1. Jewelry and jade jewelry are entrusted for processing and filing, which proves that your original stone has been polished.
2. Business license, which proves that your original jadeite stone was obtained through legal channels.
3. Tax registration certificate, which proves that your original jadeite stone was obtained through legal channels.
4. Organization code certificate, which proves that your original jadeite stone was obtained through legal channels.
5. Inspection certificate, which proves that your jadeite stone meets the national standards.
The above documents may be different according to different regions and different companies. Please consult the local administrative department for industry and commerce or the tax authorities for details.