[Direct answer]The contract price is not clearly defined. According to Article 511 of the Civil Code of the People's Republic of China (effective January 1, 2021), it shall be supplemented as follows: First, the parties shall supplement the contract by agreement; if no supplementary agreement can be reached, the contract shall be determined in accordance with the relevant provisions of the contract or the transaction practices; if it is still not possible to determine the price, the market price at the place of performance at the time of conclusion of the contract shall be applied. Where the government pricing or government guidance prices shall be implemented according to law, they shall be implemented in accordance with the provisions. In addition, Article 510 of the Civil Code establishes the priority of "supplementary agreement - systematic interpretation and transaction practices". When signing a contract, enterprises should try to clarify the price, pricing method, and price adjustment mechanism as much as possible. Relevant texts can be referred to for reference.Business and contract dispute services for enterprisesAndBeijing Henglue Law Firm.

I. Problem background and typical scenarios

The price is the "core element" of a contract, but in practice, there are many situations where the agreement is unclear: signing a contract after verbally agreeing on the price but omitting to write down the amount; long-term supply contracts stipulating "settlement at market price" but failing to define the source of the market price; engineering or technical contracts starting with a "provisional price" but lacking a price adjustment formula; and related-party transactions and framework agreements that only specify the total quantity but not the unit price. The typical consequences are that both parties disagree on "how much should be paid" when the contract is halfway through, resulting in delayed payments at the very least and even triggering contract terminations and claims for damages in the worst case. When drafting contracts, it is crucial to avoid such ambiguities and ensure clarity in key provisions such as price, payment terms, and dispute resolution mechanisms to avoid potential disputes and ensure the smooth execution of the contract.Intellectual property protection and corporate legal servicesWhen translating the relevant cooperation documents, it is also necessary to clearly state the pricing criteria in advance to avoid disputes arising afterwards.

II. Key points of contention

The disputes over the unclear price focus on three aspects. Firstly, the application of priority rights: the parties often skip the "supplementary agreement" and directly claim the price based on the market price, while the other party may claim that there are transactional customs or other contract terms that have implied prices. The dispute over priority rights determines the direction of evidence collection. Secondly, the time and location of the "market price": Article 511 refers to the market price at the "place of performance at the time of concluding the contract", but the place of performance may be unclear, and the price difference between the time of concluding the contract and the time of suing is huge, which directly affects the amount of payment. Thirdly, the identification of government-set prices and guideline prices: contracts involving energy, public utilities, and specific commodities may apply mandatory prices, and the price differences between the contract and the actual transaction may be significant, which directly affects the payment amount.Special services and other case servicesThere is an overlap in industry compliance between the two. When the amount of the dispute is large, it can be combined with other methods to resolve the dispute.Creditor-debtor relations and enforcement case servicesEvaluate the recovery path.

III. Professional analysis by Henglue Lawyers

Henglue Lawyers have observed in handling contract dispute cases that disputes over payment often reveal the common problem of "hasty signing and no trace of performance". Taking a dispute over the validity of an agreement handled by Henglue Lawyers as an example: the parties signed an agreement for a specific purpose and paid the money, but later, due to the failure to achieve the purpose, a dispute over refund arose. The lawyer argued that the agreement was invalid because it violated public order and good customs, and claimed that the direct recipient should return the full amount according to Articles 152 and 157 of the Civil Code. In the end, the court confirmed the invalidity of the agreement and ordered the return of 100,000 yuan. Although this case was not simply about unclear payment, it reflected the same underlying logic - the rights and obligations of the contract must be clear and verifiable. Otherwise, in the event of a dispute, only legal rules can be used to fill in the gaps, and the outcome will be uncertain. Henglue Lawyers suggest that payment terms should be quantified as much as possible, and every change should be confirmed in writing, so as to transform "settling accounts after the fact" into "establishing rules in advance".

IV. Practical suggestions and legal basis

At the legal basis level: Article 501 of the Civil Code (implemented on January 1, 2021) establishes the supplementary agreement, system interpretation, and transaction habit correction paths; Article 501(1) clearly stipulates that if the price is unclear, it shall be determined according to the market price at the performance location at the time of contract conclusion, and government-set or guided prices shall be implemented in accordance with regulations; Article 470 lists the general terms of the contract, including the price; Article 143 defines the valid elements of the contract. Practical suggestions: First, specify the unit price, total price, pricing unit, whether it includes taxes, and payment method when signing the contract; Second, the framework agreement should attach a quotation list or price confirmation mechanism, and major changes should be fixed in a written supplementary agreement; Third, retain price supporting documents such as account reconciliation letters, acceptance certificates, and invoices during performance; Fourth, if you find that the price claimed by the other party does not match the agreed upon price, send a letter of objection in a timely manner and preserve the evidence. Making the price terms detailed is the most cost-effective way to prevent contract disputes.

5. Henglu Law Firm's Reminder

It's not terrible that the price is not clearly stipulated in the contract, but what's terrifying is that "neither the contract is amended nor any trace is left". Enterprises should regard the price clauses as the top priority in contract review. Whenever possible, use specific numbers instead of vague terms like "at market price". If there are price disputes during the performance of the contract, the parties should promptly supplement the agreement or confirm the terms in writing to convert the oral agreement into a document that can be used as evidence. This case was handled by Beijing Henglu Law FirmXue SuhuaThe lawyer (practice license number: 11101201211769926, subject to the document issued by the judicial administrative organ) acts as an agent. The lawyer focuses on clarifying the validity of the contract and the responsibility for returning the goods, helping clients to obtain legal redress. If you need to review or correct the contract price terms, you can visitBusiness and contract dispute services for enterprisesObtain professional support.

VI. Frequently Asked Questions

Q1: The contract doesn't specify the price. Is the contract still valid?

It is valid. The price is not an absolutely essential term of the contract, and the absence of a price does not necessarily result in the invalidity of the contract. Articles 501 and 501 of the Civil Code have established correction rules for unclear price agreements, indicating that the legislation allows the price to be determined through supplementation, transaction practices, or statutory standards when it is lacking. In judicial practice, as long as the parties have the genuine intention to enter into a contract and the subject matter is determined, the court will not usually determine the contract as invalid solely because of the price being blank. Instead, the court will determine the amount payable in accordance with the correction rules. Of course, in extreme cases where the price is completely unverifiable and there is no reference point, it may affect the actual performance of the contract. Therefore, when signing the contract, it is still necessary to specify the price as much as possible, or at least specify the pricing method and basis.

Q2: Is the price determined based on the market price or other terms of the contract? Who has the final say in this matter?

The order of priority in determining the price is determined by law, not by whoever claims it. According to Articles 501 and 502 of the Civil Code, the order of priority in determining the price is as follows: First, the parties may supplement the agreement; Second, the price shall be determined in accordance with the relevant provisions of the contract or the transaction practices; Third, if the price still cannot be determined, it shall be determined according to the market price (or government-set price, guidance price) at the place of performance of the contract at the time of its conclusion. Therefore, if the price can be inferred from other clauses in the contract, quotation lists in annexes, or correspondence between the parties, or if a stable pricing habit has been formed in long-term transactions between the parties, it should be determined based on these factors first, rather than directly jumping to the "market price". The party claiming the market price needs to prove that the first two steps cannot be applied and provide evidence of the specific price level at the place of performance of the contract at the time of its conclusion. Otherwise, they may bear unfavorable consequences.

Q3: The contract states that "the payment shall be settled at market price". Is this a clear agreement?

This is typically regarded as an "ambiguous agreement" rather than an "explicit agreement". This is because the "market price" itself requires definition: which market, what channels provide quotes, what date is used as the reference, and whether taxes and shipping costs are included are all unspecified, which still lacks specific standards. In this case, according to Article 511 of the Civil Code, the market price at the place of performance at the time of contract conclusion shall be applied; if the parties can subsequently supplement the agreement to clarify the market price criteria, the supplementary agreement shall prevail. To reduce disputes, it is recommended to directly specify the source of the reference price in the contract (such as quotes from an authoritative platform or guidance prices from industry associations), the time of price collection and adjustment mechanisms, and to stipulate dispute verification procedures, so that the "market price" can be transformed from a vague expression into an actionable clause, avoiding repeated negotiations during performance.

Q4: If the two parties cannot agree on the price, can they directly terminate the contract?

It is not appropriate to arbitrarily terminate the contract just because the price is unclear. An unclear price agreement constitutes a "rectifiable" defect. The law provides supplementary agreements, transactional practices, and statutory market prices as remedial channels, which do not directly lead to the failure of the contract's purpose. Only when it is still impossible to reach an agreement after rectification, and the lack of a price renders the contract fundamentally unenforceable, or when it meets the statutory termination circumstances of Article 563 of the Civil Code (such as force majeure or fundamental breach of contract), can termination be considered. In practice, if a party maliciously terminates the contract due to a price dispute, it may instead constitute a breach of contract and bear liability for compensation. The correct approach is to first proceed with rectification in accordance with Articles 501 and 501 and maintain negotiation records. If there is no possibility of performance, then handle it in accordance with statutory channels to avoid assuming the risk of improper termination.

Q5: Even if we can't reach an agreement on the supplementary agreement, what price will we ultimately pay in the end?

The price shall be determined in accordance with statutory standards. When the three methods of determining the price—supplementary agreements, relevant contract clauses, and transaction practices—are all exhausted and the price still cannot be identified, according to Article 511 of the Civil Code, the price shall be paid at the market price of the "place of performance at the time of contract conclusion". If the government pricing or government guidance prices should be implemented in accordance with laws and administrative regulations, the price shall be paid in accordance with the provisions. Here, the "market price" needs to be determined based on the time of contract conclusion and the place of performance, rather than the market price at the time of litigation. Therefore, if a low-priced contract from earlier years is corrected according to the current market price, the difference may be significant. It is recommended that the parties collect price evidence at the time of contract conclusion as early as possible (such as contemporaneous similar transaction documents and industry quotes) when negotiations fail, and apply for an appraisal if necessary, to avoid passively accepting a price that deviates from the actual transaction background.

The above content is based on the compilation of judicial practices in the Beijing area. The facts of individual cases and the jurisdiction of the court may affect the conclusions. Welcome to consult Henglu Law Firm for specific cases.

If you are facing similar problems, it is recommended that you consult a professional lawyer as soon as possible with the evidence materials, so as to avoid missing the statutory time limit. →Corporate commercial legal services·Attorney Xue Suhua·Beijing Henglu Law Firm