In terms of consumption tax, the cross-border account number registered by Chinese company sellers is not subject to consumption tax, so you can rest assured;
There is no requirement for VAT/GST and other tax numbers, and sellers in mainland China do not need local tax numbers to open stores;
In terms of tariff, due to the current regulations of the Brazilian customs, a certain proportion of tariff fees will be charged for imported products (for the specific tariff ratio, you are recommended to check the relevant official website of the Brazilian customs). At the same time, it is also recommended that you continue to pay attention to Amazon's official channels and learn about the various benefits of Brazil Station that will be released later, so as to better help you reduce costs and increase efficiency.
*Please note that the above information is for reference only. It does not constitute any tax, legal or other professional advice and should not be used as such advice. If you have any questions or need further details, you should consult your professional consultant.