Japanese chipmaker Kioxia Holdings and US-based Western Digital open a ~$6.79B flash memory fab in Japan's Mie Prefecture, amid a downturn for memory chips
Ryosuke Eguchi / Nikkei Asia :
Context & Ripple Effects
Kioxia and Western Digital are cutting the ribbon on their Yokkaichi-area fab in Mie Prefecture at the worst point of the memory cycle — a deliberate counter-cyclical bet that flash built now will be cheap to fill when demand returns. The two partners' relationship has been turbulent since: merger talks surfaced after Western Digital's $900M raise from Apollo and Elliott but stalled in 2023, before Japan stepped in with ~$1.64B in subsidies to keep the partnership expanding output jointly.
Japan is treating memory as strategic infrastructure rather than a cyclical commodity: alongside this fab, Tokyo backed Micron's ~$3.6B Hiroshima investment with up to $1.29B in subsidies, making the country one of the few places where both NAND and DRAM capacity are being state-supported through the downturn.
First-order effects
- Kioxia and Western Digital add NAND wafer capacity just as memory prices fall, squeezing near-term margins for both partners while competitors cut spending.
Second-order effects
- Micron's subsidized Hiroshima DRAM buildout means Japan now anchors capacity for both major memory types, raising the bar for Samsung and SK Hynix to justify equivalent government-backed expansion elsewhere.
Third-order effects
- Counter-cyclical building with state money proved out: Kioxia went from cash-strapped in 2023 to a December 2024 Tokyo IPO, a 500%+ 2025 stock run, and an expected ~30-fold jump in quarterly operating income by FY2026 as AI demand absorbed the capacity.
The trend: Memory makers are building fabs through downturns with government co-funding, betting that AI-driven demand will reward whoever holds capacity when the cycle turns.