CXMT IPO: China's DRAM Self-Sufficiency Accelerates, Global Storage Supply Chain Fission

Event: CXMT Launches IPO, Accelerating China's DRAM Self-Sufficiency

On June 24, 2026, Changxin Memory (CXMT) officially initiated its IPO process, becoming another major capital event in China's semiconductor manufacturing sector following SMIC. This move means that China is accelerating its self-sufficiency strategy in the DRAM field to counter the long-term trend of global technology decoupling. CXMT's IPO will not only provide funding for its capacity expansion but also reshape the geopolitical and competitive landscape of the global DRAM industry.

Background: From Technology Blockade to Independent Breakthrough

Changxin Storage is the only company in mainland China that mass-produces DRAM chips, mainly producing DDR4, DDR5, and LPDDR series products. Since its establishment in 2016, CXMT has gradually broken through the 17nm (1x nm) process through technology licensing (Qimonda technology) and independent R&D, and is evolving toward 1z nm (15nm class). However, the continuous escalation of U.S. semiconductor export controls on China, particularly the BIS regulations starting in 2022, has restricted China's access to advanced DRAM manufacturing equipment (such as EUV lithography machines and high numerical aperture immersion equipment), forcing CXMT to turn to domestic equipment alternatives and technological self-reliance.

From 2023 to 2025, CXMT expanded 12-inch wafer fabs in Hefei, Beijing, and other locations, with capacity targets rising from 100,000 wafers per month to 300,000 wafers per month. However, huge capital expenditures and continuous R&D investment put immense financial pressure on the company. The IPO has become a key path for maintaining expansion and reducing dependence on foreign capital.

In-Depth Analysis

Technology Impact: Where Is the DRAM Technology Roadmap Heading?

• CXMT's current mass production nodes are concentrated at 1x nm and 1y nm, with a generation gap compared to Samsung, SK Hynix, and Micron's 1z nm and 1α nm (10nm class). Its technical barriers are as follows:
• Lack of EUV Lithography: The fine patterning of advanced DRAM relies on EUV, but CXMT cannot obtain it due to export controls and can only compensate through multiple patterning (SAQP) and self-aligned processes, leading to higher costs and lower yields.
• High-k Metal Gate (HKMG): Micron and Samsung have already adopted HKMG in 1α nm to reduce leakage, while CXMT is still in the R&D stage.
• 3D Stacking and HBM: High Bandwidth Memory (HBM) has become a bottleneck for AI computing power, and CXMT has not yet mass-produced products above HBM2E, with a significant gap compared to SK Hynix.

However, CXMT is accelerating: it plans to mass-produce 1z nm in 2027 and introduce 1α nm in 2029. The IPO funds will be used for R&D and procurement of domestic alternative equipment (such as AMEC's etching machines and Shanghai Micro Electronics' lithography machines). If successful, China's DRAM technology gap will narrow from five years to three years.

Supply Chain Impact: Who Benefits and Who Faces Risks in the Supply Chain?Upstream Equipment and Materials: - Beneficiaries: Domestic equipment manufacturers (AMEC, NAURA, ACM Research) will see more orders; target and photoresist suppliers (Jiangfeng Electronics, Tongcheng New Materials) are expected to enter CXMT's production lines. - Parties at Risk: International equipment giants (Applied Materials, Lam Research) may lose some market share in China due to export controls, but ASML's EUV sales will not be affected (CXMT has not purchased them).

• Midstream Manufacturing:
• CXMT's expansion will squeeze the market share of existing giants Samsung, SK Hynix, and Micron, especially in the consumer DDR4/LPDDR segment. However, in high-end HBM and DDR5 fields, Chinese customers (such as Alibaba and Huawei) still rely on South Korean and Taiwanese suppliers.
• It poses direct competition to Taiwanese niche DRAM manufacturers like Nanya Technology and Winbond Electronics, but Taiwanese manufacturers have shifted to DDR3 and customized markets.

• Downstream Applications:
• Chinese smartphone and server manufacturers will gain a more stable DRAM supply, reducing reliance on imports. However, if CXMT's yield rate is insufficient, it could lead to an overall cost increase.

Competitive Landscape: The Global DRAM Triopoly Becomes a Four-Player Game?

• Currently, the global DRAM market is dominated by Samsung (approx. 40%), SK Hynix (30%), and Micron (25%), with the three accounting for over 95% combined. CXMT's market share is only about 3%, concentrated in the low-end market. After the IPO:
• Short-term (1-2 years): CXMT will increase capacity investment, but technical and yield limitations make it difficult to shake the triopoly's position. Competition still focuses on HBM and DDR5.
• Medium-term (3-5 years): If 1z nm mass production succeeds, CXMT can enter the mainstream DDR5 market and engage in price wars with Micron. Geopolitical factors may prompt Chinese customers to prioritize domestic DRAM procurement, giving CXMT room for share growth.
• Long-term (5-10 years): China may form a cluster of "CXMT + ChangXin + Wuhan Xinxin," attempting to replicate the panel industry's catch-up path. However, DRAM's capital intensity and technology iteration speed are far higher than panels, making success extremely difficult.

Regional Implications: Decentralization of Global Memory Supply Chain- United States: Continuing to tighten export controls while supporting Micron’s domestic fab construction (e.g., the New York wafer fab). However, U.S. control over the DRAM supply chain is weakening as CXMT has established a domestic substitution ecosystem. - Taiwan, China: Foundries such as UMC and Powerchip may take on some non-DRAM orders, but overall impact is limited. Taiwan remains a stronghold for advanced DRAM packaging (e.g., CoWoS). - South Korea: Samsung and SK Hynix are accelerating expansion outside China (in the U.S. and South Korea), while strengthening HBM technical barriers to counter the low‑price competition brought by China’s self‑sufficiency. - Japan: Equipment and materials suppliers (Tokyo Electron, Shin-Etsu Chemical) benefit from China’s capacity expansion demand, but must balance relations with both China and the U.S. - Europe: Lithography giant ASML is unaffected, but emerging storage technologies like GaN and SiC may become new geopolitical flashpoints.

Investment Perspective: Logic of the Capital Market

• CXMT’s IPO will attract significant Chinese and international capital to the semiconductor self‑reliance theme. Notable points:
• Valuation risk: Chinese semiconductor companies generally enjoy a local premium, but the DRAM industry is highly cyclical. Once a price‑cutting cycle arrives, CXMT will face enormous profitability pressure.
• Long‑term value: If CXMT can achieve technological breakthroughs by 2028‑2030, its economies of scale will generate considerable returns. Investors should closely monitor equipment installation progress and yield ramp‑up.
• Industry chain opportunities: Supporting equipment and materials suppliers, as well as packaging and testing houses (Tongfu Microelectronics, JCET), will benefit from CXMT’s capacity expansion, but one must be cautious if domestic equipment substitution falls short of expectations.

Long‑Term Outlook: Global DRAM Landscape over the Next Five Years

• 2026‑2028: CXMT completes its IPO fundraising, ramps capacity from 200k wafers/month to 300k, and improves 1z nm yield. The global DRAM market faces a mild oversupply, putting prices under pressure.
• 2029‑2031: If China’s DRAM technology reaches 1α nm, it will be capable of producing HBM3, but advanced packaging capabilities (e.g., TSV) will still depend on TSMC or third parties. Chinese AI chip companies (e.g., Cambricon, Huawei) may shift to sourcing domestic HBM.
• Beyond 2032: The global DRAM market may split into two ecosystems: an advanced process camp led by the U.S. and South Korea, and an autonomous camp led by China. The two will be technically compatible, but supply chains will be completely isolated.

Industry Chain Analysis: A Complete Picture from Equipment to Packaging Upstream: - Silicon wafers: Domestic silicon wafer manufacturers such as NSIG and Lion Micro will receive orders for 12-inch polished wafers, but high-purity silicon materials still rely on Japan's Shin-Etsu and SUMCO. - Photoresist: Tongcheng New Materials and Nanda Optoelectronics have been introduced into CXMT. The domestic substitution rate for ArF photoresist is about 20%, still need improvement. - Specialty gases: Huate Gas and Jinhong Gas supply NF3, CF4, etc., but high-purity WF6 and others still need to be imported.

• Midstream:
• Manufacturing: CXMT builds its own wafer fabs, adopting a "self-developed + domestic equipment" route. The domestic substitution rate for etching and deposition equipment is about 30%, and key film thickness measurement equipment relies on KLA and Agilent.
• EDA: Huada Jiutian and Galian Electronics provide some DRAM design tools, but advanced simulation and OPC still rely on Synopsys and Cadence (restricted).

• Downstream:
• Packaging: JCET and Tongfu Micro have DRAM packaging and testing capabilities, but the TSV and micro-bump processes required for high-end HBM have not yet been mastered. CXMT may build its own packaging line or cooperate with Haitian Semiconductor.
• Testing: Domestic testing machines such as Huafeng Test & Control and Changchuan Technology can cover DRAM CP/FT testing, but there is still a gap in high-frequency testing.

Conclusion: Self-sufficiency accelerates, but the road to catching up technologically is long

CXMT's IPO is an important milestone in the self-reliance of China's semiconductor industry, but the high barriers of the DRAM industry mean that it will still be difficult to shake the top three players within the next five years. The real impact lies in the "de-risking" of the supply chain—China will gradually establish a local closed loop from equipment and materials to manufacturing, and the global DRAM industry will shift from "efficiency-first" to "security-first". Investors need to be wary of the uncertainty caused by geopolitical fluctuations, but in the long run, the increase in China's DRAM self-sufficiency rate is an irreversible trend.