Under Chinese law, a contract may be in any form.
Article 469 of Civil Code of China provides that:
The parties to a contract may conclude a contract in writing, orally, or in other forms.
A writing refers to any form that renders the content contained therein capable of being represented in a tangible form, such as a written agreement, letter, telegram, telex, or facsimile.
A data message in any form, such as electronic data interchange and e-mails, that renders the content contained therein capable of being represented in a tangible form and accessible for reference and use at any time shall be deemed as a writing.