Legal provisions prohibiting estoppel by agreement

Legal analysis: the contract will take effect immediately after signing. If going back on our word after signing the contract is a breach of contract, we should bear the liability for breach of contract. In principle, you can't go back on your word after signing the agreement. Because the agreement and the contract have the same legal effect, as long as they are signed, both parties must abide by them unless the agreement itself is invalid. A private written agreement is a settlement after a dispute occurs. After the private agreement is signed by both parties, it is a free and true expression of the will of both parties and has legal effect. If the other party goes back on his word, he can bring a lawsuit to the court according to this written agreement.

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

Article 490 Where the parties conclude a contract in the form of a contract, the contract is formed when the parties sign, seal or fingerprint it. Before signing, sealing or fingerprinting, one party has fulfilled its main obligations, and the contract is established when the other party accepts it. A contract shall be concluded in written form as stipulated by laws, administrative regulations or agreed by the parties. If the parties do not do this in writing, but one party has fulfilled its main obligations and the other party accepts it, the contract is established.

Article 502 A lawfully formed contract shall become effective upon its formation, unless otherwise provided by law or agreed by the parties. In accordance with the provisions of laws and administrative regulations, if the contract should go through the approval procedures, such provisions shall prevail. If the failure to go through the formalities such as approval affects the effectiveness of the contract, it will not affect the performance of the obligation clauses such as approval and the effectiveness of relevant clauses in the contract. If the party that should go through the formalities for approval fails to perform its obligations, the other party may require it to bear the responsibility for violating its obligations. The modification, assignment and dissolution of a contract shall be subject to the provisions of laws and administrative regulations, and the provisions of the preceding paragraph shall apply and shall be subject to approval.