Can a foreign company sue a former Chinese employee for trade secret theft?

Yes, a foreign company can absolutely sue a former Chinese employee for trade secret theft in China. Chinese courts accept cases brought by foreign entities, and the legal framework under the Anti-Unfair Competition Law (AUCL) does not discriminate based on the nationality of the plaintiff. However, foreign companies face unique procedural and evidentiary challenges that make these cases more complex than domestic trade secret litigation. This FAQ provides a comprehensive overview of the legal pathways, procedural requirements, and practical strategies for foreign companies pursuing trade secret claims against former employees in China.

Legal Standing of Foreign Companies

Article 9 of the AUCL prohibits all acts of trade secret infringement, and the law applies equally to Chinese and foreign entities. Foreign companies have the same legal standing as domestic companies to:

• File civil lawsuits in Chinese courts
• Seek preliminary injunctions
• Request evidence preservation orders
• Claim damages for misappropriation
• File criminal complaints with public security authorities

China’s WTO commitments and its obligations under the TRIPS Agreement (Trade-Related Aspects of Intellectual Property Rights) require non-discriminatory treatment of foreign intellectual property owners. In practice, Chinese courts have handled numerous trade secret cases brought by multinational corporations including Microsoft, Huawei (foreign-owned entities), BASF, and various Fortune 500 companies.

What Must the Foreign Company Prove?

To succeed in a trade secret lawsuit against a former employee, the foreign company must prove four elements:

1. Existence of a legally protectable trade secret — The information must satisfy the three-part test under the AUCL (secrecy, commercial value, reasonable protection measures)
2. Ownership of the trade secret — The company must demonstrate it is the lawful rights holder
3. Misappropriation by the former employee — Evidence that the employee acquired, disclosed, or used the trade secret without authorization
4. Damages — Actual or potential economic harm caused by the misappropriation

Procedural Pathways

1. Civil Litigation

The most common route. Foreign companies file a civil lawsuit in the competent Chinese court — typically the Intermediate People’s Court in the city where the defendant resides or where the infringement occurred. The process involves:

• Filing the complaint with supporting evidence
• Court review and acceptance (立案, lì’àn) — the court generally decides within 7 days
• Evidence exchange and preliminary hearings
• Trial (usually 1-2 hearings)
• Judgment

2. Criminal Complaints

Trade secret theft with significant economic consequences can constitute a crime under Article 219 of China’s Criminal Law. Foreign companies can file a criminal complaint with the local Public Security Bureau (PSB). If the PSB accepts the case, it will conduct a criminal investigation, which can include searches, seizures, and arrests. Criminal conviction carries penalties of up to 10 years’ imprisonment for serious cases.

Advantage: The state bears the cost of investigation and evidence collection. Disadvantage: The PSB may be reluctant to accept cases where the trade secret definition is ambiguous or where the evidence is weak.

3. Labor Arbitration

If the former employee signed a confidentiality agreement as part of their employment contract, the foreign company may pursue remedies through labor arbitration. However, labor arbitration is generally limited to contractual remedies (e.g., damages for breach of contract) and cannot provide injunctive relief or criminal penalties.

Key Challenges for Foreign Companies

Evidence Collection

Chinese civil procedure follows the principle of “who asserts must prove.” The burden of proof falls heavily on the plaintiff. Foreign companies often struggle with:

• Lack of direct evidence — Trade secret theft rarely leaves a smoking gun. Companies must rely on circumstantial evidence such as unusual access patterns, timing of the employee’s departure, and similarities between the company’s proprietary information and the competitor’s products.
• Digital forensics across borders — Evidence may exist on servers in multiple jurisdictions, complicating collection and authentication processes.
• Language barriers — All evidence submitted to Chinese courts must be in Chinese or accompanied by certified Chinese translations, and foreign documents may require notarization and apostille.

Proving Reasonable Protection Measures

As discussed in FAQ-009, Chinese courts require documented evidence of reasonable protection measures. For foreign companies, this often means proving that China-specific measures were in place — not just global corporate policies. A common pitfall is having robust confidentiality policies in the home country but minimal or inconsistent implementation in the Chinese subsidiary.

Jurisdictional Issues

If the former employee has left China or if the trade secret was stored on servers outside China, jurisdictional questions may arise. Chinese courts generally assert jurisdiction if:

• The defendant resides in China
• The infringing act occurred in China
• The consequences of the infringement are felt in China

Enforcement of Judgments

Even after winning a judgment, enforcing it against a former employee who has dissipated assets or left China can be difficult. Chinese courts have enforcement mechanisms (asset freezing, travel bans, blacklisting), but these require the defendant to have identifiable assets or presence in China.

Strategic Considerations Before Filing

1. Act quickly. The urgency is twofold: (a) to prevent further dissemination of the trade secret, and (b) Chinese courts view prompt action as evidence that the information was genuinely valuable and protected.
2. Preserve evidence immediately. Before the employee resigns or gives notice, secure forensic copies of their computer, email accounts, and access logs. After the employee leaves, their devices may be wiped or returned.
3. Consider a cease-and-desist letter first. In some cases, a well-drafted legal letter to the former employee and their new employer can achieve resolution without litigation, particularly if the new employer is a legitimate company that does not want exposure to joint liability.
4. Evaluate the cost-benefit analysis. Trade secret litigation in China can cost between RMB 200,000 and RMB 1,000,000 (USD 28,000–140,000) in legal fees, depending on complexity. Assess whether the value of the trade secret justifies the expense.
5. Assess the strength of your protection measures. Before filing, audit your confidentiality agreements, access controls, and security measures. If they were inadequate at the time of the alleged theft, the court may find that the information was not a legally protectable trade secret.
6. Engage Chinese counsel early. Foreign companies should retain experienced Chinese IP litigators who understand local court practices, evidentiary standards, and judicial tendencies in trade secret cases.

Remedies Available

If the foreign company succeeds in its claim, the court may order:

• Cessation of infringement — An order requiring the former employee to stop using or disclosing the trade secret
• Damages — Compensation for actual losses, or the profits gained by the infringer, or statutory damages up to RMB 5 million (under the 2019 AUCL amendment)
• Punitive damages — Up to five times the actual damages for malicious infringement
• Legal costs — Reasonable litigation expenses, including attorney fees
• Destruction of infringing materials — Equipment, files, and products containing the trade secret
• Publication of the judgment — At the infringer’s expense, to clarify the rights holder’s ownership

Protective Measures for Existing Employees

Rather than waiting for a breach, foreign companies should proactively protect themselves:

• Implement a robust China employment contract with clear confidentiality, non-compete, and intellectual property assignment clauses that comply with Chinese labor law
• Conduct exit interviews for departing employees, reminding them in writing of their ongoing confidentiality obligations
• Revoke access immediately upon notice of resignation — do not allow a departing employee continued access to systems containing trade secrets during their notice period
• Maintain access logs and monitor unusual patterns, especially from employees who have submitted resignations
• Consider non-compete agreements (竞业限制, jìngyè xiànzhì) for key employees, though these require the employer to pay monthly compensation during the non-compete period

Conclusion

Foreign companies absolutely can sue former Chinese employees for trade secret theft, and the legal framework in China provides multiple pathways for doing so — civil litigation, criminal complaints, and labor arbitration. However, success depends heavily on pre-existing protection measures, the quality of evidence available, and the speed of the company’s response. By implementing China-specific confidentiality protocols, maintaining meticulous records, and engaging experienced local counsel at the earliest sign of a breach, foreign companies can effectively protect their trade secrets and hold former employees accountable under Chinese law.

Last updated: July 2026. This article provides general guidance and does not constitute legal advice. Foreign businesses should consult with qualified Chinese legal counsel for case-specific recommendations.

Official Sources

• China National Intellectual Property Administration: Trademark Law
• China National Intellectual Property Administration: official service portal
• World Intellectual Property Organization: China legal and treaty resources