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Fact-check summary

Reuters reported CXMT's limited HBM3E production plans and 20% to 30% yields, citing two people familiar. Other outlets trace to Reuters.

1 caveat
  • ▲CXMT did not respond to Reuters. The start date and volume are not confirmed.
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via Reuters

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Home/Tech/CXMT reportedly to start HBM3E output despite 20-30% yields
VERIFIEDBy Xavier Rivera·Thursday, October 29, 2026 at 6:20 AM AST·1 min read

CXMT reportedly to start HBM3E output despite 20-30% yields

China's CXMT plans to begin limited HBM3E production within about two months despite yields of only 20% to 30%, Reuters reported Oct 28, citing two people familiar. It has sampled HBM3E to domestic AI chip designers, versus roughly 70% yields at SK Hynix, the sources said. CXMT did not respond to Reuters.

Source:Reuters
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CXMT reportedly to start HBM3E output despite 20-30% yields
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TL;DRAI · 60 sec read

China's CXMT plans to start limited HBM3E production within about two months, Reuters reported, citing two people familiar. The sources put its yields at 20% to 30%, versus roughly 70% at SK Hynix. CXMT did not respond to Reuters.

China's ChangXin Memory Technologies (CXMT) plans to begin limited production of HBM3E memory within about two months, Reuters reported on Oct. 28, citing two people familiar with the matter. The Information first reported the plans.

Low yields. CXMT's HBM3E yields are only 20% to 30%, the sources told Reuters. SK Hynix gets roughly 70%, they said.
CXMT's HBM3E yields are only 20% to 30%, the sources told Reuters.

Samples are out. CXMT has sent HBM3E samples to Chinese AI chip designers, according to the sources. One source said the chips perform closer to SK Hynix's older HBM3.
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Why now. The move comes amid US curbs on access to foreign-made technology and a shortage of AI memory, Reuters reported.

What is not known. The exact start date and output volume have not been reported. CXMT did not respond to a request for comment from Reuters.
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Sources: Reuters (via StreetInsider); TrendForce; The Next Web; DigiTimes
Why this mattersAI · ~100 words

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