Smart Study Co., LTD v. Shenzhenshixindajixieyouxiangongsi

Judge: Richard Sullivan
Opinion Date: December 18, 2025

A South Korean entertainment company that owns trademarks for the popular “Baby Shark” song and related products brought a lawsuit in the United States District Court for the Southern District of New York against dozens of China-based businesses. The company alleged these businesses manufactured or sold counterfeit Baby Shark merchandise, violating trademark, copyright, and unfair competition laws. Seeking to stop the alleged counterfeiting, the company obtained temporary and preliminary injunctions and moved to serve the defendants by email, arguing that this method was appropriate under Federal Rule of Civil Procedure 4(f)(3).

After the plaintiff served process by email, most defendants did not respond, leading to default judgments against many of them. However, two defendants appeared and challenged the court’s jurisdiction, arguing that service by email violated the Hague Service Convention, to which both the United States and China are parties. The district court agreed, finding that the Convention did not permit service by email on parties in China, and dismissed the claims against these defendants without prejudice for improper service. The plaintiff appealed to the United States Court of Appeals for the Second Circuit.

The United States Court of Appeals for the Second Circuit affirmed the district court’s decision. The appellate court held that the Hague Service Convention does not allow email service on defendants located in China, as China has expressly objected to alternative methods such as those in Article 10 of the Convention. The court further held that neither Federal Rule of Civil Procedure 4(f)(2) nor any purported emergency exception permitted email service in these circumstances. The court also upheld the denial of a default judgment, finding no abuse of discretion. Accordingly, the dismissal of the claims against the two China-based defendants for lack of proper service was affirmed. View “Smart Study Co., LTD v. Shenzhenshixindajixieyouxiangongsi” on Justia Law