1. Yes.

2. Amazon requires sellers to register a brand when selling goods on its platform. This is to protect the rights and interests of consumers and prevent the emergence of counterfeit and shoddy goods. Brand registration can ensure that the goods sold by sellers are authentic and legal, and have a legal authorization relationship with the brand owner.

3. Brand registration can not only increase consumers' trust in the goods, but also increase the exposure and sales opportunities of the goods. In addition, brand registration can also help sellers protect their intellectual property rights and prevent others from misappropriating their brands. Therefore, it is very important to register an Amazon brand, which can bring more business opportunities and benefits to sellers.