Baggage tag through, Air Canada at Fuyong Port

Hi, Carlos, for your situation, it is suggested to contact the airline company directly and what you need to do is to following the steps they provide you to enjoy the baggage tag through service.

I´ve contacted Air Canada in Brazil, but here they do not have those informations.

I beg you to contact the Air Canada's office in your port and ask them about the Baggage tag through.

As I know, the Air Canada provides the tag through service, but the service is limited to ferry numbers with the prefix 3A.
So please do not worry about it.
In my opinion, you do not need to call the airline company again. You just need to reach Fuyong Port early and ask the staff at the port to help you to help you to enjoy the service.