Domestic DRAM: CXMT's Path to Breakthrough
CXMT (ChangXin Memory Technologies), the only volume DRAM manufacturer in mainland China, has achieved large-scale production of DDR4 and LPDDR4X, with its process node advancing to the 17nm class. Its products have been widely validated and adopted in consumer electronics (PCs, phones) and industrial control.
On DDR5, CXMT is accelerating development and production preparation. While it still trails international leaders such as Samsung and SK hynix by one to two generations on advanced nodes (1-alpha/1-beta nm), it is competitive on price-performance in mature-node products. CXMT's DDR5 parts are expected to begin small-volume supply in the second half of 2026.
Domestic NAND Flash: YMTC's Technology Base
YMTC (Yangtze Memory Technologies) has made remarkable progress in 3D NAND. Its Xtacking architecture — an innovative approach that fabricates the peripheral circuitry and the memory array separately and then bonds them together — delivers higher storage density and faster I/O speeds. Despite the impact of export controls, YMTC's product supply into the domestic market and its technology iteration continue to advance.
Market Opportunities in Domestic Substitution
For distributors, the rise of domestic memory chips creates multiple openings: policy-driven localization demand opens a broad market, especially in the government, defense, telecom, and finance segments of the Xinchuang (IT application innovation) program; the channel systems of domestic memory vendors are still immature, giving specialized distributors room to differentiate on service; and the coexistence of domestic and imported products means distributors capable of supplying along both lines are increasingly favored by end customers.
Remaining Challenges
Domestic memory chips still lag international leaders in high-end products such as HBM and enterprise SSDs; some end customers remain cautious about the reliability and consistency of domestic parts and want more real-world validation; and uncertainty in export control policy may affect equipment procurement and technology upgrades at domestic memory manufacturers.
JH Semiconductor tracks domestic memory developments closely. Alongside imported brands, we actively introduce validated domestic memory options, giving customers a diversified supply base.