Inside CXMT’s US$4.3b IPO: soaring profits meet US export threat and high-stakes HBM race

As China’s leading DRAM maker ChangXin Memory Technologies (CXMT) prepares for its expected 29.5 billion yuan (US$4.3 billion) Shanghai Star Market listing, the critical question facing investors is whether the firm can convert its cyclical windfall into permanent industry leadership. The Hefei-based chipmaker enters the market at a uniquely lucrative moment: a global memory shortage driven by surging artificial intelligence computing demand has triggered a massive upcycle in pricing, delivering windfall earnings. In the first quarter, CXMT’s revenue jumped 719 per cent year on year, swinging from a loss of 2.83 billion yuan a year earlier to a net profit of 33 billion yuan. Its average selling prices are now within 5 to 10 per cent of global leaders Samsung Electronics, SK Hynix and Micron Technology, according to estimates by research firm SemiAnalysis. CXMT has started taking orders for its advanced DDR5 server memory products from Tencent Holdings and ByteDance after completing customer validation, according to a person familiar with China’s server memory supply chain, who declined to be named because he was not authorised to speak to the media. The chipmaker’s customer portfolio spans other tech giants including Alibaba Cloud, Lenovo, Xiaomi, Oppo, Vivo, Transsion and Honor, covering sectors from data centres to personal computers and smartphones. Alibaba Cloud is part of Alibaba Group Holding, owner of the South China Morning Post. Amid soaring international component costs, Apple is lobbying Washington for regulatory clearance to buy memory from CXMT, according to recent reports by the Financial Times and Bloomberg. A blockbuster listing at the top of the cycle The validation by hyperscalers highlights a shift in the company’s centre of gravity away from low-power mobile memory (LPDDR) for smartphones towards the highly profitable cloud server and AI data centre ecosystem. Driven by mass production of DDR5 that started at the end of 2024, CXMT’s server-related revenue as a share of its combined memory sales jumped from about 8 per cent in 2024 to over 23 per cent in the first half of 2025. While CXMT still trailed far behind the top three suppliers, it had taken advantage of this momentum to capture an 8 per cent global DRAM market share in the first quarter, up from 3 per cent a year earlier, according to Counterpoint Research data. Operating three 12-inch fabs in Hefei and Beijing, with a capacity that ranks first in China and fourth globally, the company said it expected total capacity to exceed 300,000 wafers per month once current facilities fully ramped up. While anticipation is high for what is set to be one of the largest chip-related initial public offerings (IPOs) in China in recent years, the difficulty in valuing the company highlights the risks for investors. If CXMT issued 10 to 15 per cent of its post-IPO shares to meet its fundraising target, the implied pricing would create a low-end arithmetic valuation floor of around 197 billion yuan, SemiAnalysis said. However, investors were already whispering about a trillion-yuan valuation. This large gap highlights the risks for investors who may be estimating future earnings based on peak-cycle numbers: CXMT’s cost per bit for DDR5 memory remained over 30 per cent higher than its global peers, according to SemiAnalysis. This indicates that its current profit explosion is still driven more by a generous pricing window than by structural cost parity. Beyond pricing volatility, CXMT is also navigating increasingly hostile geopolitical headwinds. Future expansion, which is expected to include more fab capacity in Shanghai, is threatened by US-led export controls such as the proposed Match Act, which would require allied countries to match US curbs on semiconductor equipment exports to China within 150 days. Industry analysts pointed out that the primary risk to CXMT was not only whether it could buy new tools, but also whether imported equipment already installed in China would receive the technical support needed for advanced DRAM production. “The risk is not an instant shutdown, but long-term degradation,” said Leslie Wu, CEO of semiconductor consultancy RHCC, noting that the proposed legislation reflected a shift in US restrictions from equipment sales to the full equipment life cycle. While machines and production lines may remain in place, advanced manufacturing could become harder to stabilise, replicate and commercialise, Wu said. HBM: the hardest test For all its progress in conventional DRAM, high-bandwidth memory remains the clearest test of CXMT’s long-term ambitions. HBM, which stacks DRAM chips to deliver much higher bandwidth, has become a critical component for AI accelerators and one of the most strategically important products in the memory industry. For China, the stakes are especially high. US export controls have limited access to advanced AI chips and related memory products, making domestic HBM one of the missing pieces in Beijing’s AI hardware ambitions. SemiAnalysis said CXMT still faced hurdles in turning HBM into stable commercial supply, noting that it had made progress in its DRAM process technology, but catching global leaders in HBM would require better wafer yields, more mature stacking and more advanced packaging capabilities. The research firm expects CXMT’s HBM wafer capacity to accelerate in 2027 and 2028, reaching 55,000 wafers per month and 100,000 wafers per month, respectively, raising its share of global HBM wafer supply from about 1 per cent in 2025 to 12 per cent in 2028. CXMT has not publicly confirmed HBM mass production, customer certification or yield levels.

Inside CXMT’s US$4.3b IPO: soaring profits meet US export threat and high-stakes HBM race

.css-1c6uqr6{color:inherit;font-weight:inherit;font-size:inherit;font-family:inherit;line-height:inherit;overflow-wrap:break-word;}CXMT is taking orders for its advanced DDR5 server memory from Tencent and ByteDance after completing customer validation, a source says

CXMT is taking orders for its advanced DDR5 server memory from Tencent and ByteDance after completing customer validation, a source says