Recently I have seen firsthand the challenges that arise when international supply agreements lack careful legal planning. Many overseas brands—especially CEOs and in-house legal teams familiar with the predictability of Western legal systems—often approach Chinese manufacturing with a misplaced sense of security. They may rely on standard Western purchase orders, informal WeChat communications, or trust in the factory’s self-regulation. However, when issues arise, enforcing rights across borders can be extremely difficult, with a high burden of proof and fundamentally different legal procedures.
The Phantom of Quality: Establishing Product Defects Across Borders
One of the most significant risks a brand can face is a product quality failure. When a product malfunctions in consumer markets such as Europe or North America, the brand’s reputation can suffer immediate and serious damage. The natural response is often to seek accountability from the Chinese manufacturer. However, if the manufacturer denies any defect, proving the issue becomes a complex legal challenge. Under Chinese civil procedure, the principle of “he who asserts must prove” applies. Demonstrating that a defect originated at the factory, rather than during shipping or storage, presents a substantial evidentiary obstacle.
Allow me to share a relevant example from my experience that highlights this challenge. A Vietnamese client, Mr. Hu, ordered a large shipment of LED displays from a Chinese supplier. The contract specifically required the use of “Brand A” LED beads, a high-quality component essential for the displays’ performance and durability. Upon arrival in Vietnam, the products were delivered to the end customer but quickly failed and became unusable. When confronted, the Chinese supplier blamed improper storage and high humidity in Vietnam, denying any manufacturing fault. They promised to send technicians for inspection and repair but repeatedly delayed for months.
Facing a total loss, Mr. Hu suspected the real issue was the use of inferior components. He arranged for a sample of the LED beads to be sent directly to Brand A’s headquarters in China for verification. The analysis confirmed his suspicion: the beads were counterfeit and not genuine Brand A products. Equipped with this evidence, he filed a lawsuit against the supplier in a Chinese court. The court applied the United Nations Convention on Contracts for the International Sale of Goods (CISG), since both China and Vietnam are signatories. Under the CISG, the concept of “avoidance of contract” was applied rather than the domestic Chinese notion of “contract termination.” The court ruled in favor of Mr. Hu, declaring the contract avoided and ordering a full refund.
While this outcome was positive, it serves as a cautionary tale for overseas brands. Mr. Hu was fortunate that the supplier inadvertently admitted to using non-Brand A beads during the case. Had the supplier denied that the tested beads were the ones originally supplied, Mr. Hu would likely have lost, as he did not preserve a sealed sample at the start of the contract. Without a mutually acknowledged baseline sample, the defendant can easily argue that the tested product was swapped after delivery. Additionally, Mr. Hu was awarded no damages for consequential losses such as freight and lost profits. The court reasoned that the contract lacked a liquidated damages clause, did not address attorney’s fees, and that evidence of his additional losses was not properly notarized and legalized by the Chinese embassy in Vietnam, making it inadmissible in court.
This case offers important lessons. For any overseas brand working with OEM or ODM partners, contracts must explicitly require the preservation of sealed baseline samples, signed by both parties and held by a neutral third party or notary. This step significantly limits the supplier’s ability to deny responsibility. Moreover, agreements should clearly specify liquidated damages and the allocation of legal costs. Under Chinese law, attorney fees are generally borne by each party unless otherwise agreed. Equally important is understanding evidence requirements: any documents or reports generated outside China—such as testing results, bills of lading, or invoices—must be notarized and legalized to be accepted by Chinese courts. Without careful attention to these procedural details, even a strong legal case may result in an unsatisfactory financial outcome.
The ODM Paradox: Who Truly Owns the Innovation Behind the Product?
While OEM partnerships carry the risk of component substitution, ODM collaborations pose an even more complex challenge: the potential loss of intellectual property rights. In an ODM setup, the Chinese manufacturer is not just executing tasks—they are the creative force. They design the product, engineer the schematics, and develop the tooling. The foreign brand simply places their logo on the final product and markets it globally. This situation creates a paradox that many Western brands only fully understand when it’s too late.
According to Chinese intellectual property law, the default owner of a patent or design is the inventor or creator. If a factory designs a product, they legally own that design unless there is a clear, written agreement transferring those intellectual property rights. The consequences of this default position can be significant. I have worked with European brands that invested hundreds of thousands of dollars marketing an ODM product worldwide, only to find out that the Chinese factory had secretly filed patents for the product in China and other regions. When the brand tried to shift production to a more cost-effective factory to scale up, the original manufacturer sued for patent infringement, effectively preventing the brand from producing its own flagship product.
Factories often defend their position with a legally valid but commercially aggressive argument: since they funded the research and development, they own the intellectual property, and the foreign brand only holds a non-exclusive license to purchase the finished goods. Without a written IP assignment agreement signed before production begins, the foreign brand is completely dependent on the factory’s goodwill.
To protect themselves, overseas brands must approach ODM agreements not merely as purchase orders but as technology transfer and IP assignment contracts. The agreement should include a robust clause stating that all intellectual property—such as patents, utility models, industrial designs, copyrights, and trade secrets—created during the manufacturing relationship is immediately and irrevocably assigned to the foreign brand upon creation. Additionally, the brand should require the factory to sign any necessary documents to register these rights in the brand’s name. It is crucial not to rely solely on the factory’s promise to handle registrations; instead, take control of patent and design registrations through your own Chinese legal counsel.
The Shadow Economy: Addressing Unauthorized Overruns and the “Ghost Shift”
Even in an ideal OEM partnership where you retain full intellectual property rights and maintain impeccable quality standards, a hidden risk can arise within the factory: unauthorized overruns, commonly referred to as the “ghost shift.” For example, a factory may produce 10,000 units for your brand according to your exact specifications. However, after hours, the same production line might run an additional 3,000 units using your proprietary molds and designs but with lower-quality materials. These unauthorized products often enter the gray market or are sold on global e-commerce platforms, undermining your sales and, more importantly, damaging your brand’s reputation with inferior copies that consumers cannot easily distinguish from authentic items.
Proving unauthorized overruns in Chinese courts is notoriously challenging. Factories often claim that gray market goods were legitimately purchased and resold or deny producing them altogether. The responsibility to provide evidence rests with the brand. To establish trademark infringement or breach of contract, it is necessary to trace gray market products back to the specific factory, which requires advanced investigative techniques. One highly effective approach is the use of covert traceability markers—such as microscopic ultraviolet inks applied to circuit boards or internal chassis, unique serial number algorithms embedded in firmware, or RFID tags concealed within the product housing. Because these markers are invisible and unknown to factory floor managers, they cannot be duplicated during unauthorized production runs. When a suspect product purchased on the open market contains your covert marker, you have a direct and reliable link connecting the counterfeit item to your specific production batch.
In addition to covert markers, strong contractual safeguards are crucial. Manufacturing agreements should include rigorous anti-counterfeiting clauses with predetermined liquidated damages for each unauthorized unit discovered. Under Chinese law, proving and quantifying actual damages for trademark infringement can be difficult, often resulting in minimal statutory damages that fail to deter profitable ghost shifts. By incorporating substantial liquidated damages for unauthorized overruns into contracts, you reduce the need to prove actual losses, making legal action more financially feasible and significantly increasing the risk for the factory, thereby discouraging such illicit activities.
The WeChat Challenge: Navigating Informal Communication as a Legal Consideration
For Western companies operating in China, one of the most notable cultural shifts is the widespread use of WeChat as a primary business communication platform. Unlike the Western preference for formal emails, Chinese suppliers often favor the immediacy of WeChat messages, voice notes, and video calls. While this approach speeds up interactions, it also introduces complex legal challenges. In Western contexts, a clear email trail is typically the preferred form of evidence. In China, although WeChat records are admissible in legal proceedings, their reliability and authenticity are carefully scrutinized.
Many international brands inadvertently negotiate key contract terms—such as price adjustments for defects, delivery schedule changes, or component substitutions—through informal WeChat voice messages or fragmented texts. When disputes arise, converting these scattered WeChat communications into a clear and persuasive legal argument for judges or arbitrators can be extremely difficult. Additionally, verifying the identity of the person behind a WeChat account can be problematic. Factories may argue that the individual who made certain admissions was a junior employee without authority to commit the company, or they might even deny ownership of the account altogether.
To mitigate these risks, it is essential that your manufacturing contract clearly defines what constitutes binding communication. The contract should require that any significant amendments—such as changes to specifications, delivery timelines, or quality approvals—be confirmed through formal emails sent by authorized representatives from both parties. While WeChat remains useful for everyday coordination, any important acknowledgments or concessions should be documented in a formal email with a subject line like “Confirmation of WeChat Agreement dated [X].”
Additionally, including an appendix that lists authorized WeChat accounts and email addresses for the factory’s representatives, and explicitly stating that communications from these accounts are binding, can provide further protection. This straightforward contractual approach helps prevent factories from disavowing statements made by their own employees during legal disputes.
The Jurisdictional Challenge and the Importance of Arbitration
One of the most critical mistakes an international brand can make is accepting the default jurisdiction of a local Chinese court without fully appreciating the inherent biases and practical difficulties involved. Many standard contracts from Chinese manufacturers specify that disputes be resolved in the local People’s Court where the factory is located. From the factory’s standpoint, this is a strategic choice—they are well-versed in the local legal environment, often have established relationships with local officials, and understand that foreign plaintiffs face significant cost and logistical barriers when litigating in a distant Chinese city.
Even if you secure a favorable judgment in your home country against a Chinese manufacturer, enforcing that judgment in China remains highly challenging. Although China has recently joined the Hague Judgments Convention, the practical enforcement of foreign judgments is still largely untested and uncertain. Chinese courts typically hesitate to recognize and enforce foreign judgments unless there is a specific bilateral treaty in place, which is often not the case.
The recommended solution is international commercial arbitration. China is a party to the New York Convention on the Recognition and Enforcement of Foreign Arbitral Awards, meaning that an arbitral award issued in a neutral jurisdiction—such as Singapore, Hong Kong, or London—can be enforced in China far more reliably than a foreign court judgment. Chinese courts have a strong track record of upholding international arbitral awards, provided procedural rules are followed and enforcement does not conflict with Chinese public policy.
When drafting dispute resolution clauses, it is essential to insist on arbitration in a neutral, internationally recognized forum. Avoid ad-hoc arbitration clauses or obscure arbitration bodies, as these can complicate enforcement. Instead, specify a reputable institution such as the Singapore International Arbitration Centre (SIAC) or the Hong Kong International Arbitration Centre (HKIAC), and ensure the arbitration is conducted in English. While manufacturers may resist a foreign venue, Hong Kong often serves as a reasonable compromise, offering a common law framework closely linked to the Chinese legal system and operating under the New York Convention. The slightly higher cost of arbitration is a small price to pay for the confidence that a favorable ruling can lead to the seizure of the factory’s assets if necessary.
Proactive Compliance: From Contract to Customs
Winning a dispute is only a partial victory; preventing disputes altogether is the true strategic goal. For international brands, the best protection lies in a comprehensive, proactive compliance strategy that extends beyond the contract to the operational realities of manufacturing in China.
A critical but often overlooked step is registering your intellectual property with Chinese Customs. The General Administration of Customs of China (GACC) has the authority to seize goods infringing on recorded IP rights at the border. By registering your trademarks and copyrights with the GACC, you empower customs officials to intercept unauthorized or counterfeit shipments before they leave China. Without this registration, customs officers lack the legal basis to detain your products, even if you have strong evidence of counterfeiting. This customs registration acts as an effective checkpoint, stopping unauthorized production at its source.
Additionally, relying solely on factory self-audits is no longer sufficient. International brands must implement rigorous, unannounced third-party inspections. However, the right to conduct these inspections must be clearly established in the manufacturing agreement. The contract should grant the brand and its agents unrestricted access to factory premises, production lines, bills of materials, and quality control records without prior notice. Any refusal to grant access should be considered a material breach, allowing immediate termination of the agreement.
Finally, the financial terms of the relationship should incentivize compliance. Avoid paying 100% of the contract price upfront. A widely used and effective payment structure is a 30/30/40 split: 30% upon signing and tooling initiation, 30% upon approval of pre-production samples, and the remaining 40% only after an independent third-party pre-shipment inspection confirms the goods meet contractual specifications. This final payment serves as leverage, motivating the factory to address any quality issues before shipment rather than leaving you to negotiate repairs after the goods have already been shipped.
The Strategic Value of Local Legal Expertise
Underlying all these considerations is the critical need for specialized local legal counsel. Navigating the Chinese manufacturing environment with a generic Western legal approach is like sailing without a compass. The complexities of the CISG, strict evidentiary requirements for notarization and legalization, nuances of Chinese IP law, and procedural realities of Chinese courts require a legal team fluent in both Western commercial practices and Chinese legal frameworks.
Engaging a Chinese law firm with expertise in cross-border trade and intellectual property is not a cost but an investment in the resilience of your supply chain. Your legal counsel should be involved from the outset—drafting OEM or ODM agreements, negotiating arbitration clauses, and registering your IP. They should act as a strategic partner, conducting due diligence on factories, identifying hidden risks, and designing a legal framework that makes compliance the easiest path for manufacturers and litigation an unattractive option.
In the high-stakes world of international manufacturing, relying on a handshake or a standard purchase order is a vulnerability that competitors can exploit and suppliers may abuse. By understanding the hidden pitfalls of Chinese OEM and ODM manufacturing—such as evidentiary challenges, default IP rules, unauthorized production shifts, informal communication risks, and jurisdictional complexities—you can transform your supply chain from a potential liability into a robust asset. The objective is not just to win disputes when they arise but to build legal and operational defenses so strong that disputes are avoided altogether, allowing your brand to thrive confidently on the global stage.