Japan and South Korea join hands with China to tackle impact of US tariffs

The. Chinese state media said that China, Japan, and South Korea will jointly respond to U.S. tariffs, a move signaling a rare alignment among the three nations amid escalating trade tensions.

This development follows a March 30, 2025, economic dialogue in Seoul—the first in five years—where trade ministers from the three countries agreed to promote regional trade and cooperate on a trilateral free-trade agreement, as reported by Reuters.

The backdrop is U.S. President Donald Trump’s recent tariff policies, including a 25% tariff on cars and auto parts announced the previous week, which heavily impacts Asian automakers—South Korea and Japan are the second- and third-largest vehicle exporters to the U.S., per S&P data.

Historically, China, Japan, and South Korea have complex relations, marked by territorial disputes and unresolved historical grievances, such as Japan’s wartime actions, making their cooperation against U.S. tariffs a significant geopolitical shift.

The three nations are part of the Regional Comprehensive Economic Partnership (RCEP), a 2022 trade framework of 15 Asia-Pacific countries aimed at lowering trade barriers, which they now seek to strengthen as a counter to U.S. policies.

China’s role is complicated by its own trade disputes with Japan, including a ban on Japanese seafood imports since 2023 over Fukushima wastewater releases, though recent talks in Tokyo on March 24, 2025, showed China committing to ease these restrictions, per Reuters.

South Korea, despite criticizing the Fukushima wastewater release, has accepted the IAEA’s safety report on the plan, while also releasing similar levels of tritium from its own nuclear plants, highlighting regional inconsistencies in environmental policies, as noted in a 2023 Guardian article.

The U.S. tariffs are part of Trump’s broader trade strategy, which also includes potential bailouts for American farmers affected by these trade wars, a move criticized as contradictory to the goal of balancing the budget through tariffs, as pointed out in trending X posts.

This alignment could accelerate efforts toward a China-Japan-South Korea free-trade agreement, stalled since 2012, potentially reshaping East Asian economic dynamics and challenging U.S. influence in the region.

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