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China’s CXMT Plans $42 Billion Shanghai IPO to Fuel AI Chip Ambitions

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ChangXin Memory Technologies (CXMT), China’s leading memory chipmaker, is preparing for a Shanghai initial public offering (IPO) as early as the first quarter of 2026, targeting a valuation of up to 300 billion yuan ($42.1 billion), according to sources familiar with the matter. The listing would mark one of China’s largest tech IPOs in years and a major step in Beijing’s drive for semiconductor self-sufficiency.

Founded in 2016 with state backing, CXMT is China’s main producer of dynamic random access memory (DRAM) chips — a market long dominated by Samsung, SK Hynix, and Micron Technology. The company aims to raise between 20 billion and 40 billion yuan, two sources said, while a third suggested about 30 billion yuan, with a prospectus possibly unveiled in November.

CXMT’s IPO plans come amid a surge in Chinese semiconductor stocks, with the CSI CN Semiconductor Index up nearly 49% this year. The firm has already begun pre-IPO “counselling” procedures with China International Capital Corporation and CSC Financial, both state-backed investment banks.

The proceeds will help finance CXMT’s aggressive push into high bandwidth memory (HBM) — an advanced form of DRAM critical for AI chips and data center processors such as those used in Nvidia’s GPUs. The company is building an HBM packaging plant in Shanghai, targeting initial production by late 2025 and mass output of HBM3 chips by 2026.

CXMT’s expansion is especially vital after U.S. trade restrictions cut off China’s access to advanced HBM chips last year. Analysts at TechInsights estimate the firm’s capital expenditure at $6–7 billion across 2023–2024, with a further 5% increase in 2025. The company’s initial HBM wafer capacity will reach about 30,000 per month, roughly one-fifth that of SK Hynix.

If successful, the IPO could attract heavy domestic investor demand, seen as both a financial opportunity and a patriotic play in China’s race to achieve technological independence.

China’s Chipmaking Equipment Purchases Expected to Decline in 2025

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China’s spending on chipmaking equipment is projected to decline this year after three consecutive years of growth, driven by overcapacity and U.S. sanctions, according to a report released by Canadian semiconductor research firm TechInsights on Wednesday.

China has led global purchases of wafer fabrication equipment for the past two years, buying $41 billion worth of tools in 2024 and accounting for 40% of global sales. However, spending is expected to fall to $38 billion in 2025, a 6% year-over-year decline, with China’s share of global purchases dropping to 20%, marking the first decrease since 2021, according to Boris Metodiev, a senior semiconductor manufacturing analyst at TechInsights.

“We can see some slowdown in Chinese spending due to export controls and overcapacity,” Metodiev stated during an online seminar.

China had been a key growth driver in the global wafer fabrication equipment sector in 2023 and 2024, even as demand for consumer electronics declined globally. Much of the country’s recent equipment purchases were spurred by stockpiling in response to U.S. sanctions aimed at limiting China’s access to advanced chip technology, particularly those with potential military applications.

Despite these sanctions, Chinese companies such as Semiconductor Manufacturing International Corporation (SMIC) and Huawei have made advancements. Last year, they produced an advanced chip using more labor-intensive and costly methods. Chinese firms have also expanded significantly in the mature-node chip segment, boosting production capacity and gaining market share from Taiwanese competitors.

However, SMIC warned on Wednesday of potential oversupply risks in the mature-node chip market.

Leading Chinese equipment manufacturers like Naura Technology Group and AMEC have also expanded globally, with Naura now ranking as the world’s seventh-largest equipment maker by sales. Despite these efforts to bolster self-sufficiency, China still faces significant challenges in producing lithography systems and testing and assembly tools.

Dutch company ASML, the largest manufacturer of lithography machines, continues to dominate this sector. In 2023, Chinese companies provided only 17% of the testing tools and 10% of the assembly equipment used within the country, Metodiev added.