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calendar_month Aug 25, 2026

SK Hynix Drops 5% in Seoul, KOSPI Drops 3% Amid Reported US Pressure for Korean Chipmakers to Invest in America; Brent Slips as Iran Tensions Rise

Asian stocks traded sharply lower at the time of writing, led by a 2.66% drop in South Korea’s KOSPI, while semiconductor heavyweights SK Hynix Inc – ADR (NASDAQ:SKHY) and Samsung Electronics (OTC:SSNLF) slid amid reports of increased U.S. pressure on Korean chipmakers to invest in American facilities.

South Korea Stocks Slide as SK Hynix Shares Tumble

Late Monday, South Korea’s KOSPI fell 2.66% to 6,518.92, extending losses across the benchmark as semiconductor stocks came under pressure.

Shares of SK Hynix in Seoul dropped 5.03% to 1.587 million Korean won, while Samsung Electronics declined 2.92% to 249,500 won.

The sell-off also extended to U.S.-listed SK Hynix shares.

The company’s American depositary receipt fell 4.92% to $155.37 in Monday’s U.S. session and was down another 0.89% at $153.99 in after-hours trading, according to Benzinga Pro.

Meanwhile, Japan’s Nikkei 225 fell 1.04% to 64,848.36.

US Pressures Korean Chipmakers Over American Investment

According to a report from South Korean outlet Chosun, U.S. officials pressed the South Korean government and local semiconductor companies to invest in U.S. memory-chip production and ensure stable supplies.

The reported pressure intensified after Seoul announced its KRW 800 trillion ($578.5 billion) Honam Semiconductor Mega Project.

Korean officials said Washington’s concern appears to center less on the domestic project itself and more on delays surrounding Korean companies’ planned investments in the U.S.

The discussions reportedly also took place during Trade Minister Kim Jeong-kwan’s four-day visit to the U.S.

The South Korean government has maintained that the semiconductor investment demands are separate from the $350 billion U.S. investment agreement reached between the two countries last year.

Seoul is expected to announce its first U.S. investment project in September.

US Futures Edge Higher as Oil Prices Slip

Dow futures fell 3.00 points, or 0.01%, to 53,486.00, while S&P 500 futures rose 3.00 points, or 0.04%, to 7,672.75. Nasdaq 100 futures gained 13.25 points, or 0.05%, to 29,119.00 as of around 8:45 p.m. EDT.

In commodities, WTI crude oil fell 0.08% to $84.94 per barrel, while Brent crude declined 0.30% to $91.89 per barrel. Natural gas futures slipped 1.11% to $2.751 per MMBtu.

Meanwhile, the U.S. dollar index, which tracks the greenback against a basket of currencies, stood at 98.973, down 0.01% on the day.

Iran Sanctions Add to Market Uncertainty

Meanwhile, U.S. Treasury Secretary Scott Bessent on Monday announced a new campaign targeting nearly 60 entities, individuals and vessels linked to Iran’s nuclear, missile, cyber and oil networks.

The measures also broaden sanctions exposure across digital assets, technology, gold, aviation and shipping, with foreign financial institutions facing potential penalties for helping Iran evade sanctions.

Iranian Finance Minister Ali Madanizadeh told state-run Islamic Republic of Iran News Network that Tehran is prepared for the measures and warned that Iran’s response could go beyond defense, CNN reported on Monday. 

“Apparently, (the US) has now decided to try another failure,” Madanizadeh stated.

Disclaimer: This content was partially produced with the help of AI tools and was reviewed and published by Benzinga editors.

Photo: Samuel Boivin on Shutterstock.com