Samsung and SK hynix Build HBM Packaging Fabs

The Ministry of Trade, Industry and Energy said an industrywide 392 trillion-won ($252.5 billion) investment will be injected into the central Chungcheong region, including HBM fabs and packaging facilities from Samsung Electronics and SK hynix, as a follow-up to President Lee Jae Myung's broader "tripolar" mega-project strategy for AI-led industrial growth (Korea Herald; Korea Times). Samsung Group pledged a total of 140 trillion won for the region: 56 trillion won by Samsung Electronics for an HBM fab and packaging facility, 67 trillion won by Samsung Display for OLED and next-generation display lines, 8 trillion won by Samsung Electro-Mechanics for AI-server package substrates, and 9 trillion won by Samsung SDI for battery manufacturing. Samsung Electronics Chairman Lee Jae-yong said the investment would help the region "grow into a global hub for IT materials and components" (Korea Herald). SK hynix said it will invest 100 trillion won to establish Cheongju as its next-generation NAND flash hub, split between 80 trillion won for the new M17 fab and 20 trillion won for advanced packaging facilities including a P&T7 plant; CEO Kwak Noh-jung said the M17 fab is targeted to break ground next year and begin operations in the first half of 2029.

The Chungcheong package sits alongside a separate, larger investment plan the two companies unveiled days earlier for a southwestern Korean chip complex, part of a reported combined commitment in the hundreds of billions of dollars across multiple sites this year as Seoul pushes to cement its position in AI-era memory supply (CNBC). Samsung Group expects the Chungcheong investments alone to create roughly 250,000 jobs, and the government is offering tax incentives, policy financing, and administrative support to accelerate construction.

HBM packaging, not wafer output, has repeatedly been cited as the tighter constraint on how fast Nvidia- and AMD-class AI accelerators can ship, since each GPU package requires memory stacks bonded through advanced packaging lines with limited global capacity. New dedicated packaging fabs at Samsung's Onyang and Cheonan hubs and SK hynix's Cheongju site, if delivered on the stated timelines, would add meaningful throughput starting toward the end of this decade rather than in the near term.

Construction timelines and yield ramp for the new packaging lines, whether the M17 fab's 2029 target holds, and whether South Korea's broader chip investment wave (this package plus the separate southwestern complex) becomes a template other governments use to court memory and packaging capacity domestically.