To register a company on AliExpress, you first need to determine your company type and registration location. Then, you need to prepare relevant documents, such as business license, tax registration certificate, etc.

Next, you can choose to register your company at the local Industry and Commerce Bureau or relevant government departments.

During the registration process, you may need to fill out some forms, pay a certain registration fee, and provide relevant materials for review.

After completing the registration, you will obtain a company registration number and relevant certificates, and you can conduct business operations on AliExpress. Remember to consult a professional before registering to ensure that you understand and comply with local laws and regulations.