Changes of shareholders need to be registered with the Industrial and Commercial Bureau, and changes need to prepare relevant information of the company. A limited liability company's equity change must sign an equity transfer agreement.

Therefore, the equity transfer agreement is a necessary contract and is in written form. Even if the parties reach an agreement on the contents of the contract, but both parties have signed and sealed it, it cannot be considered that the contract is established.

legal ground

Article 490 of the Civil Code stipulates that if the parties conclude a contract in the form of a contract, the contract is established when the parties sign, seal or press their fingerprints.

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.