Temu v. SHEIN: A Full Analysis of the Intellectual Property War Between Two Cross-Border Giants

Introduction: What Is the "Safe Harbor"?

Before turning to the legal war between Temu and SHEIN, it is worth understanding the concept that runs through it: the platform safe harbor.

Put simply, the safe harbor is an intermediary's shield from liability.

Under the DMCA, if a platform merely provides a venue for third-party sellers to list goods, and is itself unaware of a seller's infringement, the platform bears no legal liability for that infringement.

But the safe harbor is not unlimited. Over the years courts have made increasingly clear that once a platform exercises substantive control over a seller's goods, pricing, fulfillment, and marketing, the shield fails — because at that point the platform is no longer a mere intermediary but resembles a vertically integrated retailer deeply involved in selling the goods.

That is the core reason Temu has faced successive legal challenges over the past two years. Multiple courts, in different cases, have found that the degree of control Temu exercises over platform goods exceeds what the traditional safe harbor protects.

I. Background

The legal war between Temu (operated by WhaleCo Inc.) and SHEIN (relevant entity: Roadget Business Pte. Ltd.) is among the most representative commercial disputes in cross-border e-commerce in recent years. Both are built on Chinese supply chains and entered European and U.S. markets on aggressive pricing, with heavily overlapping businesses. Their dispute reveals not only fierce competition for market share but has left a lasting mark on intellectual property, supply chain control, and the boundaries of e-commerce compliance.

Temu launched in North America in September 2022 and rose rapidly on gamified shopping and aggressive pricing, topping the U.S. iOS free shopping app chart within a month. SHEIN had spent more than a decade in cross-border fast fashion, building brand barriers in more than 150 countries on a small-batch, fast-response model. Full-spectrum competition over supply chain resources, social marketing traffic, and pricing room ultimately became a protracted war of mutual claims.

II. Temu Strikes First: Alleging DMCA Abuse and Exclusivity Lock-Up

Temu moved first. On December 13, 2023, it sued Shein Technology LLC and Roadget Business Pte. Ltd. in the U.S. District Court for the District of Columbia for copyright infringement (17 U.S.C. § 101), with both sides demanding a jury. The case was assigned to Judge Timothy J. Kelly. Temu's complaint characterized SHEIN's conduct as a systematic suppression campaign across four fronts.

1. Abuse of DMCA takedown notices

Temu alleged SHEIN had sent DMCA § 512 takedown notices on a mass scale — reportedly more than 33,000 — many of them false or defective. The complaint alleged SHEIN claimed to act on behalf of suppliers while knowing many of them did not own the copyrights asserted.

A representative example: SHEIN issued a takedown notice against a Temu seller who was in fact the true copyright owner of the images at issue, and only began verifying ownership after that seller sued. In January 2024, Temu moved for a preliminary injunction barring SHEIN from continuing to send such notices.

2. Coercing suppliers into exclusivity agreements

Temu alleged SHEIN used market power to force Chinese apparel manufacturers into exclusivity agreements preventing them from also supplying Temu — conduct it characterized as violating U.S. antitrust law and as competitive foreclosure of Temu's growth.

3. Copying Temu's trade dress

Temu asserted that its gamified shopping experience — built around a vivid orange theme and arcade-style graphics — had acquired distinctive trade dress and substantial recognition through hundreds of millions of dollars in advertising, and that SHEIN's imitation infringed it.

4. False statements to the U.S. Copyright Office

Temu further alleged SHEIN had made fraudulent representations in filings with the Copyright Office.

SHEIN's principal defenses were:

• On the DMCA notices, that it held a good-faith belief when sending takedown notices, satisfying § 512(f), and that the individual errors Temu identified did not amount to systematic abuse. SHEIN also asked the court to take judicial notice of certain materials, including a USTR report on Temu's background; the court declined as irrelevant to the facts at issue on a motion to dismiss.
• On jurisdiction over Roadget, that as a Singapore-registered foreign entity it lacked sufficient contacts with the United States to support personal jurisdiction.
• On trade dress, questioning whether Temu's arcade-style design had acquired sufficient recognition and non-functionality, and arguing the claim was premature at the pleading stage.

After roughly a year of evidentiary and procedural preparation, the court issued a memorandum opinion and order on February 9, 2025, denying Temu's preliminary injunction motion. Applying the four-factor test from Winter v. Natural Resources Defense Council, Inc., the court found the harm Temu asserted — an approximately 30% decline in the rate at which new sellers joined the platform — economic in nature and therefore not the irreparable harm a preliminary injunction requires. The court also found Temu's attribution of that decline to SHEIN's false DMCA notices speculative on the evidence.

III. SHEIN's Counter-Suit: Platform Control and Influencer Marketing

On August 19, 2024, Roadget Business Pte. Ltd. sued PDD Holdings Inc., WhaleCo Inc., and Does 1–20 in the same court, filing a related case notice linking it to the Temu action. It too was assigned to Judge Kelly.

SHEIN's narrative turned on a central contention: that Temu is not the open marketplace it claims to be but a vertically integrated operator exercising comprehensive control over seller activity, whose rapid U.S. growth was built on systematic infringement, data theft, and misleading marketing.

1. Trade secret misappropriation: Best Seller Data

SHEIN asserted that its core competitive advantage lies in confidential Best Seller Data covering best-selling style rankings, internal pricing, product images, and links.

SHEIN alleged Temu obtained that data and distributed it to suppliers through channels including WeChat, instructing them to copy SHEIN's best sellers and list them on Temu. SHEIN further alleged that employees of a PDD affiliate carried out data theft within China.

2. Multi-layer copyright infringement

SHEIN advanced four theories of copyright liability: direct, contributory, vicarious, and inducement.

Its theory: that Temu supplies sellers with image editing tools or services facilitating adaptation of SHEIN's copyrighted images; that Temu failed to address SHEIN's infringement notices promptly and fully; and that its content review team is under-resourced or over-reliant on automated systems unable to identify infringing content.

3. Trademark infringement: keyword advertising and impersonation accounts

SHEIN alleged Temu used SHEIN's marks or close variants (such as "She/in") in paid advertising on Google and elsewhere, leading consumers to believe Temu sold genuine SHEIN goods. It further alleged Temu operated impersonation accounts on X (formerly Twitter), using handles resembling @SHEIN_USA, to promote Temu's site and drive app downloads.

4. False advertising: influencer scripts

SHEIN alleged Temu distributed specific guidelines to influencers expressly requiring them to state that Temu products were cheaper and of better quality than SHEIN's, and that the resulting posts followed those instructions exactly.

SHEIN contended this was false advertising under § 43(a) of the Lanham Act, and that the platform's direction of influencer content made the platform itself liable for contributory false advertising.

Temu's defenses were:

1. Denying substantive control and asserting platform neutrality — that as a third-party marketplace it bears no direct liability for sellers' product content, design provenance, or IP compliance, and that the comprehensive control SHEIN described was factually overstated and insufficient to support contributory or vicarious theories.
2. PDD Holdings' jurisdictional challenge — that PDD Holdings, a Cayman-registered foreign holding company, conducts no business directly; that Temu is operated by WhaleCo Inc. rather than PDD Holdings; and that SHEIN had neither established personal jurisdiction over PDD Holdings nor explained what new facts further discovery would reveal.
3. Trademark dilution fame threshold — that SHEIN had not adequately pleaded that its marks meet the high fame threshold the Lanham Act's dilution provision requires, and that social media follower counts and registrations alone do not automatically satisfy it.
4. Denying commerciality and deception in the advertising claims — arguing procedurally that SHEIN had not adequately pleaded the specific content and falsity of the statements, or whether contributory false advertising is a cognizable theory in that circuit.

On January 7, 2026, the court ruled on Temu's motion to dismiss. It accepted PDD Holdings' jurisdictional argument, finding that as a foreign holding company it conducts no business directly, and that SHEIN had failed to plead facts sufficient to attribute WhaleCo's U.S. contacts to PDD Holdings or to explain what specific new facts further discovery would yield. PDD Holdings was dismissed from the case.

On SHEIN's motion of November 20, 2025, the court formally ordered the two cases consolidated on April 13, 2026. The litigation has become a full-spectrum competitive war between two ultra-fast-fashion giants.

IV. The Safe Harbor Under Pressure: Temu as a Vertically Integrated Platform

In April 2026, while the D.C. litigation remained contested, two cases proceeding simultaneously in the Central District of California opened a decisive breach in Temu's safe harbor defense from another direction.

(1) Gas Drawls, LLC v. Whaleco, Inc.

Gas Drawls, LLC is the estate company of the late rapper MF Doom (Daniel Dumile, d. 2020), holding the MF Doom marks — the "MF DOOM" word mark, graffiti-style designs, the signature mask design, and the "GAS DRAWLS" mark.

On August 11, 2025, Gas Drawls sued WhaleCo Inc. in the Central District of California, alleging that counterfeit MF Doom merchandise was being sold on Temu in volume, constituting trademark infringement and unfair competition.

Temu's response was consistent with its standard position: passive platform immunity — the goods were listed by third-party sellers, Temu had no knowledge of the specific infringement, and the screenshots in the complaint could not show Temu itself manufactured or sold them.

The court granted dismissal on the ground that the plaintiff had pleaded no facts supporting an inference of joint ownership or control over the infringing products, and no facts showing Temu's role was more than that of a transaction intermediary and fulfiller — but allowed Gas Drawls to replead.

Gas Drawls then substantially strengthened its second amended complaint with specific factual allegations about Temu's platform control mechanisms, describing in detail how Temu intervenes in pricing, logistics management, warehousing, and seller account management.

The court allowed the amended trademark claims to proceed, finding that the amended complaint plausibly alleged that Temu took ownership of goods or exercised sufficient control over the accused products to bear liability as a seller.

(2) Twenty One Pilots, LLC v. Whaleco, Inc.

On September 9, 2025, the band Twenty One Pilots sued WhaleCo Inc. in the Central District of California, alleging infringement of several marks including the "TWENTY ONE PILOTS" word mark, a logo composed of straight and diagonal lines, and another band mark.

The complaint was filed by the same counsel who had represented the MF Doom estate the previous month. The two cases advance many similar arguments, with the newer complaint describing Temu as among the most unethical companies in the global market today.

Twenty One Pilots pleaded several independent causes of action to forestall another motion to dismiss. The amended complaint asserts that Temu's control over its own marketplace far exceeds what it would have the court believe, and that it operates in effect as a direct seller. The claims include:

• trademark infringement
• unfair competition
• violation of the right of publicity
• statutory damages of up to $2 million per counterfeit mark per type of goods

In both cases the courts rejected Temu's motions to dismiss premised on passive intermediary status. In their amended complaints, plaintiffs' counsel characterized Temu as a vertically integrated manufacturer and retailer rather than a mere marketplace.

That reasoning aligns closely with the core logic of the Temu–SHEIN litigation: where a platform exercises substantive control over listings, fulfillment, pricing, and supplier conduct, the traditional platform safe harbor defense is materially narrowed.

SHEIN adopted the same framework expressly in its complaint, contending that Temu controls every aspect of its sellers' activity and is not a genuinely open marketplace.

V. Compliance Takeaways

Temu's simultaneous safe-harbor difficulties across multiple fronts are no accident. They reflect U.S. courts, confronted with a new large-scale cross-border e-commerce model, working through a fundamental question across a series of decisions: when a platform's control over goods extends into pricing, logistics, assortment, and supply chain, can it still invoke the safe harbor?

The Temu–SHEIN cases remain in discovery, but whatever the outcome, the litigation has sent a clear signal: in the ultra-fast-fashion cross-border arena, competition has moved beyond price and traffic into a comprehensive contest over intellectual property, data assets, and marketing compliance. The platform's growth logic is itself becoming the object of legal scrutiny.

For platform operators, use of the DMCA notice mechanism must rest on adequate verification of rights. Sending takedown notices at scale without verifying ownership may constitute DMCA abuse and invite counterclaims.

A platform that intervenes deeply in sellers' goods, pricing, image assets, and marketing will struggle to maintain the legal characterization of a passive intermediary, and its safe harbor defense narrows accordingly.

For brand owners, these cases offer a more systematic enforcement narrative: rather than listing individual infringing listings, a complaint can reconstruct the full causal chain from platform rules to infringing outcome, showing how the platform's design systematically participates in, induces, or amplifies infringement. That narrative materially improves the viability of a complaint at the pleading stage and shapes later discovery strategy decisively.

The scope of trade secret protection is also extended here: operational data such as best-seller rankings, internal pricing, and supply chain mapping may constitute protectable trade secrets where confidentiality and economic value are established.

This article addresses general legal questions only and does not constitute legal advice on any specific matter.