The US-China Chip War and Supply Chain Fragmentation: Analyzing 2026 Geopolitical Risks [EN]

"Semiconductors have exactly replaced the geopolitical status that crude oil held in the 1970s. The era of Global Value Chains (GVC) maximizing economic efficiency is over, and capital has now entered an era of fragmentation, forced into duplicate investments under the most expensive and violent justification of national security."
  — Chris Miller, Author of 'Chip War'

* The original data and baseline analysis of this macroeconomic shift are available in the Korean report. -> Korean Version

Prologue: A Market Observer's Perspective

This report deconstructs and analyzes 'U.S.-China semiconductor regulations and supply chain restructuring'—the most fatal chokepoint of the 2026 global macroeconomy—not simply as a technological hegemony competition, but as a massive macroeconomic Friction Cost transfer process where economic efficiency is destroyed and a 'National Security Premium' forces Capital Expenditures (CapEx). Over the past 30 years, the semiconductor industry generated cash through a flawless division of labor: U.S. design, South Korean/Taiwanese manufacturing, and Chinese assembly. However, as of [April 2026], export controls and the CHIPS Act have halted these gears. Market participants must fully reallocate their portfolios into Friend-shoring value chains, where capital splits and recombines along geopolitical fault lines.

EXECUTIVE SUMMARY

The global semiconductor ecosystem has transitioned from a 'Just-In-Time' model to a 'Just-In-Case' model driven by security. The U.S. mobilizes its allies to blockade China's access to advanced chips, while China dominates the Mature Node market through dumping backed by state subsidies.

This bloc formation acts as an inflationary factor that permanently raises manufacturing costs. To hedge against TSMC's Taiwan concentration risk, capital is fiercely migrating to Japan's materials, components, and equipment (SME) ecosystem and Southeast Asia's Advanced Packaging (OSAT) infrastructure. The core of investing is tracking when and how the friction costs of this duplicate investment will be transferred into prices.

01. Macroeconomy: The Security Premium and CapEx Duplication

└ The End of Efficiency and Reshoring Inflation

The most critical ripple effect of supply chain restructuring on the macroeconomy is the 'permanent rise in costs.' The operational and labor costs of foundry plants built in Arizona or Texas are 30-50% more expensive than in Taiwan. This 'duplicate CapEx'—forcing the construction of Fabs within developed nations' territories—inevitably leads to higher chip unit prices. This acts as a structural inflationary pressure pushing up the prices of final consumer goods.

└ [Risk Transfer Timeline] The Sequencing of Chip Regulations

Regulatory risks are reflected in asset prices not as single events, but as Sequential Ripples.
* Phase 1 (0-1 Month): Department of Commerce announces tightened export controls. Short-term valuation shocks and concentrated short-selling on specific equipment/design stocks like ASML and Nvidia.
* Phase 2 (3-6 Months): Foundry construction delays and wage spikes in the U.S. materialize. Corporate earnings reports confirm margin impairment due to increased CapEx.
* Phase 3 (6-12 Months): Chip manufacturing unit price hikes begin to be passed onto finished products like AI servers and Electric Vehicles (EVs).
* Phase 4 (Over 1 Year): Quantum jump in earnings for Japanese SME and Southeast Asian OSAT value chains, which structurally benefit from supply chain bifurcation.

02. System Architecture: Fragmentation and Segmentation of Value Chains

└ Chokepoint Blockade and the Counterattack of Legacy

U.S. sanctions surgically strike chokepoints—such as ASML (lithography equipment), Synopsys (EDA), and Nvidia (AI accelerators)—delaying China's advanced technological rise. Conversely, blocked from advanced nodes, China deploys state capital to launch a counterattack, monopolizing the 'Mature Node' semiconductor market (28nm and above). The 'Secondary Tariff War,' where Western nations impose punitive high tariffs on Chinese general-purpose chips, is the macroeconomy's most explosive detonator.

03. Friend-shoring and Alternative Territories for Capital

└ 'Chip 4' Alliance Restructuring and the Structural Renaissance of Japanese SME

Japan is the definitive safe haven for global capital seeking to evade geopolitical risks. Global foundries, led by TSMC, are relocating fabs inland to Japan to diffuse tensions in the Taiwan Strait. Combined with massive subsidies from the Japanese government, this flow gifts enormous free cash flows to Japanese semiconductor materials (photoresists, wafers) and back-end equipment firms, forcing a permanent valuation re-rating.

└ Advanced Packaging and the Rise of Southeast Asia

As Moore's Law faces physical limits, the systemic battlefield has shifted to Advanced Packaging, which combines heterogeneous chips. Southeast Asian countries like Malaysia and Vietnam—buffer zones in the U.S.-China hegemonic conflict—are rapidly emerging as global OSAT hubs, with global capital executing billions of dollars in CapEx in these regions.

04. The Dilemma of Intelligence Capital: Sovereign AI and the Bloc Formation of Compute Hegemony

└ The Paradox of Nvidia Sanctions and the Expansion of Smuggling Networks

Even though the U.S. fully controls the export of Nvidia's latest AI accelerators to China, capital's desire for expansion circumvents policy regulatory nets. Market data indicates that a massive Black Market for H100/B100-class chips entering China via third countries like Singapore and the Middle East is expanding. This creates a paradox of regulation, where sanctions instead skyrocket the chips' black-market premiums by hundreds of percent, handing massive Rent to brokers. A new era of a 'Compute Non-Proliferation Treaty' is being forced, where cloud computing power itself is tracked and controlled as strictly as a nation's nuclear weapons.

└ Sovereign AI Compulsion and the Incineration of R&D Capital

The long-term aftermath of sanctions leads to an independent survival compulsion to escape the technological control of specific nations—namely, the craze to build 'Sovereign AI' infrastructure. China is constructing independent data center clusters centered around the Huawei ecosystem, excluding Western technology. This causes a Galapagosization where global software and hardware ecosystems are mutually incompatible, leading to a swamp of structural Return on Invested Capital (ROIC) impairment as multinational Big Tech firms must double their R&D expenditures to meet two separate market standards.

05. Historical Comparative Analysis: The 1980s US-Japan Semiconductor Agreement vs. The 2026 Asymmetric War

└ The Qualitative Difference between Controlling an Ally and Deterring a Hegemonic Rival

The current semiconductor sanctions are frequently compared to the historical trajectory of the 1980s, when the U.S. thwarted Japan's memory chip rise through the Plaza Accord and the Semiconductor Agreement. However, Japan at that time was a 'military ally' entirely dependent on the U.S. for security, making exchange rate and quota controls possible. In contrast, China in 2026 is a hegemonic rival holding the global supply chain of essential critical minerals (gallium, germanium, rare earths) required for semiconductor manufacturing. Because the subject and target of control hold different weapons, past macro models cannot be simply substituted.

└ The Macro Counterattack of the Weaponization of Resources

If China fully operationalizes an asymmetric resource war by entirely controlling raw material exports in retaliation for semiconductor equipment sanctions, the operation of all semiconductor Fabs in the Western world is threatened. This signifies a dynamic of 'Mutually Assured Destruction (MAD)' within the supply chain, entirely different from the 1980s. Capital investing in the semiconductor value chain must constantly hedge against the additional macroeconomic volatility of mineral inflation in their portfolios.

06. Variables and Limitations of the System Fracture Scenario

└ [Variable 1: Self-Healing] Independence in Custom Silicon Design

The market's powerful self-healing capacity to break through the bottlenecks caused by specific chokepoint monopolies is the direct 'design independence' of hyperscaler Big Tech firms. Pushing back against excessive geopolitical premiums and Nvidia's monopolistic margins, companies like Microsoft, Google, and Meta are pouring massive capital into developing ARM architecture-based Custom Silicon. If this scenario accelerates, it disperses the friction costs concentrated on specific equipment and manufacturers, offsetting the pricing power of monopolies. This can act as a macro counterweight restoring global semiconductor valuation multiples to healthy levels.

└ [Variable 2: Self-Correction via Demand Destruction]

This is the most certain economic brake to halt the seemingly infinitely expanding semiconductor CapEx cycle. When manufacturing cost increases, geopolitical premiums, and grid procurement costs combine to push the 'AI infrastructure construction cost' past the Return on Investment (ROI) threshold, the market stops growing. The moment Big Tech executes 'Demand Destruction'—canceling or delaying data center expansion plans (CapEx Cut) due to deteriorating profitability—the valuations of semiconductor equipment stocks (ASML, AMAT) and foundries will collapse instantly. This is a harsh but inevitable self-correcting mechanism of the macroeconomy preventing geopolitical tensions from pushing asset prices up indefinitely.

Macro Scenario: Probabilistic Future Trajectories

└ Scenario A (Base Case): Sticky Bifurcation of Supply Chains and Tariff Wars (70%)

U.S. controls on advanced equipment and China's dumping of legacy chips become structurally entrenched. To protect domestic industries, the U.S. and Europe escalate into a 'Tariff War,' imposing punitive tariffs on finished products containing Chinese general-purpose chips. This becomes locked in as a permanent upward cost pressure across the global finished goods market.

└ Scenario B (Structural Shift Case): Ignition of the TSMC Geopolitical Detonator (20%)

Trigger: TSMC production lines are physically shut down due to a maritime blockade or localized armed conflict in the Taiwan Strait.
Result: The heartbeat of the global technology value chain stops. Panic selling unfolds, halving the stock prices of Big Tech companies, and the capital market faces the worst 'physical infrastructure paralysis' Black Swan in history. Conversely, companies possessing domestic foundries (Intel) skyrocket temporarily as Meme stocks.

└ Scenario C (Tail Risk Case): Accumulation of CapEx Fatigue and Policy Rollback (10%)

Trigger: Foundry plant construction in the U.S. faces stranding due to cost overruns and labor shortages.
Result: Market skepticism regarding semiconductor subsidy policies spreads. Due to lobbying from equipment companies facing earnings deterioration, export controls on China are quietly de-escalated. Suppressed global efficiency is restored, unfolding an explosive relief rally for equipment stocks.

Implications from an Investor's Perspective

└ Entry Triggers

Timing trades that convert the friction costs of supply chain restructuring into profits are essential.
① [Japanese SME / OSAT]: When headlines highlight concerns over global Big Tech's concentration on TSMC, or when the Yen-Dollar exchange rate stabilizes and the Japanese Nikkei index undergoes a correction, dollar-cost average into Japanese semiconductor SME ETFs and Southeast Asian OSAT-related stocks.
② [Design IP Monopoly Stocks]: The tighter the regulations on advanced nodes, the higher the value of architectural design Intellectual Property (IP). When ARM Holdings or Synopsys (SNPS) drop by more than -10% due to short-term earnings misses, build Long positions that bypass physical friction costs.

└ Exit Conditions

The growth stock premium collapses first when 'Demand Destruction' signals appear.
① [CapEx Cut Signals]: The moment hyperscalers like Microsoft or Google mention 'slowdown in next quarter AI infrastructure CapEx growth' or 'investment delays' during Earnings Calls, mechanically liquidate over 50% of positions related to advanced equipment (ASML, AMAT) and foundries.
② [Policy Reconciliation]: In the first week news breaks of a U.S.-China high-level summit agreement or the extension of export control Waivers for specific equipment, reduce the weight of positions (Japan/Southeast Asia) that were benefiting geopolitically.

Conclusion

The U.S.-China semiconductor hegemony war is not a simple technological rivalry; it is the 'dynamics of redundant investment'—tearing down the macroeconomy's most efficient assembly line maintained for the last 30 years and rebuilding it at an exorbitant cost. The Phase 1 shock from regulatory news inevitably metastasizes into Phase 3 and 4 macro slowdowns defined by chip unit price hikes and demand destruction. Capital is migrating not to the cheapest locations, but to the safest, subsidized Friend-shoring territories. Investors must not judge the morality of the policies; instead, utilizing Big Tech's CapEx cut signals as the ultimate exit trigger, they must execute strictly mechanical long-short strategies among assets laden with security premiums.

※ Disclaimer

This report does not solicit the purchase or sale of any specific assets (including ETFs and individual stocks), nor does it support or criticize any specific country or government. It is a macroscopic system analysis article based on disclosed data and historical indicators. Not all market variables can be predicted, and the responsibility for all judgments and their resulting consequences lies with the investor.

Sources and References

[¹] U.S. Department of Commerce, CHIPS and Science Act Implementation Status (2026.03) — https://www.commerce.gov/programs-and-services

[²] SEMI, World Fab Forecast: China Mature Node Capacity to 42% by 2028 (2026.02) — https://www.semi.org/en/semi-press-release/world-fab-forecast-china-mature-node

[³] PwC, CHIPS Act Fab Construction Costs: US vs Taiwan Comparison (2026.01) — https://www.pwc.com/us/en/library/chips-act.html

[⁴] Reuters, TSMC Arizona Fab Acceleration vs Samsung Texas Delay (2026.04) — https://reuters.com/technology/tsmc-samsung-us-fabs-2026

[⁵] Nikkei Asia, China's SMIC 7nm Yield Reaches 75% Despite US Controls (2026.03) — https://asia.nikkei.com/Business/Tech/SMIC

[⁶] CSIS, Sovereign AI and Export Controls: Non-Proliferation Era (2026.04) — https://www.csis.org/analysis/sovereign-ai

[⁷] Goldman Sachs, Semiconductor CapEx Cycle Amid Geopolitical Friction (2026.01) — https://www.goldmansachs.com/insights/semiconductors