Is CISG Automatically Applicable in China? What Foreign Buyers Must Know

Foreign buyers purchasing goods from Chinese suppliers frequently assume that their contract is governed by "Chinese law" — meaning PRC domestic contract law under the Civil Code. In many cases, this assumption is wrong. The United Nations Convention on Contracts for the International Sale of Goods (CISG) applies automatically to most international sale of goods contracts involving Chinese parties, without the parties needing to choose it, mention it, or even know it exists. Understanding when CISG applies — and when it does not — is essential for any foreign company buying from or selling to China.

The Automatic Application Rule: Article 1(1)(a)

CISG Article 1(1)(a) provides that the Convention applies to contracts for the sale of goods between parties whose places of business are in different Contracting States. China ratified the CISG in 1986, with the Convention taking effect on January 1, 1988. As of 2026, 97 states are parties to the CISG. This means that when a buyer in the United States, Germany, France, Australia, Japan, South Korea, or any other Contracting State purchases goods from a seller in China, the CISG applies automatically — regardless of what law the contract says governs the agreement, unless the parties have explicitly excluded the CISG.

This automatic application catches many foreign buyers off guard. A contract that specifies "This agreement shall be governed by the laws of the People's Republic of China" does not exclude the CISG. Because the CISG is part of Chinese law (as a treaty that China has ratified), a choice of PRC law as the governing law includes the CISG. To exclude the CISG, the contract must contain language like "This agreement shall be governed by the domestic laws of the People's Republic of China, excluding the United Nations Convention on Contracts for the International Sale of Goods (CISG)."

China's Reservation on Article 1(1)(b)

When China ratified the CISG, it made a reservation under Article 95, declaring that it would not be bound by Article 1(1)(b). Article 1(1)(b) extends the CISG's application to cases where private international law rules lead to the application of the law of a Contracting State — even if one party's place of business is in a non-Contracting State. Because of China's reservation, the CISG only applies in China under Article 1(1)(a) — that is, when both parties have their places of business in different Contracting States.

The practical consequence is straightforward. If a buyer in a CISG Contracting State (say, Germany) buys from a Chinese seller, the CISG applies automatically under Article 1(1)(a). But if a buyer in a non-Contracting State (say, the United Kingdom, which has not ratified the CISG) buys from a Chinese seller, the CISG does not apply in China — even if a conflict of laws analysis would otherwise point to Chinese law. The transaction would be governed by PRC domestic contract law under the Civil Code.

This distinction matters because the CISG and PRC domestic law differ on several key points, and the applicable regime affects the buyer's rights and obligations in concrete ways.

Key Differences Between CISG and PRC Domestic Law

Under CISG Article 39, the buyer must give notice of non-conformity within a reasonable time after discovering or ought to have discovered the defect, with an absolute cutoff of two years from the date the goods were handed over (Article 39(2)). Under PRC Civil Code Article 621, the buyer's notice period is a "reasonable period" after discovering or ought to have discovered the defect, but the statutory quality warranty period is two years from the date of delivery (or as specified in the contract). The PRC Supreme People's Court has interpreted "reasonable period" to mean within the warranty period, but specific interpretations vary.

Under CISG Article 25, the buyer can avoid (cancel) the contract only if the seller's breach is "fundamental" — meaning the breach substantially deprives the buyer of what it was entitled to expect under the contract. PRC Civil Code Article 563 provides broader termination rights, allowing the buyer to terminate when the purpose of the contract cannot be achieved due to the other party's breach, without requiring the breach to be "fundamental" in the CISG sense.

Under CISG Article 74, damages are measured as the loss suffered plus lost profits, limited to losses that were foreseeable at the time of contracting. PRC Civil Code Article 584 follows a similar formula but adds that the total damages "shall not exceed the loss that was foreseeable or should have been foreseen at the time of contracting as a possible consequence of the breach" — language that Chinese courts have sometimes interpreted to cap damages more narrowly than CISG tribunals would.

Excluding or Opting Into the CISG

Under CISG Article 6, the parties can exclude the Convention or derogate from or vary the effect of any of its provisions. This freedom gives the parties control over the governing law, but it must be exercised deliberately. Silent contracts — those that simply specify "PRC law" or "Chinese law" without addressing the CISG — result in the CISG applying automatically when both parties are in Contracting States.

Whether to exclude the CISG is a strategic decision, not a default one. For foreign buyers, the CISG may be preferable because it provides a neutral, internationally recognized framework that both parties' lawyers can research and advise on. PRC domestic law, by contrast, requires expertise in Chinese legal interpretation and familiarity with Supreme People's Court judicial interpretations that are not always available in English. For sellers, PRC domestic law may be preferable because Chinese courts and arbitrators are more familiar with it, and the damages cap may be more favorable.

The decision should be made at the contract drafting stage — not discovered during a dispute. Licensed PRC attorneys conducting bilingual contract review will assess whether the CISG applies, whether it should be excluded or retained, and how the choice affects the buyer's rights on inspection, notice, termination, and damages. The review report flags this analysis with a risk classification so the buyer can make an informed decision before signing.

If you are buying goods from China and want to understand whether the CISG applies to your transaction, get your contract reviewed by licensed PRC attorneys with practical CISG and CIETAC experience.