South Korea’s Constitutional Court has unanimously upheld the impeachment of President Yoon Suk Yeol, removing him from office and triggering a 60-day countdown to elect a new head of state.
Why Yoon Was Impeached
Yoon’s dramatic downfall began on December 3, 2024, when he declared martial law in a late-night televised broadcast—marking the first such move in South Korea in over four decades. Citing threats from “North Korean communist forces” and “anti-state elements,” Yoon deployed military forces to parliament to prevent lawmakers from overturning the decree.
The move was widely condemned, and lawmakers quickly voted down the martial law order before filing articles of impeachment. Yoon was officially impeached on December 14, and suspended from office pending the outcome of his trial.
What the Court Said
In a nationally broadcast ruling on April 4, 2025, Acting Chief Justice Moon Hyung-bae announced the court’s unanimous decision:
“The declaration of martial law did not meet the legal threshold for a national crisis.”
The court also ruled that Yoon violated the law by ordering troops to interfere with the democratic process inside parliament.
What Happens Next
- Prime Minister Han Duck-soo has been reinstated as acting president.
- A new presidential election must be held within 60 days to replace Yoon.
- The court’s ruling is final and cannot be appealed.
Political and Market Reactions
The impeachment has sparked both political celebration and market volatility:
- The Democratic Party called the ruling a “people’s victory.”
- Yoon’s conservative People’s Power Party said it “humbly accepts” the court’s decision.
- South Korea’s benchmark Kospi Index fell 1.66%, while the Kosdaq dropped 0.85%.
- The South Korean won strengthened by roughly 1% following the news.
Finance Minister Choo Kyung-ho convened an emergency meeting with central bank and financial regulators to assess the ruling’s impact on the economy.
Election Outlook: Lee Jae-myung in the Spotlight
The ruling clears the way for a special presidential election that must be held by early June. Investors and analysts are closely watching opposition leader Lee Jae-myung, who is widely seen as the frontrunner.
“This ruling provides greater clarity for South Korea’s governance,” said Homin Lee, a senior macro strategist at Lombard Odier. However, Lee warned of continued market jitters, fueled in part by U.S. trade tensions and Trump’s reciprocal tariffs.
Despite the uncertainty, Lee said South Korea’s relatively low asset valuations and return to constitutional order may help stabilize investor sentiment over time.
Key Takeaways
- President Yoon has been officially removed from office after South Korea’s top court upheld his impeachment.
- His use of martial law was found to be illegal and unconstitutional.
- A new election will take place within 60 days, with opposition parties poised to gain ground.
- Markets reacted negatively, but some analysts see long-term stability returning.
Stay Informed
Follow updates from South Korea’s National Election Commission and global news outlets for real-time election developments. For international market reaction, monitor data from the Kospi, Kosdaq, and foreign exchange indexes as political transitions unfold.
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