1.Passed SGS ISO9001:2015 quality management system certification, certificate number: CN17/30462
7. Passed SGS ISO14064-1:2006 greenhouse gas verification statement certification, certificate number: CN17/31616
8. Passed SGS IECQ QC080000:2017 environmental management substance management system certification, certificate number: IECQ-H SGSCN 18.0067