South Korea exported $56.44 billion of semiconductors in October 2026, up 259.4% from a year earlier, according to the Ministry of Trade, Industry and Energy. By our arithmetic, chips were 49.0% of the country’s $115.28 billion of exports, up from about 26.4% in October 2025.
Total exports rose 93.7%, the ministry said, making October the second-highest month on record after September’s $121.1 billion. Semiconductors supplied about 73% of the $55.8 billion rise, by our arithmetic.
Short explainer · Korea chip exports
A vertical news Short summarising this story. Figures come from Korea’s Ministry of Trade, Industry and Energy; our arithmetic is labelled.
Business Pill · The Memory Wall
A short explainer on the memory wall: why moving data, not computing it, often limits chips. It teaches the general idea only and says nothing about Korea’s trade figures.
The key insight: As we read the release, South Korea now depends on one product line for about half its exports: semiconductors were 49.0% of October exports by our arithmetic, up from about 26.4% a year earlier, after rising 259.4% to $56.44 billion.
Imports rose 36.0% to $72.78 billion, leaving a trade surplus of $42.50 billion, the ministry said. Exports have now topped $110 billion for two straight months.
The ministry said chip exports stayed above $50 billion for a second month as global big tech companies kept spending to secure leadership in AI, holding prices and volumes high. September’s $60.3 billion remains the monthly record.
Exports of everything other than chips rose 34%, according to the release. Computer exports, which the ministry ties to AI server investment and demand for server SSDs, rose 496.6% to $5.85 billion. Together with chips, that is 54.0% of October exports, by our arithmetic.
South Korea’s October exports split into semiconductors and everything else, October 2025 vs October 2026. Source: Ministry of Trade, Industry and Energy release of 1 November 2026; October 2025 values, shares and the 73% figure are our arithmetic from the ministry’s growth rates.Animated: the DDR5 16Gb fixed price from June to October 2026, as listed in the Korea Ministry of Trade, Industry and Energy release of 1 November 2026; the 25% rise is our arithmetic.
Memory Prices and Data-Centre Gear
The release lists the fixed price of a DDR5 16Gb chip at $40.0 in June, $45.0 in July, $46.5 in August, $48.0 in September and $50.0 in October, a 25% rise by our arithmetic. The NAND 128Gb price moved from $28.8 to $30.6 over the same months.
Electrical equipment exports rose 74.0% to $1.99 billion, the highest monthly figure on record, on demand for transformers, wires and cables for AI data centres, the ministry said. Imports of semiconductor equipment rose 49.2% to $2.52 billion.
Where the Chips Went
Exports to China rose 133.6% to $26.98 billion and exports to the United States rose 185.8% to $24.90 billion, according to the release. Exports to ASEAN rose 128.0% to $21.33 billion, a record.
For 1 to 25 October, the ministry put semiconductor exports to China at $14.8 billion, up 331%, and to the United States at $5.8 billion, up 497%, alongside $2.2 billion of computers, up 816%.
A Holiday in the Base
Part of the jump is the calendar. The ministry says the Chuseok holiday moved from October 2025 to September 2026, adding working days this October. Adjusted for working days, average daily exports rose 76% to $5.24 billion, below the 93.7% headline.
The Business Lever: One Product Line Carries a Country
As we read the release, Korea’s export base has narrowed to the AI build-out: one product category went from about a quarter of the country’s exports to about half in twelve months, by our arithmetic. Taiwan showed a similar pattern in September.
January to October exports reached $930.0 billion, up 60.6%, the ministry said, leaving $70 billion to the $1 trillion mark we covered as Korea neared it. Memory prices also show up downstream, in what a PC costs to build.
The Structural Read
As we read the growth split, chips rose 259% while everything else rose 34%, so semiconductors supplied about 73% of the $55.8 billion rise in exports, by our arithmetic.
As we read the price line, the ministry links the chip surge to high prices as well as volumes, and the DDR5 16Gb fixed price it lists rose 25% from June to October, by our arithmetic.
As we read the calendar, some of the 93.7% headline reflects the Chuseok holiday moving into September; the working-day-adjusted daily average rose 76%, the ministry said.
Kim Jung-kwan, Minister of Trade, Industry and Energy (our translation), 1 November 2026
“With our exports continuing solid growth of more than $110 billion in October, achieving $1 trillion of annual exports in November is certain.”
Three Implications
FOR MEMORY BUYERS The ministry lists the DDR5 16Gb fixed price at $50.0 in October, up from $40.0 in June.
FOR DATA-CENTRE SUPPLIERS The ministry says electrical equipment exports hit a monthly record of $1.99 billion on AI data-centre demand for transformers, wires and cables.
FOR KOREA’S ECONOMY The ministry says January to October exports reached $930.0 billion, $70 billion short of $1 trillion.
The framework puts it plainly: “Memory is becoming the new compute.”
As we read it, Korea’s October trade data shows that constraint as a price and volume signal at the country level. The framework is the owner’s argument and does not discuss Korea’s trade figures.
The release does not break chip exports down by company or by product type such as HBM, and its country splits for chips cover 1 to 25 October only. The October 2025 values, shares and the 73% figure are our arithmetic from the ministry’s growth rates.
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South Korea’s semiconductor exports rose 259.4% to $56.44 billion in October, according to the trade ministry, and by our arithmetic made up 49.0% of the country’s exports, up from about 26.4% a year earlier.
A note on sourcing. All trade figures come from the Korea Ministry of Trade, Industry and Energy release of 1 November 2026, read in Korean and translated by us. The October 2025 values, the 49.0%, 26.4%, 54.0%, 73% and 25% figures are our arithmetic. We did not contact the ministry.
Gennaro Cuofano is a CRO and tech executive who has worked in AI since late 2015, starting with bringing NLP, natural-language generation, voice and chatbot products to the marketing industry. His background is in law and finance: he holds a Master's degree in Law and an International MBA with an emphasis on corporate finance (LUISS Business School and the University of San Diego, 2012), and worked as a financial analyst at a real-estate investment firm in San Diego and as an assistant controller. His work focuses on business model strategy, business engineering and, more broadly, structural analysis: how companies make money, read from their own filings. He created FourWeekMBA and leads research there and at The Business Engineer, his newsletter on AI and business strategy, with over 95,000 subscribers and more than 1,000 published analyses. His writing has also appeared on Entrepreneur (for example, How to Digitize a Family Business in Europe) and HackerNoon. Find him on LinkedIn and Substack. See how we source.
