1, failed the security check: jewelry fairs usually set strict security check standards to prevent anyone carrying potentially dangerous goods from entering. If you are found carrying dangerous goods, you will be prohibited from entering the exhibition hall.

2. Failure to meet the admission requirements: Before entering the Hong Kong Jewelry Fair, you will be required to show your valid pass or specific admission documents. If you do not apply in advance or do not meet the admission conditions, you may be refused entry.

3. Unable to provide identification materials: If you can't show your ID card or other valid identification documents, you may be refused entry.

4. Abnormal behavior or threat: If your behavior is abnormal or regarded as a potential threat, such as verbal attacks or violent tendencies against security personnel, you may be prohibited from entering.