China Accelerates Memory Chip Offensive, Challenging South Korea's HBM Dominance

As Samsung Electronics and SK Hynix focus on high-bandwidth memory (HBM), a key product in the artificial intelligence era, Chinese companies are making inroads into the general DRAM and NAND flash markets to expand their market share.

Recently, China's leading memory firms, Changxin Memory Technologies (CXMT) and Yangtze Memory Technologies Co. (YMTC), have initiated initial public offerings (IPOs) to secure funding, signaling a serious commitment to developing next-generation memory technologies, including HBM. Some analysts suggest that the technology gap between South Korea and China in high-performance memory semiconductors has narrowed to between three to five years.

According to industry sources, CXMT, China's largest DRAM manufacturer, and NAND flash producer YMTC are currently pursuing stock market listings to raise capital for expanding production capacity and investing in R&D for next-generation memory.

CXMT recently passed IPO review by the Shanghai Stock Exchange and is in the final stages of the registration approval process, aiming to complete its listing soon. The company plans to raise 29.5 billion yuan (approximately $4.5 billion), marking the second-largest IPO since the 2020 listing of Semiconductor Manufacturing International Corporation (SMIC).

CXMT has increased its global DRAM market share to about 8%, positioning itself as the fourth-largest player, effectively challenging the dominant trio of Samsung, SK Hynix, and Micron. The company's first-quarter revenue reached 50.8 billion yuan (approximately $7.4 billion), a staggering 719% increase from the previous year, driven by the localization policies of Chinese smartphone manufacturers and aggressive pricing strategies.

YMTC is also enhancing its presence in the NAND market, having developed 200-layer and higher 3D NAND flash technology, targeting the solid-state drive (SSD) and mobile storage markets. Despite U.S. export restrictions, the company is leveraging substantial domestic demand to boost its technological competitiveness and is preparing for its own IPO within the year.

Following their IPOs, both companies are expected to intensify their efforts in HBM development. They plan to allocate the funds raised to R&D in premium memory sectors essential for AI infrastructure. Reports indicate that the Chinese government has urged CXMT to significantly enhance its HBM production capabilities, with plans to commence mass production of HBM3 within the year.

Analysts predict that Chinese memory firms could catch up to South Korea's HBM technology within three years, given China's vast financial resources and significant investments in R&D. The strategy of scaling production in the general DRAM and NAND markets to establish a profitable foundation before entering the high-performance memory sector is becoming a reality.

Ahm Ki-hyun, executive director of the Korea Semiconductor Industry Association, stated, "Chinese memory companies are likely to reach a level similar to that of Samsung and SK Hynix in HBM technology within three to five years," adding that the technology gap between South Korea and China is gradually closing. He emphasized that while China has an unrestricted environment for research and development, South Korea faces limitations under labor laws, suggesting that a more conducive environment for R&D is necessary in South Korea.