1. Faxes are legally binding and valid for a long time.

2. However, faxes cannot be stored for a long time. Generally, the handwriting will fade and blur in about 3 years. Such faxes cannot prove the facts of the contract in the long run.

3. It is recommended to quickly sign the contract by fax, and then ask the other party to mail a written contract with the same content and a true signature.