China's YMTC Plans Two More Chip Factories to More Than Double NAND Flash Capacity

Chinese chipmaker YMTC (Yangtze Memory Technologies Corp) is planning to build two additional NAND flash memory factories on top of the facility already set to complete in 2026 — a move that would more than double its production capacity. The expansion comes despite ongoing US export controls targeting Chinese semiconductor manufacturers and signals Beijing's determination to achieve chip independence.

YMTC's Ambitious Capacity Expansion

YMTC is already constructing a major new fab scheduled for completion in 2026. Now, according to Reuters, the company plans to add two more factories, substantially increasing its NAND flash output. YMTC has been investing heavily in its proprietary Xtacking architecture, which allows it to design 3D NAND chips with competitive density despite being cut off from the most advanced foreign equipment. The new factories will manufacture chips using this domestic technology stack.

Defying US Export Controls

The US has placed YMTC on export restriction lists and has pressured allies to limit sales of advanced chip-making equipment to the company. Despite these constraints, YMTC continues to expand aggressively, relying on domestically developed tools and equipment where possible, and sourcing remaining components through channels that comply with current restrictions. China's government has provided significant subsidies to support YMTC's growth as part of its broader semiconductor self-sufficiency push.

Implications for the Global NAND Market

A massive increase in YMTC output could significantly alter the global NAND flash market. NAND prices have been volatile, and a surge in Chinese supply could push prices lower — benefiting consumer electronics makers but squeezing margins for Samsung, SK Hynix, Micron, and Kioxia. Western chipmakers are watching YMTC's expansion with concern, as state-subsidized Chinese competition on price could be difficult to counter in commodity memory markets.

The Bigger Picture: China's Chip Independence Drive

YMTC's expansion is part of a broader Chinese government initiative to reduce dependence on foreign semiconductors across the supply chain. From SMIC in logic chips to CXMT in DRAM, Chinese chipmakers are scaling up across every category. While they remain behind the cutting edge in sub-5nm logic, Chinese producers are closing the gap in memory — a segment where volume and cost matter as much as raw performance.

The Bottom Line

YMTC's plan to build two more NAND factories represents a significant escalation in China's chip manufacturing ambitions. Despite US export controls, the company is pressing forward with a capacity expansion that could reshape global memory markets. For Western chipmakers and policymakers, the message is clear: export restrictions are slowing but not stopping China's semiconductor ascent.