THE ESSENTIALS IN 30 SECONDS

  • YMTC's parent CCSH filed in August to raise 33 billion yuan (about $4.9 billion) on Shanghai's STAR Market; an internal memo seen by Reuters says the process is paused.
  • Sources told Reuters the delay could last months, with a listing now expected in the first half of 2027 depending on markets.
  • The STAR50 index fell about 40% from its July peak to the end of October, and sources say regulators informally told banks to slow AI and chip IPOs.

Yangtze Memory Technologies (YMTC), China's largest maker of NAND flash memory, has paused its planned initial public offering in Shanghai, Reuters reported on November 4, citing an internal memo and people familiar with the plan. The memo to staff gave only "various factors" as the reason. Neither YMTC nor China's securities regulator responded to Reuters' requests for comment.

A large listing stalls

The listing vehicle, YMTC's parent CCSH, applied in August to raise 33 billion yuan, about $4.9 billion, on the STAR Market, Shanghai's board for technology companies. At the time, the exchange said the offering would be among the largest in the market's history. It came after recent STAR listings by DRAM maker ChangXin Memory Technologies (CXMT) and robot maker Unitree.

According to Reuters, a placement of shares with strategic investors had been scheduled for late October and early November and is now suspended. Two sources said the pause could last several months and that a listing in the first half of 2027 is now the target, subject to market conditions. BusinessKorea reports that 20.8 billion yuan of the proceeds was earmarked for production line upgrades and 12.2 billion yuan for research and development.

Markets and regulators

Reuters links the decision to a weak stock market and tighter scrutiny of new share sales. The CSI300 index lost 8.5% in October, its worst month in more than a decade, while the STAR50, which tracks Shanghai-listed chip and AI firms, fell about 40% between its July peak and the end of October. Four sources told Reuters that the China Securities Regulatory Commission had informally asked investment banks to slow IPOs by AI and chip companies. The Financial Times separately reported that banks were told to hold off on listings until markets recover; Reuters said it had not confirmed that account.

Where AI demand fits in

NAND chips store data in phones, PCs and data centres. Reuters notes that YMTC grew quickly during the global memory shortage that began last year, winning Chinese market share from Samsung and SK Hynix, and that the delay could disrupt its capacity expansion. BusinessKorea adds that YMTC is pushing into enterprise SSDs for AI data centres and cites Counterpoint Research estimates giving it 14% of global NAND bit shipments in the second quarter, behind Samsung and SK Hynix.

The outlook is not uniformly favourable. BusinessKorea cites TrendForce expecting NAND prices to come under pressure from the second half of 2027 as new capacity arrives, a bigger risk for a company that depends entirely on NAND. How long the listing freeze lasts will depend on market conditions and on Beijing's pace of approvals.