Sources: Samsung and SK Hynix are upgrading their China fabs to produce NAND flash chips with 200+ layers, aiming to fend off fast-growing Chinese rival YMTC
Samsung Electronics (005930.KS) and SK Hynix (000660.KS) are upgrading their China factories to produce more advanced memory chips …
Context & Ripple Effects
Samsung's China NAND footprint has been an investment priority since its 2019 China-fab expansion, while Samsung demonstrated 286-layer NAND production in 2024. The move to add 200-plus-layer capability to China fabs brings a more advanced process node into that established manufacturing base.
Competitive pressure is widening beyond YMTC: CXMT is preparing a move into NAND, and Samsung and SK Hynix had been evaluating Chinese-made equipment for their China plants as a hedge against U.S. curbs. The upgrades therefore address both NAND technology competition and the resilience of local fab operations.
First-order effects
- Samsung and SK Hynix raise the technology level of their China NAND output, strengthening their ability to compete with YMTC for customers that require higher-density flash chips.
- YMTC faces a more capable incumbent manufacturing base in China as it seeks to turn its layer-stacking technology into competitive NAND products.
Second-order effects
- CXMT's planned NAND entry meets a market where Samsung, SK Hynix and YMTC are all advancing production, increasing pressure on suppliers to compete on process maturity, output and customer qualification.
- The manufacturers' earlier evaluation of Chinese equipment gains strategic relevance: advanced China-fab upgrades increase the value of supply options that are less exposed to external equipment restrictions.
Third-order effects
- If high-layer NAND production becomes established across China-based fabs, NAND competition will be shaped less by a simple incumbent-versus-local challenger divide and more by the ability to sustain manufacturing technology under differentiated equipment supply chains.
- The move reinforces the separation of NAND from the broader AI-memory narrative: manufacturers are committing capital to a storage-memory technology with its own density and cost race.
The trend: NAND is becoming a more contested China manufacturing arena as global leaders upgrade local fabs while Chinese memory makers expand their technology and product ambitions.