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More investors join legal challenge against South Korea over Coupang data leak handling

By Thomson Reuters Feb 11, 2026 | 7:57 PM

Feb 11 (Reuters) – Three more investors have joined Greenoaks and Altimeter in their legal challenge against the government of South Korea, alleging discriminatory treatment of e-commerce firm Coupang and other ​U.S. companies.

Abrams Capital, Durable Capital Partners, and Foxhaven have ‌notified South Korea to pursue arbitration by adopting the previous suit filed by the other two investors, according to a statement published on Wednesday.

The legal claims accuse Seoul of mounting a campaign against Coupang following a consumer data breach that ‌has ​caused billions of dollars in losses to investors.

Coupang ⁠reported in November that ⁠personal data for some 33 million customers in South Korea were compromised, leading to far-reaching backlash from the public and lawmakers, lawsuits and international disputes.

The new investors have also submitted letters in support ​of petitioning the U.S. government to investigate South Korea’s actions.

“Over the past several weeks, it has become clear that both U.S. ⁠policymakers and U.S. investors recognize the importance ⁠of standing up for American companies in the face ​of discrimination by foreign countries,” said Neil Mehta, founder and managing Partner ​of Greenoaks.

Coupang, founded by Korean-American Harvard graduate Bom Kim ‌in 2010, is the country’s most popular e-commerce platform. It has overtaken family-owned conglomerates like Shinsegae in South Korean e-commerce and is expanding into food delivery, streaming and fintech.

In a statement, South Korea’s Justice Ministry ⁠said the government “will make every effort to respond in a systematic and professional manner to the additional notices of intent to arbitrate filed by Foxhaven ⁠and others, led ‌by the International Investment Dispute Response Team.”

The Coupang ⁠breach has also played a part in escalating trade ​frictions ‌between the U.S. and South Korea, with U.S. ​President Donald ⁠Trump threatening to raise tariffs on the country to 25%.

The House Judiciary Committee last week issued a subpoena to Coupang as a part of its ongoing probe into alleged discrimination against U.S. companies.

(Reporting by Zaheer Kachwala in Bengaluru; Additional reporting by Kyu-seok Shim in Seoul; Editing by Arun Koyyur ​and Ed Davies)