1. Tripartite agreement requires the signatures of all three parties. A tripartite agreement is usually invalid if one party does not sign it. However, if one party has not signed it, but has fulfilled its main obligations and the other parties accept it, the tripartite agreement is valid.

2. Legal provisions: 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.

2. Do I need to pay liquidated damages for breaking the contract after signing the tripartite agreement?

In practice, when signing a tripartite agreement, the situation of breach of contract is generally stated and the amount of liquidated damages is explained. Therefore, if you breach the contract after signing a tripartite agreement, whether you need to pay liquidated damages depends on the content of the agreement.

Moreover, according to the agreement of the tripartite agreement, it will be handled in the following ways:

1. If the liquidated damages are stipulated in the agreement, whoever breaches the contract will pay the liquidated damages, but if the liquidated damages are too high, it may be required to reduce them.

2. If there is no provision for liquidated damages in the agreement, there is no need to pay liquidated damages.

Therefore, if you don't want to go to the post agreed in the agreement, whether to pay liquidated damages after breach of contract needs to be handled in accordance with the agreement.

In addition, when signing a tripartite agreement, it will directly involve vital interests, so we should pay attention to the following points when signing the agreement:

1. When signing a tripartite agreement, college students should first look at whether the name of the employer filled in is consistent with the name of the effective seal of the unit. If not, the agreement is invalid. When filling in your own professional name, it should be consistent with the professional name of the academic affairs office of the school and cannot be abbreviated.

2. Foreign enterprises, joint ventures and private enterprises generally adopt a probation period, which can range from 1-3 months according to the length of the contract. Usually, the probation period is 3 months, and shall not exceed 6 months. State organs, universities and research institutes generally take a probation period, which is generally one year.

3. The agreed liquidated damages cannot be too high. Students should try their best to minimize the liquidated damages during negotiation, which usually does not exceed 5,000 yuan.

4. Graduate employment agreement is a "format contract". Graduates can explain the welfare benefits such as vacation, housing and insurance reached before signing the contract in the remarks column. If there is a dispute, they can use it to safeguard their legitimate rights and interests.

5. When signing the agreement, students should strictly follow the prescribed steps.

The above knowledge is Bian Xiao's answer to relevant legal questions. A tripartite agreement requires the signatures of all three parties. If one party does not sign, the tripartite agreement is generally invalid. However, if one party has not signed it, but has fulfilled its main obligations and the other parties accept it, the tripartite agreement is valid. If you need legal help, readers can consult and have professional lawyers to answer.