Which form should I fill in for immigration supplementary materials?

Fill in the IMM5257 form. Supplementary immigration materials need to fill in the immigration form IMM5257, which is a form specially provided by the Canadian Immigration Bureau for immigration applications. This form needs to provide relevant materials, property, family situation and other information to determine whether you meet the immigration conditions and whether you are eligible for a visa. Immigration refers to staying in the country for several years after obtaining permanent residency and applying for citizenship.