1. Jade store: Go to the jade store or jewelry store and ask if you can provide the certificate of origin of the jade. Some professional shops will provide the origin and certification information of jadeite.

2. Jade Association: Contact the local or international jade association and ask if they can provide the certificate of origin of jade. Some jade associations will provide related certification and certificate services.

3. Jade identification agency: Find an approved jade identification agency and ask them if they provide jade origin certificate. These institutions usually have professional appraisers and equipment to ensure the origin and authenticity of jadeite.

4. Jade Trade Fair: Participate in the jade trade fair or auction, and have the opportunity to buy jadeite with certificate of origin. Some exhibitions and auctions provide information on the origin and certification of jadeite.

Please note that the certificate of origin of jadeite may require additional fees, and please ensure cooperation with reliable sources to ensure the accuracy and authenticity of the certificate.