South Korea's chip tool makers (Applied Materials, ASML, KLA, Lam Research) pivot capex focus to AI-specific manufacturing.
ASML Holding, the Dutch equipment manufacturer, was the largest mover following South Korea's announcement of new chip spending plans. Shares in ASML rose 6.79% to 1,721.40 euros on June 30 in Amsterdam, adding approximately 43 billion euros to the company's market capitalization in a single day, bringing it to 675.86 billion euros.
The context for this gain runs deep. SK Hynix announced in March a 11.95 trillion won ($7.97 billion) order for ASML's EUV lithography equipment—the largest single order ASML has reported from any customer. The new fab plan announced by South Korea carries a price tag of $518.3 billion, roughly 65 times larger than the tool order itself, though not all fab construction costs cover lithography equipment.
Samsung Electronics and SK Hynix have each committed to building two new factories in southwest Korea. The pair account for approximately two-thirds of global memory chip output. Neither company provided a completion timeline for the new facilities.
Chip-tool manufacturers received early attention from investors because semiconductor fab construction involves lengthy timelines and complex requirements including land acquisition, utility infrastructure, and extensive setup. Equipment orders arrive earlier in the development cycle—like the March ASML contract—providing investors with concrete figures. Bloomberg flagged ASML and other chip-equipment manufacturers as the primary focus of market movement following Samsung and SK Hynix's announcements.
Memory chip producers now face valuation based on dual pressures: supply constraints and planned capacity expansion. South Korea aims to double memory-chip capacity within five years and accelerate development at the Yongin cluster. Samsung shares have surged 179% year-to-date and SK Hynix has jumped 307%, both driven by strong high-bandwidth memory demand.
"Memory pricing is still tied to supply and demand, and if capex speeds up over the next decade, the risk of long-term oversupply grows," said Morningstar analyst Jing Jie Yu. Seoul National University's Lee Jong-ho, a professor in the Department of Electrical and Computer Engineering, characterized the investment as something that "could determine a company's future." While current demand remains solid, Lee noted that three-year demand outlooks remain uncertain.
SK Hynix Chairman Chey Tae-won outlined the practical challenges. The project requires "vast sites, along with sufficient power, water and skilled workers." The company's experience provides perspective: SK Hynix took nine years to complete its large Gyeonggi Province cluster.
According to Nomura analyst CW Chung, investing in other regions could help hedge against uncertainties tied to the Yongin cluster. CLSA's Sanjeev Rana flagged the risk of memory market downturns but noted that producers could moderate spending if capacity becomes excessive.
The expansion strategy connects memory chips to anticipated demand beyond data center applications. Korean officials told the Associated Press they expect demand to climb as AI adoption extends into industrial robots and autonomous vehicles.
The divergence between ASML's 6.79% gain and SK Hynix's 0.84% movement reflects a crucial market calculation. Equipment manufacturers are being rewarded based on expected near-term orders. Memory producers are pricing in supply tightness, but that advantage must persist long enough for new fab investments to generate returns.