A contract has been signed, and now if you want to supplement the contract content, both parties can negotiate to sign a new contract, and the original contract will be invalid. Both parties can also sign a supplementary agreement to the original contract. The supplemental agreement is part of the contract and has the same effect as the original contract. The title of the contract is not very important, but it is best to indicate in the contract that it is a supplement to the original contract and has the same effect. .

Legal Analysis

After negotiation and agreement, both parties can sign a supplementary agreement to the original contract, which should be attached to the back of the original contract and be taken out together when necessary. The supplementary agreement is part of the contract and has the same effect as the original contract. You can also sign a new contract and the original contract becomes invalid. After the contract is signed, if modifications are needed, the request for modifications should be made to the other party in a timely manner and the relevant modifications should be informed to the other party. If additional costs are incurred as a result, both parties can negotiate and sign a supplementary agreement to change the original contract. According to the relevant laws and regulations, the contract can be modified if the parties reach consensus through negotiation. If laws and administrative regulations stipulate that changes to a contract require approval, registration and other procedures, such provisions shall apply. Handling of unclear contract modification content If the parties’ agreement on the contract modification content is unclear, it will be presumed that the contract has not been modified. If the parties conclude a contract in the form of a contract, the contract is established when both parties sign, seal or fingerprint the contract. Before signing, sealing or fingerprinting, one party has performed its main obligations and the contract is established when the other party accepts it. Generally speaking, as long as the contract represents the true intentions of both parties, the contract is valid.

Legal Basis

"People's Republic of China and Civil Code"

Article 490: Where the parties conclude a contract in the form of a contract, the parties shall The contract is established when all parties sign, seal or fingerprint. Before signing, sealing or fingerprinting, one party has performed its main obligations and the contract is established when the other party accepts it. Laws and administrative regulations stipulate or the parties agree that a contract should be concluded in written form. If the parties do not use written form but one party has performed its main obligations and the other party accepts it, the contract is established.

Article 543: The contract may be modified if the parties reach consensus through consultation.

Article 119 A contract established in accordance with the law shall be legally binding on the parties.