U.S. AI Chip Export Restrictions Cause Turmoil in Asian Markets: Korean Stocks Plummet, Nikkei Drops, Gold ETFs Hit Record Highs

The U.S. government has imposed export controls on AI chips like Nvidia H20 to China, causing fluctuations in the Asian market. South Korea's KOSPI index fell by 1.21%, with stock prices of Samsung Electronics and SK Hynix dropping; Japanese semiconductor stocks plummeted, and the Nikkei 225 index fell by 347 points. The Japanese yen appreciated by 0.59% against the U.S. dollar, and gold ETFs reached their second-highest price ever due to increased demand for safe-haven assets. South Korea and the U.S. are set to begin trade tariff negotiations, with South Korea considering increasing imports from the U.S. and boosting production within the U.S. to reduce its trade surplus.
Key Updates
04/16 10:54
U.S. AI Chip Export Restrictions Cause Turmoil in Asian Markets: Korean Stocks Plummet, Nikkei Drops, Gold ETFs Hit Record Highs
The U.S. government has imposed export controls on AI chips like Nvidia H20 to China, causing fluctuations in the Asian market. South Korea's KOSPI index fell by 1.21%, with stock prices of Samsung Electronics and SK Hynix dropping; Japanese semiconductor stocks plummeted, and the Nikkei 225 index fell by 347 points. The Japanese yen appreciated by 0.59% against the U.S. dollar, and gold ETFs reached their second-highest price ever due to increased demand for safe-haven assets. South Korea and the U.S. are set to begin trade tariff negotiations, with South Korea considering increasing imports from the U.S. and boosting production within the U.S. to reduce its trade surplus.
US AI Chip Export Controls Cause Market Turmoil
On April 15, 2025, the US Department of Commerce announced new export licensing regulations for AI chips such as Nvidia H20 and AMD MI308 being exported to China. This move aims to limit China's development in the field of artificial intelligence and prevent these chips from being used in high-end applications like supercomputers.
Nvidia stated that this policy will result in the company recognizing approximately $5.5 billion in expenses this quarter. Following the announcement, Nvidia's stock price fell about 6% in after-hours trading, triggering a chain reaction in the global semiconductor market.
South Korean Stock Market Falls 1.21%, Led by Semiconductor Stocks
Affected by US export controls, the South Korean stock market fell across the board on April 16. The KOSPI index closed down 1.21% at 2,447.43 points. Samsung Electronics' stock price fell by 3.36%, and SK Hynix by 3.65%. Foreign investors sold a net total of 207.679 billion won in Korean stocks that day.
Korean media pointed out that although the short-term impact on orders is limited, if the controls persist, it could change the market structure and affect the cooperation model between Korean companies and Nvidia. The high-bandwidth memory (HBM3) used in the H20 chips is mainly supplied by SK Hynix and Micron, while Samsung is vying for the HBM3E supply qualification. If the AI chip market shrinks, it could lead to a decline in HBM demand, affecting memory prices and factory utilization rates.
Japanese Semiconductor Stocks Plummet, Nikkei Index Drops 347 Points
The Japanese market was similarly impacted. On April 16, the Nikkei 225 index closed down 1.01%, dropping 347.14 points to 33,920.40 points, ending a two-day upward trend. The TOPIX index fell 0.61%, closing at 2,498.03 points.
Japanese semiconductor equipment stocks suffered significant losses. Testing equipment company Advantest plummeted 6.55%, wafer cutting machine manufacturer DISCO fell 8.0%, and film deposition equipment company KOKUSAI dropped 8.48%. Concerns are rising in the market that US export controls may expand to other chip equipment.
Yen Appreciates 0.59%, Gold ETF Hits Second-Highest Record
Increased risk aversion drove the yen higher. On April 16, the yen appreciated 0.59% against the dollar, trading at 142.33 yen to 1 dollar. This marks the yen's first rebound after four consecutive trading days of depreciation.
At the same time, gold, as a safe-haven asset, was in demand. Japan's "Mitsubishi UFJ Trust Gold ETF" rose 1.42%, closing at 14,285 yen, marking the second-highest closing price since the ETF's listing, second only to April 1's 14,315 yen. Spot gold prices also reached $3,230.16 per ounce during Asian trading, rising nearly $20 in one day.
South Korea and US to Begin Trade Tariff Negotiations
Amid the US's push for reciprocal tariff policies, the South Korean government is actively preparing to engage in trade negotiations with the US. The South Korean Ministry of Economy and Finance stated that Deputy Prime Minister Choi Sang-mok will visit Washington next week to meet with US Treasury Secretary Scott Bessent to discuss trade issues, including new import tariffs.
Additionally, South Korean Minister of Trade, Industry and Energy Ahn Deok-geun is also expected to visit the US next week to meet with US Secretary of Commerce Howard Lutnick and Trade Representative Jamison Greer. Both sides are coordinating the possibility of holding a "2+2" meeting, with finance and trade ministers attending together.
South Korea Considers Reducing Trade Surplus with US
In response to pressure from US tariffs, the South Korean government is drafting a multi-faceted plan aimed at reducing the trade surplus with the US. The plan includes expanding imports of natural gas, crude oil, agricultural products, and weapons from the US, while encouraging South Korean companies to expand local production of automobiles and semiconductors in the US.
South Korean officials stated that these measures aim to improve the balance of trade data between South Korea and the US and reduce the pressure from the US to impose a 25% reciprocal tariff on South Korea. The South Korean government also plans to make flexible use of the 90-day tariff grace period provided by the US to maximize national interests.