SK hynix Teams Up with TSMC on HBM4E, Betting on 3nm Process

■AI PRISM [Financial Products News] · SK and TSMC Move to Block Samsung's Pursuit · IMF Warns of US Private Credit Risk for Korean Financial Institutions · KODEX Secondary Battery Industry ETF Yields 32.5% Year-to-Date

Technology|
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By Kang Do-won
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null - Seoul Economic Daily Technology News from South Korea

▲AI PRISM* Customized Economic Briefing

*Editor's Note: 'AI PRISM' (Personalized Report & Insight Summarizing Media) is an 'AI-based customized news recommendation and summary service' developed with support from the Korea Press Foundation. It provides six curated news items tailored to each reader type.

[Key Issue Briefing]

■ HBM4 Technology Competition: SK hynix (000660.KS) is strengthening its partnership with TSMC to secure a lead in next-generation high-bandwidth memory (HBM) technology. The plan is to apply TSMC's 3-nanometer process to the base die of HBM4E, slated for mass production next year, doubling power efficiency.

■ Private Credit Risk: The IMF has singled out Korea as the only emerging market country exposed to loan default risks from U.S. non-bank financial institutions (NBFI). Domestic securities firms, insurers, and pension funds have invested more than 60 trillion won ($44 billion) in private credit funds, and the actual exposure is expected to be even larger when unreported holdings are included.

■ Margin Loans at Record High: As the KOSPI recovered the 6,000 level, margin loan balances hit an all-time high of 33.87 trillion won. Concerns are growing that leverage investment will expand further as major brokerages resume credit transactions and small and mid-sized brokerages compete on interest rate cuts.

[News of Interest to Financial Product Investors]

1. "Overtaking Samsung Again"…SK-TSMC Strengthen 'HBM4 Alliance'

- Key Summary: SK hynix plans to enhance its partnership with TSMC, the world's largest foundry (contract chip manufacturer), and apply the 3nm process to the base die of its next-generation HBM4E product. According to TSMC, the 3nm base die offers twice the power efficiency of previous versions, aligning with demand for artificial intelligence (AI) chips that consume significant power. Samsung Electronics (005930.KS) took the lead in February by becoming the first in the world to mass-produce and ship HBM4, but SK hynix has reportedly completed its HBM4 qual (quality certification) redesign and is ready to ship quality products in the second half. Variables include the physical distance between Korea and Taiwan, which requires a three-day one-way sample transfer, and potential 3nm process capacity shortages that may continue into next year.

2. IMF: "Korean Financial Institutions at Risk of Spillover from US Private Credit"

- Key Summary: In its recently released Global Financial Stability Report (GFSR), the IMF singled out Korea as the only emerging market country holding exposure to U.S. non-bank financial institutions (NBFI). NBFIs, also known as shadow banking, typically include insurers, pension funds, and hedge funds. Recently, private credit funds that lend money to companies in new industries such as AI have rapidly expanded their presence. According to the Financial Stability Board, domestic NBFI assets stood at 6,213 trillion won at the end of 2024, approximately 2.4 times nominal GDP, while investments by securities firms, insurers, and pension funds in private credit funds exceeded 60 trillion won. The IMF warned that if stress occurs in U.S. NBFIs, the shock could rapidly spread across borders through credit losses, fund withdrawals, and asset sales, and recommended strengthening NBFI supervision and closing data gaps.

3. Secondary Battery Industry Rebounds on ESS Demand, Yielding 32% Year-to-Date

- Key Summary: The secondary battery industry, which had stalled during the electric vehicle chasm (temporary demand slowdown), is rebounding on the back of expanding demand for energy storage systems (ESS). Samsung Asset Management's KODEX Secondary Battery Industry ETF, with net assets of 2.0413 trillion won, posted a return of 32.5% year-to-date and 72.3% over the past year, attracting 15.1 billion won in retail investor inflows since the start of the year. Samsung SDI signed an ESS prismatic battery supply contract worth approximately 1.5 trillion won with a U.S. energy company, boosting investment expectations, and its shares have risen 82.3% year-to-date. The market views the growth axis of the secondary battery industry as expanding from electric vehicles to ESS, with analysts suggesting that ESS economics could become more prominent if Middle East geopolitical risks and rising oil prices continue.

4. "Catch the Leveraged Investors" – Lower Rates Drive Margin Loans to Record High

- Key Summary: As the KOSPI recovered the 6,000 level and challenged its record high, margin loan balances hit an all-time high of 33.87 trillion won. According to the Korea Financial Investment Association, balances grew evenly across both markets, with 23.43 trillion won in KOSPI and 10.45 trillion won in KOSDAQ. By stock, Samsung Electronics (3.44 trillion won) and SK hynix (2.23 trillion won) held the highest margin balances. Major brokerages resumed credit transactions while small and mid-sized brokerages competed on interest rate cuts, attracting leverage investment demand. In particular, NH Investment & Securities (005940.KS) resumed credit transactions that had been suspended on the 3rd of this month, and Korea Investment & Securities also reopened related services on the 1st. "The share of margin loan interest in brokerage revenue has recently grown larger," a brokerage official said. "Even with lower rates, we can secure interest income, so competition continues."

▶Read the article: "Catch the Leveraged Investors" – Lower Rates Drive Margin Loans to Record High

▶Read the article: Samsung's 300 Trillion Won Operating Profit Driven by Chip Super Cycle, But Union Insists on 580 Million Won 'Lottery Bonus'

null - Seoul Economic Daily Technology News from South Korea
null - Seoul Economic Daily Technology News from South Korea
null - Seoul Economic Daily Technology News from South Korea
null - Seoul Economic Daily Technology News from South Korea
null - Seoul Economic Daily Technology News from South Korea
null - Seoul Economic Daily Technology News from South Korea

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Original reporting by Kang Do-won for Seoul Economic Daily.

AI-translated from Korean. Quotes from foreign sources are based on Korean-language reports and may not reflect exact original wording.

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