Seattle: The global headquarters of e-commerce giant Coupang Inc. in Seattle is facing a class-action lawsuit, adding to a wave of complaints already lodged in South Korea over a massive personal data breach that affected more than 30 million customers.

According to Yonhap News Agency, SJKP, the U.S. branch of Daeryun law firm, announced during a press conference Sunday (local time) that it will file the lawsuit seeking punitive damages against Coupang on Monday. An official at Daeryun noted that the law firm plans to pursue litigation simultaneously in both South Korea and the U.S.

On November 29, Coupang disclosed that the personal information of 33.7 million customers-nearly its entire user base-had been compromised. The breach involved sensitive customer details, including names, phone numbers, email addresses, and delivery information.

Coupang's massive data breach is the latest in a series of similar incidents at South Korean companies, including top mobile carrier SK Telecom.