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Certifications
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| Certificate： | ISO9001:2008 | ISO9001:2008 | ISO14001 Certificate |
| Issuing： | Beijing Head International Certification Co.,Ltd | Beijing Head International Certification Co.,Ltd | Beijing Head International Certification Co.,Ltd |
| Date： | 7 May 2012 | 7 May 2012 | 7 May 2012 |
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| Certificate： | ISO14001 Certificate | TUV Certificate | |
| Issuing： | Beijing Head International Certification Co.,Ltd | TUV Germany | |
| Date： | 7 May 2012 | 23 May 2013 |