Intermediary contract, also known as "intermediary service contract". It refers to the agreement that the broker provides the client with the opportunity or introduction to conclude a contract with a third party at the request of the client, and the client must pay the agreed remuneration to the broker.

A contract that meets the following conditions is valid:

1. The contractor has corresponding capacity for civil conduct;

2. The content of the contract reflects the true meaning of the signatory;

3. The contents of the contract do not violate the mandatory provisions of laws, administrative regulations or social public interests.

People's Republic of China (PRC) Civil Code

Article 143 A civil juristic act that meets the following conditions is valid:

(1) The actor has corresponding capacity for civil conduct;

(2) the meaning is true;

(three) does not violate the mandatory provisions of laws and administrative regulations, and does not violate public order and good customs.

Article 490 Time of Establishment of a Contract

If the parties enter into a contract in the form of a contract, the contract shall be 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.

Second, what problems should be paid attention to when concluding an intermediary contract?

(1) The client shall specify the contents of the intermediary entrustment activities in the contract, including the type, scope and requirements to be met, as well as the amount, method and time of remuneration payment.

(2) The broker shall truthfully explain to the client what he can do and what conditions are needed to complete the entrusted matters of the client.

(3) The contract shall specify the liability clauses for breach of contract. If a broker fails to perform his duties and causes losses to the client, he shall be liable for breach of contract and compensate the client for the losses. Brokers are obliged to keep confidential the information provided and the opportunity to complete the transaction.

(4) The subject of the intermediary contract is special. Laws and regulations should restrict the qualifications of intermediaries, require intermediaries to have corresponding knowledge, ability and working conditions, and stipulate that people with special powers such as state organs and leading cadres may not engage in intermediary transactions as intermediaries.

In fact, as can be seen from the above analysis, the effective conditions of any type of contract in China are basically the same. The main requirement is that both parties to the contract have the ability to bear civil liability, and the contract is valid only if it does not violate their own wishes. If the contract is invalid, you can contact a lawyer.