AI Boom Funnels Gains to Korea's Conglomerates

South Korea’s semiconductor exports jumped 263% in the first 20 days of October, but gains from the AI boom are concentrating among chip giants and high-income households rather than spreading across the economy. Chips made up 41% of Korean exports, while computer exports rose 435%. The export surge is real. So is the hierarchy deciding who gets the gains.

Who Gets the Windfall

Kim Gwang-suk of Hanyang University said most export categories outside chips had weakened markedly. Record earnings at Samsung and SK Hynix haven’t spread to non-chip industries or the small and mid-sized firms that employ most Koreans. Bank of Korea researchers have warned of a “semiconductor version of Dutch disease,” in which one booming industry stifles the rest.

The income figures underline the divide. South Korea’s gross national income rose 13.2% year on year in the first quarter, nearly 3.5 times GDP growth of 3.8%. High-income and high-asset households captured most gains through wages and stock prices, while real-estate costs contributed to inequality. A rising national total doesn’t mean the people doing the work share equally in the wealth.

SK Hynix reported quarterly profit up sevenfold to $63 billion and plans to return about $45 billion to shareholders. The Kospi is up nearly 42% this year. Meanwhile, data-center firm Elice fell 32% in its Kosdaq debut, the exchange’s biggest IPO this year. Even inside the boom, the market sorts winners and losers at speed.

The rally has also strengthened South Korea’s family-run conglomerates. Since the 1997 crisis, governments have promised antitrust action to rein them in, level the field, lift productivity, empower women and encourage young entrepreneurs. The Bank of Korea has warned of a technology version of the “resource curse,” where a small circle of officials and executives makes decisions and keeps the gains.

A Pledge Without the Machinery

President Lee Jae Myung pledged before taking office in June 2025 to push the Kospi above 5,000, about double its level then, by improving corporate governance and ending the “Korea discount.” The index reached that level amid the AI boom, without significant legislation or reform. The promised political fix didn’t drive the index there; demand for AI hardware did.

A handful of global technology companies made the decisions underpinning the boom. If Microsoft, Amazon, Meta and Alphabet decide to buy fewer chips, servers and data centers, Korean factories, the stock market and the Bank of Korea could quickly feel the reversal. Chip shipments to the United States rose 154% in October despite US tariffs, and shipments to China increased 155%.

The exposure reaches beyond Korea. Taiwan Semiconductor Manufacturing Co. directly accounts for as much as 15% of Taiwan’s roughly $1 trillion in annual GDP, and about 1,600 domestic suppliers rely on the company. TSMC makes up at least 42% of the Taiwan Stock Exchange Weighted Index, which has rallied more than 61% this year. A change in hyperscalers’ spending could hit foundries, chip packaging, equipment suppliers, industrial real estate and banking credit.

The Boom’s Bill Comes Due

Across the region, export figures dazzle as dependence deepens. Taiwan’s economy grew 12.92% year on year in the second quarter, after 15.43% in January-March. Thailand’s Stock Exchange is up around 25% this year, led by local firms exporting parts and equipment for data centers. Moody’s Analytics economist Stefan Angrick said Asia-Pacific economies were “running at two different speeds,” as AI lifts exports and production while higher inflation and tighter policy weigh on growth. “Strong exports mask trouble at home,” he said.

The Asean+3 Macroeconomic Research Office warned that Southeast Asia, China, Japan and Korea were “particularly exposed” because of their role in global supply chains and growing integration into AI-related financial markets. The region accounts for two-thirds of global AI-related trade. AMRO estimates a demand slowdown could cut 2027 growth by as much as 1.5 percentage points from the current forecast of 4.1%.

South Korea’s proposed roughly $1 trillion investment in Gwangju, 300 kilometers from Seoul, is presented as a way to spread growth across a country of 51 million. The plan could offer a model, but it won’t move at AI speed. Rhee Chang-yong, the predecessor of Bank of Korea Governor Shin Hyun-song, called the chip surge “genuine luck” and Korea’s greatest vulnerability, warning that a reversal could resemble the dot-com collapse of 2000.

Laura Alfaro of the Inter-American Development Bank favored a national stabilization fund to protect households from sudden downturns and capital-flow swings. Krishna Srinivasan of the International Monetary Fund said Korea had benefited more than almost any other country from AI hardware demand. His colleague Sonali Jain-Chandra warned that a sharp reversal “could lead to shrinking exports, reduced investment and declining government revenue,” while falling AI-related asset prices could amplify the effects. The boom is being built on concentrated corporate power, and households are left exposed to the cycle.