Where the parties conclude a contract in the form of a contract, the place where the contract is finally signed, sealed or fingerprinted shall be the place where the contract is established, unless otherwise agreed by the parties.

After the contract comes into effect, the parties have not agreed or clearly agreed on the quality, price or remuneration, place of performance, etc. They can supplement it by agreement. If a supplementary agreement cannot be reached, it shall be determined in accordance with relevant regulations or trading habits. The parties may conclude a contract by offer, acceptance or other means.

The place where the acceptance takes effect is the place where the contract is established. Where a contract is concluded in the form of a data message, the recipient's principal place of business is the place where the contract is established. If there is no main place of business, the domicile shall be the place where the contract is established.

A promise to make an immaterial change to the contents of an offer is valid, unless the offeror expresses his objection in time or the offer indicates his commitment not to make any change to the contents of the offer, and the contents of the contract shall prevail.

Subscribe, order, book, etc. A contract that the parties agree to conclude within a certain period of time in the future constitutes an appointment contract. If one party fails to perform the obligation of concluding a contract as stipulated in the appointment contract, the other party may require it to bear the responsibility for violating the appointment contract.

Article 490 of the Civil Code of People's Republic of China (PRC): If the parties conclude a contract in the form of a contract, the contract is concluded 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 491 The parties entered into a contract in the form of data messages. It is also required to sign a confirmation letter, and the contract is established when the confirmation letter is signed.

If the information of a commodity or service released by one party through information networks such as the Internet meets the conditions of the offer, the contract is established when the other party successfully selects the commodity or service and submits the order, unless otherwise agreed by the parties.