Why do you need a mother's blood type certificate to immigrate to Hong Kong?

To immigrate to Hong Kong, according to the requirements of Hong Kong immigration policy, it is necessary to provide proof of biological mother's blood type. According to the relevant laws and regulations of the Hong Kong SAR, if an applicant wants to include a child born in Hong Kong in his immigration application, he/she must provide relevant supporting materials of the biological mother, including the blood type certificate of the biological mother.

The purpose of the biological mother's blood type certificate is to ensure that the applicant's kinship in Hong Kong is true and effective. Blood type is a genetic feature, and the kinship between the biological mother and the applicant can be verified by blood type certificate. This is to prevent false immigration applications and ensure the fairness and standardization of the immigration system.

It should be noted that I can only provide general information, and specific immigration policy requirements may change at any time. If you have a specific case or personal situation, I suggest you directly consult the relevant immigration agencies or relevant departments of the Hong Kong Special Administrative Region to get the most accurate answer.