The parties shall fully perform their respective obligations as agreed in the contract. The parties shall comply with the principle of good faith, and perform such obligations as sending notification, rendering assistance, and keeping confidentiality in accordance with nature and purpose of the contract and the course of dealing. The parties shall avoid wasting the resources, polluting the environment, or damaging the ecology in the course of preformance of the contract.

According to Article 469 The parties may include 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, fascimile, or the like.

A data message in any form, such as electronic data interchange and emails, that renders the content contained therein capable of being represented in a tangible form and accessible for reference and use at any time is deemed as a writing.