CXMT in Hefei tests pilot line for next-generation bonded DRAM as China seeks faster memory progress

China’s ChangXin Memory Technologies (CXMT) is running testing on a pilot production line for next-generation bonded DRAM in Hefei, a move reported as part of efforts to narrow a perceived technology gap with South Korea’s leading memory makers.

By The Apex Times Newsroom3 min readAI-assisted Apex article

China’s ChangXin Memory Technologies (CXMT) is testing a pilot production line in Hefei for next-generation bonded DRAM, according to South Korean outlet Hankgyung and reported by Zero Hedge on July 5-6, 2026. The report said the testing is aimed at improving performance without relying on advanced EUV lithography, a constraint that has shaped manufacturing strategies for several Chinese semiconductor segments.

Hankgyung’s reporting, as summarized by Zero Hedge, placed the activity in the context of CXMT’s broader memory roadmap. The company is described as preparing for an initial public offering in the coming weeks, while the bonded-DRAM work is framed as a step toward closing technology differences with Korea “far faster than expected.” The Hefei location was characterized as being at the center of China’s semiconductor ecosystem.

The practical focus of the bonded-DRAM effort, as described in the report, is to produce higher-performance DRAM using manufacturing approaches that may require fewer of the most advanced tools. If those yield and performance targets are met, the company would be pursuing a route to scaling advanced memory capabilities despite limitations tied to specific production equipment categories.

The broader backdrop for CXMT’s progress is the tightening of U.S. export controls affecting China’s ability to manufacture advanced semiconductor components. A separate analysis posted by ChinaTalk’s Jordan Schneider, drawing on the semiconductor export-control landscape, described U.S. restrictions in December 2024 that targeted Chinese access to high-bandwidth memory (HBM) and certain semiconductor manufacturing equipment, and said the update added more than 140 Chinese chip manufacturers and toolmakers to the Commerce Department’s Entity List.

In that context, the ChinaTalk analysis said CXMT’s position in HBM development had improved to a range of “3-4 years behind global leaders” and stated that CXMT was aiming to produce HBM3 in 2026 and HBM3E in 2027. The analysis also emphasized that CXMT continues to face roadblocks including access constraints tied to U.S. lithography and other equipment controls, limited access to global markets, and uncertainty in ramping advanced memory timelines.

While CXMT’s bonded-DRAM testing is distinct from HBM specifically, both efforts sit within the same competitive and policy environment for advanced memory. The U.S. export-control measures described in the ChinaTalk analysis were designed, according to that write-up, to further constrain China’s AI development by leveraging a chokepoint in HBM supply chains controlled by major global memory suppliers.

For now, the available reporting centers on CXMT’s testing and near-term corporate timing, with details about specific test results, yields, and final ramp schedules not included in the provided record. The next observable steps would be whether the pilot-line testing proceeds into higher-volume production and whether IPO-related corporate filings and disclosures provide additional technical and timeline information.

Why It Matters

Memory progress is tied to manufacturing throughput, equipment access, and cost, and pilot-line testing can be a gating factor for later volume production.
The story sits within a U.S.-China semiconductor policy environment where export controls affect equipment and supply-chain chokepoints, shaping the pace at which Chinese firms can scale advanced memory.
If CXMT’s bonded-DRAM approach reduces reliance on the most advanced lithography tools while meeting performance targets, it could alter the balance of capacity coming from Chinese suppliers relative to other memory makers.
IPO timing can affect near-term capital planning and disclosures, but specific financial or technical commitments would require confirmation through corporate filings and follow-up reporting.

Sources

Key Facts

CXMT is reportedly testing a pilot production line in Hefei for next-generation bonded DRAM, as described in reporting attributed to South Korea’s Hankgyung.
The report said the bonded-DRAM testing is intended to achieve higher performance without using advanced EUV lithography.
Zero Hedge reported that CXMT is preparing for an initial public offering in the coming weeks, alongside the pilot-line testing.
A separate analysis from ChinaTalk’s Jordan Schneider discussed U.S. export controls issued in December 2024 targeting China’s access to HBM and certain semiconductor manufacturing equipment, and said more than 140 Chinese entities were added to the Entity List.
The ChinaTalk analysis said CXMT was aiming for HBM3 production in 2026 and HBM3E in 2027 and assessed CXMT as roughly 3-4 years behind global leaders in HBM development.