1. National Jewellery Inspection is a national quality inspection institution authorized by the State Administration of Market Supervision according to law. It is the first institution in the field of jewelry and jade inspection in China that has passed the qualification verification, and it is the authoritative institution in the field of jewelry and jade inspection in China.

2. National Jewellery and Jade Jewelry Inspection Group Co., Ltd. has laboratories in Beijing, Shanghai, Guangzhou, Shenzhen, Kunming, Pingzhou, Shenyang, Xi 'an, Suzhou, Jieyang, Zhuji, Ruili, Sihui, Hangzhou, Dongguan, Hong Kong and other places to undertake the tasks of supervision, spot check, arbitration inspection and entrusted inspection by government departments such as the market supervision, public security, justice and customs, and provide authority for the government and society.