CXMT’s reported HBM3E plan targets limited production

Reports published on October 28, 2026 said ChangXin Memory Technologies (CXMT) planned limited production of HBM3E within the following two months. The Japan Times attributed the plan to two people familiar with the matter, so the timing was a forecast rather than a production milestone.

What the reported yield estimate says

Reuters-attributed reports put CXMT’s estimated usable yield for HBM3E at 20% to 30%. Yield is the share of production that can be used as a finished product; the reported estimate describes usable output, not a chip’s performance level.

Samples were sent for evaluation

CXMT had reportedly sent HBM3E samples to domestic AI-chip designers for preliminary evaluation. DiarioBitcoin named T-Head, Alibaba’s chip unit, and Cambricon among the recipients.

Why HBM matters to AI processors

HBM, or high-bandwidth memory, stacks memory chips vertically to move data rapidly to AI processors. Reports framed CXMT’s plan amid constraints in China’s supply of advanced AI memory.