20 19 parents have green cards to visit relatives or emigrate for their children. What materials are needed and how long will it take? Thank you for your answers.

First of all, it is necessary for children to go to the local notary office to open a Chinese and English kinship certificate with their parents. Then mail it to parents, and parents will take this certificate to the local immigration office to apply and fill out the reunion immigration form. If children are over 2 1 year old, they need to sign a financial guarantee for one to ten years. Upon receipt of the applicant's form, the Immigration Bureau will notify the China Consulate. The consulate will interview the applicant's children and issue a physical examination form. After completing the physical examination, the results should be filled in the immigration physical examination materials issued by the consulate, and finally wait for the consulate to issue a permanent visa.