Legal analysis: it is valid only if the following conditions are met: 1. When concluding a contract, the parties must have the corresponding contracting ability. 2. The intention of the parties to the contract is true. 3. The contract does not violate the law or public interest.

Legal basis: Article 465 of the Civil Code of People's Republic of China (PRC).

Contracts established according to law are protected by law. A legally established contract is legally binding only on the parties, except as otherwise provided by law.

Article 470 of the Civil Code of People's Republic of China (PRC)

The contents of a contract are agreed upon by the parties, and generally include the following terms: (1) the name and domicile of the parties; (2) Subject matter; (3) quantity; (4) quality; (5) Price or remuneration; (6) Time limit, place and method of performance; (7) Liability for breach of contract; (8) Methods for resolving disputes. The parties may conclude a contract by referring to the model texts of various contracts.