By visitor
| Time | Name of Certifications |
|---|---|
| 1996 | Passed the certification of ISO 9002:1994 quality system in 1996 |
| 2002 | Passed the certification of Q9000 and ISO9001:2000 quality system in 2002 |
| 2006 | Passed the certification of ISO/TS 16949 quality system in 2006 |
| 2007 | Passed the certification of ISO14001 environment system in 2007 |
| 2007 | Passed the certification of OHSAS 18001 security system in 2007 |
