27 former Samsung and SK Hynix engineers depart China's CXMT (ChangXin Memory) after average 2.9-year tenure; signals potential talent drain from indigenous Chinese DRAM/HBM fabs.
At least 27 semiconductor specialists with an average of more than 15 years of experience at Samsung Electronics and SK Hynix have moved to China's memory maker CXMT, only to leave the company after an average of just 2.9 years. Critics argue that China is systematically extracting decades of accumulated technical know-how and then releasing these personnel, accelerating its semiconductor catch-up efforts.
According to data released by Rep. Choi Su-jin of South Korea's ruling People Power Party, who sits on the National Assembly's Science, ICT, Broadcasting and Communications Committee, a comprehensive review of LinkedIn and other business platforms confirmed that 27 former Samsung Electronics and SK Hynix employees had moved to CXMT. Among them were six senior executives who had led mass production for more than 20 years. Their combined tenure at these South Korean companies totals 415.9 years, averaging 15.4 years per person.
The group's functional composition is striking: eight circuit designers, seven process integration specialists, four unit process and equipment engineers, four yield and defect analysis experts, and two advanced packaging specialists. Observers note this composition is sufficient to operate an entire semiconductor fab from inception.
CXMT has expanded its recruiting beyond commodity DRAM to include High Bandwidth Memory (HBM) design and TSV-related advanced packaging personnel—areas where Samsung Electronics and SK Hynix dominate globally. HBM is essential for AI accelerators.
Of the 27 individuals, 26 have already left CXMT, raising questions about whether the company extracted core technology during fab setup and process stabilization before terminating contracts. Rep. Choi noted evidence of indirect transfers designed to circumvent non-compete agreements, which typically last one to two years. Fifteen individuals (56%) took intermediate positions at equipment and materials suppliers, foreign companies, or as university research professors after leaving South Korean employers. Seven later moved to other Chinese semiconductor firms, including Huawei's Hong Kong research institute and HiSilicon.
Chinese headhunters reportedly offered these individuals salaries ranging from 60% to as much as double their previous compensation, coupled with three-to-five-year employment guarantees, housing, and children's education subsidies. CXMT's R&D workforce surged 2.9-fold from 2,606 at the end of 2022 to 7,491 by June this year—far outpacing SK Hynix's domestic research staff growth of 12.7% over the same period. Three of CXMT's five key technical personnel disclosed in its investor prospectus are identified as former Samsung Electronics and Micron employees.
CXMT's market presence has grown dramatically. Three years ago, it held virtually no DRAM market share. By the second quarter of this year, it had climbed to approximately 12%, visibly cracking the global DRAM market structure long dominated by Samsung Electronics and SK Hynix.
Sungkyunkwan University professor Ahn Yu-hwa discussed the implications on the YouTube channel "The Man Who Reads the Economy" (520,000 subscribers). He emphasized that China's abundant pool of advanced technical talent makes the country unlikely to collapse competitively. "In the global AI scientist rankings, there are 20,000 in the United States and 80,000 in China," Ahn said. "Of the 20,000 in the U.S., 10,000 are people who completed their undergraduate studies in China and then changed their nationality to American." He added, "It would actually be strange if China were not leading in advanced science."
Ahn characterized China's localization strategy as transcending simple price competition. "If they competed fairly in the global market, people wouldn't buy Chinese products due to unit cost and quality issues, but China is going all-in on localization," he explained, noting that domestic tech giants such as Alibaba and Xiaomi absorb production volumes. Initial quality deficiencies naturally improve through sustained transactions, he argued.
Structural differences in corporate compensation emerged as a critical factor in talent competitiveness. "Chinese people like receiving stock in high-tech companies, but in South Korea, people refuse stock and demand cash," Ahn noted. "That's where the game changes." When engineers hold equity, they become company owners and work with sustained commitment, he explained. When employees receive cash compensation, companies and labor unions naturally develop opposing interests, limiting competitive development.
Professor Kim Kwang-seok, moderating the discussion, voiced agreement, stating, "This is not the time to debate being pro-China, anti-China, or pro-America. We need to think about where the global situation is heading and where the opportunities lie." He added, "The old economy that drove China's past growth, such as real estate, is in a very difficult situation, but the new economy centered on advanced industries is leading China's growth while threatening the global economy. We need to recognize the threat from the new economy and think about countermeasures."
The South Korean government has stated there is "no legal basis to regulate or restrict overseas companies' legitimate recruitment and headhunting," taking no separate investigations or enforcement actions. Meanwhile, the U.S. Department of Defense has listed CXMT on its "Section 1260H" registry of Chinese military companies since 2025, citing military-civil fusion strategy concerns. Rep. Choi criticized the absence of a government budget for a "talent outflow prevention program," despite annual expenditures in the hundreds of billions of won on semiconductor workforce training.
"Semiconductor technology is not just about blueprints—it is the experience and know-how that people accumulate over 20 to 30 years," Rep. Choi said. "We need to build a national-level tracking system to monitor and manage the movement of core personnel, and prepare extraordinary compensation and re-employment incentives so that talent can exercise their capabilities domestically."
CXMT's surging R&D headcount and the short tenures of South Korean personnel suggest that China's semiconductor catch-up strategy has evolved beyond simple talent recruitment into a systematic technology absorption model. South Korea's semiconductor industry competitiveness is now being tested not only by technology gaps but also by talent retention and compensation systems.