Children are reunited with immigrants, and their passports are not returned.

I didn't need your mother's original passport, so I returned it. I don't know where you are. The process of family reunion in Canada: the guarantor, that is, your mother, submits an application to the processing center in Mississauga, Canada-the center checks whether the guarantor meets the guarantee requirements-the center transfers the application to the Canadian embassy in China-the embassy gives the file number-informs the interview or exempts the interview-and stamps the guarantor. You can use the file number to check the approval progress on the website of the embassy in China.