Canada's reunited immigrants have passed the application for sponsorship. Do the application materials have to be mailed? How come? Where to send it?

After receiving the guarantee approval letter, you need to send your parents' immigration application documents to the Canadian visa office in your parents' country of residence to apply for an immigration visa. At present, Taiwan Province residents can send them to the visa office of the Taipei Economic and Trade Office; Residents of Hong Kong and Macao and Chinese mainland's four provinces of Hainan, Fujian, Guangdong and Guangxi can be sent to the Hong Kong Visa Office; Other provinces and cities in Chinese mainland should be sent to the visa office in Beijing.