Name: China's CXMT Dumping Fear and America's Semiconductor Investment Bill Bomb... K-Semiconductor Sandwich Escape Strategy? | Jeon Byeong-seo, Director
Uploaded: 2026-08-21T08:00:18+00:00
Duration: 1381 s

Speakers

Jeon Byeong-seo — Director

Oh Hyun-jin — Team Lead

Summary

Jeon Byeong-seo argues that Chinese memory maker CXMT is already a genuine threat to Samsung Electronics and SK hynix because it has gained massive capital-market funding and can replace Korean memory in Chinese domestic demand. He says YMTC poses a similar NAND threat due to its advanced 3D stacking technology. He also explains why US pressure on Korea to build memory fabs is election-driven and why Micron cannot profitably manufacture memory in the US.

CXMT's listing and funding surprised the market, briefly making it China's largest market cap and giving it large R&D and capacity firepower.
CXMT already mass-produces HBM2 and DDR5 while closing the technology gap, making commodity DRAM especially vulnerable.
Chinese domestic demand alone can displace Korean memory sales, with the biggest risk seen 2.5-3 years later during a potential memory downturn.
YMTC holds about 14% NAND share and is described as the fastest in 3D stacking, making it a potential CXMT-like shock.
US pressure for Korean memory fab investment is viewed as election politics with low feasibility.
Micron is described as American mainly in brand, with US memory manufacturing structurally unprofitable due to labor and yield issues.

Ideas

Jeon Byeong-seo Director 0:00

Korean memory faces CXMT substitution risk.

Jeon argues CXMT is already a real threat to Samsung Electronics and SK hynix. HBM is only 25-30% of DRAM, while the rest is commodity memory where CXMT is gaining. CXMT's listing raised roughly 12 trillion won, far above the expected 4 trillion won, and it briefly became China's largest market cap around 700 trillion won, surpassing ICBC. This gives CXMT capital-market funding for R&D and capacity. It already mass-produces HBM2, is testing HBM3, and makes DDR5, while China is also developing immersion DUV equipment. Because China is the largest memory consumer and CXMT can substitute domestic demand, Korean memory makers risk losing sales. If CXMT doubles or triples capacity over the next 2.5-3 years just as memory enters a downcycle, Korean memory faces falling prices and market share losses.

Jeon Byeong-seo Director 4:04

CXMT is a funded memory champion.

CXMT has moved from government support to large-scale capital-market funding, making it a structurally stronger memory competitor. Its IPO raised far more than expected, its market capitalization reached about 700 trillion won and briefly surpassed ICBC, and because the Chinese government still holds a high stake it can sell 10-20% more shares without losing control. This gives CXMT powerful R&D and capacity-expansion firepower. Its technology is also catching up quickly: HBM2 is already in mass production, HBM3 is being tested, DDR5 is being produced, and China is developing immersion DUV lithography equipment. Jeon sees CXMT as a clear Chinese memory winner and serious threat to incumbents over the next 3-5 years.

Jeon Byeong-seo Director 15:57

YMTC leads NAND stacking, serious threat.

YMTC is a similarly serious NAND threat, arguably stronger than CXMT is in DRAM. YMTC already holds about 14% of the NAND market, higher than CXMT's roughly 8% DRAM share. Its edge is in ultra-high-layer NAND and 3D stacking/package technology; Jeon says YMTC is the fastest at stacking and can compete with Western firms. As NAND moves toward 400+, 600+, or even 1,000 layers, that 3D stacking advantage becomes structural. He expects YMTC's listing to deliver a CXMT-like shock to Korean memory names.

Jeon Byeong-seo Director 19:35

Micron's US fab is structurally unprofitable.

Micron is not a realistic US memory-manufacturing champion. Jeon says memory production left the US decades ago and Micron is American only in name and brand while actual production is mainly in Japan and Taiwan. A US fab is structurally unprofitable because memory requires 24/7 shift work, but once per-capita income exceeds roughly $25,000 shift industries struggle, and US incomes are around $83,000-90,000. The US also lacks the skilled workers and yield culture needed. Therefore, forcing US memory production via Micron is economically unviable and is being used as political leverage on Korea.

China's CXMT Dumping Fear and America's Semiconductor Investment Bill Bomb... K-Semiconductor Sandwich Escape Strategy? | Jeon Byeong-seo, Director

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