-18

Certificate Encoding: -

Certification bodies: 北京中润兴认证公司