Law No.9/2021 on Protection of the Rights and Interests of Consumers mentions several sentences regarding product labeling, which are as follows:

1. If a product requires special care, instructions, specific procedures, or particular methods for use, handling, or consumption, it must be accompanied by instructions or a user manual in Chinese and Portuguese, or Chinese and English, prior to being placed on the market.

2. For imported products, the importer is responsible for providing the corresponding instructions or user manual in Chinese and Portuguese, or Chinese and English. The content must be no less detailed than that provided in the country of origin.