South Korea Platform Law Could Cost US States $525B

A proposed South Korean law targeting large online platforms could cost U.S. states an estimated $525 billion in economic activity over the next decade, according to a new economic model from the Competere Foundation. California alone faces a projected $123 billion hit, with Texas ($48.7 billion), New York ($33.9 billion), and Washington ($27.4 billion) also facing significant losses.

The Online Platform Fairness Act, spearheaded by the Korea Fair Trade Commission (KFTC) and backed by South Korean President Lee Jae-myung, would grant regulators broad new powers to cap service fees, prohibit certain business practices, and police what the government calls “superior bargaining positions” held by major platform operators.

Political Shift Behind the Regulation

South Korea’s political landscape has shifted dramatically in recent years. President Yoon Suk-yeol, a conservative, was impeached in December 2024 after attempting to impose martial law. Lee Jae-myung, who narrowly lost to Yoon in 2022, won the presidency in 2025, giving the Democratic Party full control of both the executive branch and the National Assembly.

More than 50 House lawmakers, led by Rep. Darrell Issa (R-CA) and Rep. Michael Baumgartner (R-WA), sent a letter in April 2026 to ROK Ambassador Kyung-wha Kang condemning what they called “discriminatory” business practices. Issa told Fox News Digital that South Korea’s current trade commission “resembles the worst of Lina Khan’s FTC, not the free market tradition that has helped to bring Seoul and Washington together.”

A ‘Climate of Fear’ for U.S. Firms

A November 2025 report by the National Bureau of Asian Research documented aggressive KFTC enforcement tactics that U.S. firms say have created a “climate of fear.” The report found that the commission routinely launches investigations on minimal evidence, conducts unannounced “dawn raids” on company offices, and threatens employees with criminal prosecution for resisting document requests.

“The KFTC’s moves are creating a climate of fear that discourages U.S. investment into Korea and damages our bilateral relationship,” said Ambassador Robert O’Brien, former National Security Advisor to President Trump, as reported by Breitbart.

The Coupang Case

In early June 2026, South Korea fined Coupang, a U.S. tech company similar to Amazon, roughly $410 million for a data breach — the largest fine the country has ever issued for a similar charge. A Chinese national and former Coupang employee was accused of stealing customer data. The Korean embassy defended the action, with spokesperson Minseong Seo stating the investigation was “proportionate to the nature of the data breach and consistent with those applied to Korean companies in comparable cases.”

China Concerns

Multiple U.S. lawmakers and analysts warn that the regulations disproportionately target American companies while potentially exempting Chinese competitors like ByteDance, Alibaba, and Temu. Former Rep. Chris Stewart (R-UT) warned that “every time Korean regulators make it harder for U.S. innovators like Coupang, Google, or Meta to compete, they create more room for Chinese companies to gain market share and influence.”

Korea’s Balancing Act

Korean officials face a delicate challenge. The proposed law was a campaign pledge of President Lee, positioned as a measure to protect small businesses from dominant platform operators. However, as reported by the Korea JoongAng Daily, U.S. objections have become “the biggest challenge” in trade negotiations.

Trade Minister Yeo Han-koo has called for balance, saying, “We must protect our interests but also remain flexible when it comes to institutional reform, competitiveness and consumer welfare.” Prof. Heo Yoon of Sogang University cautioned that pursuing the law during sensitive tariff negotiations “could unnecessarily provoke the United States.”

What’s Next

The proposed legislation remains pending in South Korea’s National Assembly. The Trump administration has been pressing allies to dismantle non-tariff barriers, and Canada recently dropped its planned digital services tax under similar pressure. Rep. Issa has noted that the U.S. can leverage the KORUS Free Trade Agreement and the presence of approximately 28,000 U.S. troops in South Korea to push back against the regulations.

Shanker Singham, CEO of the Competere Foundation, summarized the stakes: “Korea is already an increasingly unfriendly place for U.S. companies to do business. The looming regulations will make that environment even worse.” The outcome of this dispute will have significant implications for digital trade, the U.S.-Korea alliance, and the broader geopolitical competition with China.