US-F-07: US–China Strategic Decoupling — Export Controls, Outbound Investment Screening, and the Small-Yard High-Fence Doctrine (2022–2026)

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1. Key Takeaways

The 7 October 2022 BIS Interim Final Rule is the inflection point of US–China economic statecraft. The 86-page rule (87 FR 62186) abandoned the prior decade's incremental Entity-List approach and imposed three categorically new architectural elements: (i) item-based controls on advanced computing chips (new ECCNs 3A090 and 4A090) and semiconductor manufacturing equipment (ECCN 3B090) defined by performance thresholds rather than end-user identity; (ii) a Foreign Direct Product Rule (FDPR) extension reaching foreign-produced items made with US technology destined for advanced-node fabrication in China; and (iii) a US-Persons rule under §744.6 prohibiting Americans, including green-card holders, from supporting Chinese advanced-node fabrication absent a licence. Commerce Under Secretary for Industry and Security Alan F. Estevez and Assistant Secretary Thea D. Rozman Kendler designed the rule to be country-targeted, capability-targeted, and persistence-targeted — a structural break with the WTO-era universalist trade regime that the Biden administration had inherited.
The "small yard, high fence" doctrine articulated by National Security Advisor Jake Sullivan on 27 April 2023 at the Brookings Institution provided the conceptual scaffolding for the export-control regime and its outbound-investment companion. Sullivan's speech, titled Renewing American Economic Leadership, repudiated the post-Cold-War "Washington Consensus" assumption that economic integration would produce political convergence with China and argued instead for a "new Washington consensus" combining industrial policy at home, allied coordination abroad, and narrowly targeted technology restrictions on a "small yard" of foundational national-security technologies guarded by a "high fence" of multilateral export controls. The doctrine attempted to distinguish "de-risking" from "decoupling" — a distinction shared with the May 2023 G7 Hiroshima communiqué and the European Commission's Economic Security Strategy — but the operational reach of the October 2022 and October 2023 rules meant the small yard expanded continuously through 2024.
Executive Order 14105 of 9 August 2023 and the Treasury Final Rule of 28 October 2024 created the first systematic US outbound-investment screening regime, complementing the inbound CFIUS architecture. EO 14105 directed Treasury to promulgate regulations covering US-person investments in Chinese semiconductors and microelectronics, quantum information technologies, and certain artificial intelligence systems. The Final Rule (31 CFR Part 850), issued by Treasury Assistant Secretary for Investment Security Paul Rosen, distinguished "prohibited transactions" from "notifiable transactions," covered both greenfield and brownfield equity investments, debt financing convertible to equity, joint ventures, and certain LP positions in covered funds, and excluded passive portfolio investments below thresholds. The regime took effect 2 January 2025, completing the architecture of bilateral capital and technology containment.
The CHIPS and Science Act of August 2022 paired the export-control regime with an industrial-policy positive incentive. The Act appropriated $52.7 billion for semiconductor manufacturing incentives, R&D, and workforce development. Section 103 imposed "guardrails" prohibiting recipients from materially expanding advanced-node semiconductor manufacturing capacity in countries of concern (defined to include China, Russia, Iran, and North Korea) for ten years following the award. Through April 2024 the Commerce CHIPS Program Office under Director Michael Schmidt announced Preliminary Memoranda of Terms with Intel ($8.5 billion direct funding plus $11 billion in loans, 20 March 2024), TSMC Arizona ($6.6 billion plus $5 billion loans, 8 April 2024), Samsung Austin–Taylor ($6.4 billion, 15 April 2024), and Micron ($6.1 billion, 25 April 2024). The combination of negative (export-control) and positive (CHIPS-funding) instruments distinguished the 2022–2025 architecture from the Trump-1 tariff-only approach of 2018–2019.
Allied coordination with the Netherlands and Japan converted the unilateral US export-control regime into a trilateral capability-denial architecture, but Korea's hesitation revealed the limits of the small-yard coalition. On 8 March 2023, Dutch Minister Liesje Schreinemacher notified the Tweede Kamer of country-specific controls on ASML deep-ultraviolet (DUV) immersion lithography systems including the TWINSCAN NXT:2050i and NXT:2100i, effective 1 September 2023 — a measure negotiated bilaterally with Washington at the late-January 2023 Biden–Rutte summit. Japan's METI under Minister Nishimura Yasutoshi promulgated Cabinet Order No. 252 on 23 May 2023, effective 23 July 2023, adding 23 categories of advanced semiconductor manufacturing equipment to the FEFTA export control list. South Korea, despite participating in the Biden-era "Chip 4" alliance discussions, declined to impose parallel China-specific controls, citing Samsung's and SK Hynix's NAND and DRAM exposure at Xi'an and Wuxi respectively. The Korean position revealed that the small-yard coalition was effectively a US–Netherlands–Japan trilateral rather than a multilateral architecture.
The October 2023 BIS update plugged the September 2022 Nvidia A800/H800 workaround and introduced the "performance density" metric, but the technological cat-and-mouse dynamic accelerated. When the October 2022 rule was promulgated, Nvidia immediately designed the A800 and H800 China-specific variants that fell below the interconnect-bandwidth thresholds of the original rule while preserving most compute capability. The 17 October 2023 update (88 FR 73424) replaced the bandwidth-only metric with a combined "performance density" formula incorporating total processing performance (TPP) and performance density, capturing the A800/H800/L40S variants and adding High Bandwidth Memory (HBM) controls reflecting the criticality of HBM2/HBM3 for AI training. Nvidia subsequently designed the H20 (released November 2023) targeting the China market under the new thresholds; the H20 itself was restricted in April 2025 under Trump-2, requiring a presidential licence and triggering a reported $5.5 billion Nvidia inventory write-down.
Chinese countermeasures evolved from rhetorical protest to a structured retaliation architecture leveraging critical-minerals dependencies and the 2021 Anti-Foreign Sanctions Law. MOFCOM Announcements 46 and 47 of 3 July 2023, effective 1 August 2023, imposed export licensing on gallium and germanium and related compounds — minerals for which China commands roughly 98% (gallium) and 60% (germanium) of global refined production. Announcement 39 of 3 December 2024 extended controls to antimony and superhard materials with parallel sanctions on specified US defence firms. Announcement 17 of 4 April 2025 imposed export controls on medium and heavy rare earths (samarium, gadolinium, terbium, dysprosium, lutetium, scandium, yttrium) — categories essential to defence permanent magnets, jet-engine alloys, and laser systems. The cumulative effect placed approximately 38–42 critical minerals under Chinese export licensing by mid-2025, with reported licence-approval rates falling sharply for US defence-end-use applications.
The "effectiveness debate" sharpened around three case studies: SMIC's 7nm production via DUV multi-patterning, the August 2023 Huawei Mate 60 Pro launch, and the Huawei Ascend 910B/910C AI accelerator progression. SMIC's production of the Huawei Kirin 9000S processor on what TechInsights characterised as a "7nm-class" node (the N+2 process) demonstrated that DUV immersion lithography combined with quadruple patterning could reach sub-10nm geometries without extreme-ultraviolet (EUV) tools — the export of which to China had been blocked since 2019. The Ascend 910B (volume production from late 2023) and the Ascend 910C (Q4 2024 production ramp) progressively closed the performance gap with Nvidia's H100/H200 line, though yield and HBM supply remained binding constraints. Critics including former Commerce officials Kevin Wolf and Emily Kilcrease argued that the export-control regime was being incrementally outmanoeuvred; defenders including Gregory Allen at CSIS argued that yield, scale, and cost constraints continued to bind even where capability had been replicated at low volume.
The January 2025 AI Diffusion Rule and its April 2025 rescission marked the Biden-to-Trump-2 transition's first major export-control inflection. The Framework for Artificial Intelligence Diffusion Interim Final Rule (90 FR 4544, published 15 January 2025) created a three-tier country regime allocating compute-export quotas — Tier 1 (18 allied countries with no quotas), Tier 2 (most other countries with capped quotas), and Tier 3 (D:5 list embargoed countries). The rule, issued in the Biden administration's final week, was designed to manage the global diffusion of advanced AI compute by chip-equivalent metrics. The Trump-2 BIS under Commerce Secretary Howard Lutnick rescinded the rule on 13 May 2025, citing concerns about both the bureaucratic complexity of country quotas and the diplomatic damage to Tier-2 partners (Israel, Mexico, India, Singapore, Switzerland). The rescission signalled the Trump-2 preference for bilateral deal-making over multilateral compute allocation, though the underlying chip-level controls remained in place.
The 12 May 2025 Geneva US–China Joint Economic and Trade Meeting Statement marked the first formal de-escalation framework of the Trump-2 trade war, but the export-control architecture was preserved. Following the April 2025 reciprocal tariff escalation peaking at 145% on Chinese imports and 125% on US exports, Treasury Secretary Scott Bessent, USTR Jamieson Greer, MOFCOM Minister Wang Wentao, and Vice Premier He Lifeng met in Geneva on 10–11 May 2025 and produced a Joint Statement on 12 May agreeing to a 90-day suspension of the reciprocal escalation, reducing US tariffs on Chinese imports to roughly 30% and Chinese tariffs on US imports to roughly 10%, while preserving the underlying Section 301 and IEEPA tariff baselines. Critically, the Geneva framework was explicitly limited to tariff escalation and did not address the BIS export controls, the Treasury outbound-investment rules, or the CHIPS Act guardrails, signalling Trump-2 acceptance of the Biden-era technology-containment architecture even while dismantling the AI Diffusion Rule.
The Trump-2 Section 232 semiconductor investigation initiated in April 2025 by Commerce Secretary Lutnick added a tariff layer to the existing export-control regime. Under Section 232 of the Trade Expansion Act of 1962, Commerce opened a national-security investigation into semiconductor imports, with a statutory 270-day reporting deadline placing the determination in January 2026. The investigation covered both finished semiconductors and downstream products containing semiconductors (servers, automobiles, smartphones, medical devices), creating substantial ambiguity for the Korean, Taiwanese, and European semiconductor industries. The Section 232 architecture differs from IEEPA in being statutorily grounded and harder to challenge in court — relevant to the V.O.S. Selections and Princess Awesome litigation trajectory documented in US-D-09 and US-D-10.
The cumulative 2022–2026 architecture represents a structural reordering of the US–China economic relationship, distinct from the 2018–2019 trade war's tariff focus. The October 2022 export controls, the August 2023 outbound-investment EO, the CHIPS Act guardrails, the allied coordination architecture, and the 2025 Section 232 layer together constitute what Henry Farrell and Abraham Newman characterised as a "weaponised interdependence" regime — leveraging chokepoints in the global semiconductor supply chain (US design tools, US/Dutch/Japanese equipment, Taiwanese fabrication) to constrain Chinese technological advance. The architecture has bipartisan support — the Biden export-control regime was preserved and extended under Trump-2 — and is structurally embedded in CHIPS Act recipient agreements, Treasury regulations, and bilateral memoranda with allies. Future research must track three trajectories: the Chinese self-sufficiency response (SMIC, YMTC, CXMT capacity buildouts), the allied-coordination resilience (Dutch, Japanese, Korean political-economic pressures), and the technological-effectiveness question (yield curves, HBM supply, EUV alternatives).

2. From "Engage and Hedge" to "Compete and Decouple" — the Long Antecedents (2001–2022)

The 7 October 2022 BIS rule did not appear ex nihilo. It is the culmination of a two-decade transformation in US–China economic statecraft, traceable from the December 2001 Chinese accession to the World Trade Organization through the 2018–2019 Trump-1 Section 301 tariff war, the May 2019 Huawei Entity List designation, the August 2020 Foreign Direct Product Rule extension, and the August 2022 CHIPS and Science Act. Understanding the October 2022 rule requires placing it within this longer trajectory.

The Clinton-era logic that produced China's WTO accession — articulated most influentially by President Bill Clinton's 8 March 2000 Johns Hopkins SAIS speech arguing that "by joining the WTO, China is not simply agreeing to import more of our products; it is agreeing to import one of democracy's most cherished values, economic freedom" — assumed a convergence dynamic: market access would generate middle-class formation, middle-class formation would generate political pluralism, and political pluralism would moderate the Chinese Communist Party's external posture. The 2001–2008 period appeared to validate this logic in narrow economic terms (Chinese GDP grew from approximately $1.34 trillion in 2001 to $4.6 trillion in 2008) while complicating it politically (the 2008 Beijing Olympics, the global financial crisis, and the 2009 Charter 08 crackdown).

The Obama-era posture, articulated in the 2011 Asia Pivot under Secretary of State Hillary Clinton and National Security Advisor Tom Donilon, attempted to combine engagement (the September 2015 Xi Jinping state visit, the bilateral cyber-espionage agreement) with hedging (the Trans-Pacific Partnership negotiations through 2016). This posture was already under strain by 2014, when the 19 May 2014 Department of Justice indictment of five PLA Unit 61398 officers under Attorney General Eric Holder marked the first US criminal indictment of foreign state actors for economic espionage. The 2015 Cybersecurity Information Sharing Act and the 2018 Foreign Investment Risk Review Modernization Act (FIRRMA, Pub. L. 115-232) — strengthening CFIUS authorities — were both responses to the perceived inadequacy of WTO-era rules to address state-directed technology transfer.

The Trump-1 inflection from 2017 onward was conceptually significant but operationally limited in semiconductor terms. The August 2017 USTR Section 301 investigation into Chinese intellectual-property practices under USTR Robert Lighthizer led to the July 2018 imposition of tariffs on $34 billion of Chinese imports (List 1), the August 2018 List 2 ($16 billion), the September 2018 List 3 ($200 billion), and the May 2019 List 4A ($300 billion). The tariffs were broad-based industrial inputs and consumer goods, not technology-targeted. The May 2019 Entity List designation of Huawei Technologies Co. Ltd. and 68 affiliates by BIS — followed by the August 2020 Foreign Direct Product Rule extension reaching foreign-produced chips made with US technology destined for Huawei — was the genuinely architectural break, demonstrating that BIS could project extraterritorial reach through the FDPR mechanism. The August 2020 rule effectively cut Huawei off from TSMC's leading-edge fabrication, forcing the November 2020 sale of the Honor smartphone subsidiary.

The Biden administration arrived in January 2021 inheriting both the Trump-1 tariff architecture (which it largely preserved through the May 2024 strategic review under USTR Katherine Tai) and the Huawei FDPR precedent. Three institutional developments through 2021–2022 reshaped the policy frame. First, the February 2021 Interim National Security Strategic Guidance under National Security Advisor Jake Sullivan identified China as "the only competitor potentially capable of combining its economic, diplomatic, military, and technological power to mount a sustained challenge to a stable and open international system." Second, the June 2021 White House Supply Chain Review (Executive Order 14017) identified semiconductors, large-capacity batteries, critical minerals, and pharmaceuticals as the four most vulnerable supply-chain categories, with a 250-page semiconductor report identifying chokepoints in EUV lithography (ASML), advanced-node logic (TSMC, Samsung), and memory (Samsung, SK Hynix, Micron). Third, the September 2021 Quad Leaders' Summit and the September 2022 Chip 4 Alliance discussions framed semiconductor supply-chain resilience as a multilateral coordination problem.

The August 2022 CHIPS and Science Act and the parallel August 2022 Inflation Reduction Act (Pub. L. 117-169) — both signed by President Biden within weeks — together represented the largest US industrial-policy intervention since the New Deal. The CHIPS Act appropriated $52.7 billion in semiconductor incentives (including $39 billion for manufacturing, $11 billion for R&D, and $2 billion for legacy chips and defence applications) plus a 25% advanced manufacturing investment tax credit under Section 48D of the Internal Revenue Code. Section 103 imposed the "China guardrails" prohibiting recipients from materially expanding advanced-node manufacturing in countries of concern for ten years, with limited exceptions for "legacy" chips at nodes 28nm and older. The CHIPS Act was bipartisan in passage (the Senate vote on 27 July 2022 was 64–33, with 17 Republicans joining; the House vote on 28 July 2022 was 243–187, with 24 Republicans joining), reflecting the convergence of national-security hawks, industrial-policy advocates, and constituency interests in semiconductor manufacturing states (Arizona, Ohio, Texas, New York).

The intellectual context for the October 2022 rule was shaped by three publications. First, Chris Miller's Chip War: The Fight for the World's Most Critical Technology (Scribner, October 2022) — published within weeks of the BIS rule — provided the popular framing of semiconductors as the central object of US–China strategic competition. Second, Gregory Allen's 11 October 2022 CSIS analysis Choking Off China's Access to the Future of AI — published four days after the rule — provided the most influential immediate exposition of the rule's logic. Third, the work of Henry Farrell and Abraham Newman on "weaponised interdependence" (the 2019 International Security article and the 2023 Underground Empire book) provided the theoretical frame within which the rule's chokepoint logic was understood.

The Chinese-side antecedents are documented in CN-D-01 (Common Prosperity and the 2020s Economic Pivot). The "dual circulation" framework articulated by Xi Jinping at the May 2020 Politburo Standing Committee and formalised at the October 2020 Fifth Plenum of the 19th Central Committee — emphasising domestic demand and technological self-sufficiency as the "main body" with international circulation as supplementary — anticipated the bilateral decoupling logic by approximately two years. The "Made in China 2025" plan (May 2015) and the National Integrated Circuit Industry Development Promotion Outline (June 2014) had set semiconductor self-sufficiency targets that, by 2022, had been only partially met (China imported approximately $415 billion of semiconductors in 2021, against domestic production of approximately $50 billion of indigenously fabricated chips). The Big Fund (formally the National Integrated Circuit Industry Investment Fund), capitalised at approximately ¥139 billion in Phase 1 (2014) and ¥204 billion in Phase 2 (2019), was the principal Chinese state vehicle for semiconductor investment, supplemented by provincial funds in Beijing, Shanghai, Shenzhen, and Hefei.

3. The 7 October 2022 BIS Interim Final Rule — Architecture and Operation

The 7 October 2022 BIS Interim Final Rule (87 FR 62186, formally titled Implementation of Additional Export Controls: Certain Advanced Computing and Semiconductor Manufacturing Items; Supercomputer and Semiconductor End Use; Entity List Modification) is, in its 86-page text, the single most consequential US export-control document of the 21st century to date. Its drafting was led by BIS Under Secretary Alan F. Estevez (confirmed February 2022), Assistant Secretary for Export Administration Thea D. Rozman Kendler, and Deputy Assistant Secretary Matthew S. Borman, with inter-agency coordination led by NSC Senior Director for Technology and National Security Tarun Chhabra and Deputy National Security Advisor for International Economics Daleep Singh. The rule was previewed by Sullivan in his September 2022 Special Competitive Studies Project speech in which he stated that the United States must maintain "as large of a lead as possible" in foundational technologies — a departure from the prior "relative advantage" framing.

The rule operated through five distinct architectural elements. First, item-based controls on advanced computing chips through two new Export Control Classification Numbers: ECCN 3A090 covering integrated circuits with either (i) interconnect bandwidth of 600 GB/s or higher and (ii) any aggregate computational performance of 4800 TOPS or higher in fixed-point or 4800 TFLOPS in floating-point operations; and ECCN 4A090 covering computers, electronic assemblies, and components containing ECCN 3A090 chips. The thresholds were calibrated to capture Nvidia's A100 and H100 GPUs, AMD's MI250 line, and Intel's Habana Gaudi accelerators, while leaving consumer-grade GPUs (GeForce RTX series) outside scope. Sales of 3A090 items to China required a licence under a presumption-of-denial policy.

Second, item-based controls on semiconductor manufacturing equipment through ECCN 3B090 covering specified deposition, etch, lithography, and metrology tools required for advanced-node logic (defined as 16/14nm FinFET or below), advanced-node DRAM (18nm half-pitch or below), and advanced NAND (128 layers or above). The 3B090 list captured tools produced by Applied Materials (deposition), Lam Research (etch), KLA Corporation (metrology), and indirectly the foreign tools subject to the FDPR. The rule also imposed end-use controls under §744.23 prohibiting the export to China of any item — regardless of US content — for use in the development or production of advanced-node logic at 16/14nm or below, DRAM at 18nm or below, or NAND at 128 layers or above.

Third, the Foreign Direct Product Rule (FDPR) extensions under new §734.9(h) and (i) reached foreign-produced items that are the direct product of US-origin technology or software classified under specified categories, where the foreign-produced item is destined for end use in Chinese advanced-node semiconductor fabrication. This extended the August 2020 Huawei-specific FDPR precedent to a country-and-end-use basis, dramatically expanding extraterritorial reach. ASML's DUV immersion tools, while not produced in the United States, contain US components and software subject to the FDPR; the 2022 rule provided the legal basis for the subsequent March 2023 Dutch coordination measures.

Fourth, the US-Persons rule under §744.6 prohibited "US persons" — defined to include US citizens, permanent residents, persons in the United States, and US-incorporated entities — from "supporting" the development or production of advanced-node semiconductors at Chinese facilities, including by providing services, advice, or labour. The rule had immediate workforce effects: KLA, Lam Research, and Applied Materials withdrew US-citizen and green-card-holder personnel from Chinese fabs (notably YMTC's Wuhan facility) within weeks. Industry estimated that several hundred US-citizen engineers exited China-based semiconductor roles between October 2022 and January 2023.

Fifth, Entity List modifications added 28 entities including Yangtze Memory Technologies Corporation (YMTC), ChangXin Memory Technologies (CXMT, the former Innotron), and a series of computing-cluster and HPC entities. The YMTC designation was particularly consequential — YMTC had been a putative Apple NAND supplier for the iPhone, and the designation effectively terminated that prospective relationship. The Entity List additions operated under a presumption of denial for all licence applications.

The rule's effective dates were staggered. Item-based controls on chips and equipment were effective immediately (7 October 2022). The US-Persons rule was effective 12 October 2022. The FDPR extensions for advanced-node logic and DRAM had a 21 October 2022 effective date. The rule was designated an "Interim Final Rule" — taking effect immediately while soliciting public comment — under the Export Control Reform Act of 2018 (ECRA, 50 U.S.C. §4801 et seq.) authorities.

Three jurisdictional and operational features distinguished the rule from prior export-control instruments. First, its country focus was explicitly China and Macao (with Hong Kong covered by the July 2020 Hong Kong reclassification), with a separate "destination" framework that anticipated extension to additional jurisdictions of concern. Second, its capability focus was the high-performance computing and AI training stack, not the broader semiconductor industry — leaving legacy and trailing-edge nodes (28nm and above) largely outside scope. Third, its persistence focus — through the FDPR and US-Persons rules — was designed to be circumvention-resistant in ways that the 2018–2019 Section 301 tariffs and the 2019 Huawei Entity List designation had not been.

The immediate industry response was significant equity-market repricing. Within five trading days of the rule, ASML lost approximately 7% of market capitalisation, Applied Materials approximately 12%, Lam Research approximately 15%, and KLA approximately 13%. Nvidia, having received specific licence flexibility for its data-centre A100 inventory and design pipeline, declined less sharply. SIA President John Neuffer issued a 7 October 2022 statement supporting "narrowly targeted" export controls but expressing concern about "overly broad" reach affecting the global commercial market. The Chinese MOFCOM statement of 8 October 2022 condemned the rule as "trade protectionism in the name of national security" and reserved the right to "take corresponding measures."

4. The 17 October 2023 Update — Performance Density, HBM, and the Workaround Problem

The October 2022 rule's thresholds — interconnect bandwidth (600 GB/s) and total processing performance (4800 TOPS) — created an immediate engineering arbitrage. Within approximately six weeks of the rule's promulgation, Nvidia announced the A800 (3 November 2022) and subsequently the H800 (March 2023) — China-specific variants of the A100 and H100 that reduced interconnect bandwidth to 400 GB/s while preserving most computational throughput. The A800 and H800 became substantial revenue items for Nvidia in fiscal-year 2023, with Chinese hyperscalers (Alibaba, Tencent, Baidu, ByteDance) building AI training clusters from the variants. Industry estimates placed Nvidia's China-specific data-centre revenue at approximately $5–6 billion in 2023.

The BIS response, formalised in the 17 October 2023 Interim Final Rule (88 FR 73424, effective 17 November 2023 for most provisions), restructured the underlying capability metric. The new ECCN 3A090.a covered chips with TPP of 4800 or higher; ECCN 3A090.b covered chips with TPP between 1600 and 4800 plus performance density of 5.92 TFLOPS/mm² or higher. The performance-density formula — derived from TPP divided by die area in square millimetres — captured the A800/H800/L40S architectures that had preserved compute while reducing communication bandwidth, since reducing interconnect speed does not reduce die-level computational density. The October 2023 update also introduced a "yellow flag" notification regime under §742.6(a)(6) for chips falling just below the thresholds, requiring exporters to notify BIS even where licences were not required.

The October 2023 update added High Bandwidth Memory (HBM) controls, recognising that HBM2/HBM3/HBM3E stacks had become the binding supply constraint for AI training systems. HBM3E was at the time produced only by Samsung Memory and SK Hynix (with Micron entering production in early 2024). The HBM control architecture was completed in the 2 December 2024 BIS rule (89 FR 96790) imposing FDPR-based restrictions on HBM exports to China where the HBM was destined for end use in Chinese advanced-computing applications. The HBM rule was a coordinated US–Korean measure, since the principal HBM producers were Korean firms; Samsung and SK Hynix had to recalibrate their China customer relationships, particularly with Huawei's HiSilicon design subsidiary.

The October 2023 update expanded the country scope beyond China and Macao, adding a list of approximately 40 additional countries deemed at risk of diversion — including the Middle Eastern jurisdictions of the United Arab Emirates and Saudi Arabia. This addition responded to credible intelligence that Chinese entities were sourcing controlled chips through Gulf intermediaries, particularly through Abu Dhabi's G42 technology group. The country-scope expansion was politically contentious, generating sharp objections from UAE and Saudi officials and producing protracted bilateral negotiations through 2024 leading to the May 2024 G42–Microsoft strategic partnership and the September 2024 G42 BIS conditional commitments requiring G42 to divest Chinese-firm equipment and personnel.

The October 2023 update also expanded Entity List designations, adding 21 entities including Biren Technology, Moore Threads, and additional HPC and AI-chip-design entities. The Biren and Moore Threads designations targeted Chinese GPU start-ups that had emerged in 2021–2022 with the explicit goal of producing China-domiciled alternatives to Nvidia data-centre GPUs. Biren's BR100 chip, produced at TSMC on a 7nm process, was reportedly cancelled following the designation; Moore Threads pivoted to lower-performance consumer and graphics applications.

The drafting process for the October 2023 update was significantly more contested inter-agency than the October 2022 rule. Industry consultation under Section 1758 of the Export Control Reform Act and the BIS Technical Advisory Committees produced extensive comment from SIA, ASML, Nvidia, AMD, Intel, Applied Materials, Lam Research, and KLA. The comments converged on three concerns: that the "yellow flag" notification regime created compliance burdens disproportionate to security benefits; that the performance-density formula could capture certain general-purpose CPUs (a concern eventually addressed by exclusionary language); and that the country-scope expansion risked diplomatic damage with allied jurisdictions. The 17 October 2023 final text incorporated some industry concerns but preserved the core architecture.

The Nvidia H20 chip — released in November 2023 specifically for the China market — was designed to fall below the October 2023 rule's thresholds while preserving inference and lower-end training capability. The H20 used the Hopper architecture with reduced TPP (approximately 296 TFLOPS in FP16 versus the H100's roughly 989 TFLOPS) and reduced HBM3 capacity, achieving compliance with the October 2023 thresholds. The H20 was a substantial commercial success through 2024, with Chinese hyperscalers ordering reportedly over one million units. The H20 itself was then restricted by the Trump-2 BIS in April 2025 (discussed in §9), demonstrating the iterative nature of the cat-and-mouse dynamic.

The cumulative effect of the October 2022 and October 2023 rules — together with the December 2024 HBM controls and the various Entity List expansions — was to establish a multi-layered architecture of:

Item-based controls (3A090, 3B090) on chips and equipment by capability threshold;
End-use controls (§744.23) on any item destined for Chinese advanced-node fabrication;
End-user controls (Entity List) on specific named entities;
Foreign Direct Product Rule extensions reaching foreign-produced items made with US technology;
US-Persons controls under §744.6 on personnel and services;
HBM-specific controls reaching the memory supply layer;
Country-scope provisions covering jurisdictions deemed at diversion risk.

This seven-layer architecture is the operational substance of "small yard, high fence" — the policy doctrine to which the next section turns.

5. The "Small Yard, High Fence" Doctrine — Sullivan's Brookings Speech and the New Washington Consensus

National Security Advisor Jake Sullivan's 27 April 2023 Brookings Institution speech, Renewing American Economic Leadership, was the most consequential articulation of US economic-security doctrine since the post-Cold War "Washington Consensus" itself. Delivered in the John L. Thornton China Center room at Brookings before an audience of approximately 200 invited foreign-policy specialists and Treasury, Commerce, and USTR officials, the speech ran approximately 6,800 words and was followed by a moderated Q&A with then-Brookings President John Allen. The text was vetted through the NSC inter-agency process, with Treasury Secretary Janet Yellen, Commerce Secretary Gina Raimondo, USTR Katherine Tai, and CEA Chair Lael Brainard providing input.

Sullivan's central argument was that the post-1989 consensus assumption that "the type of growth did not matter" — i.e., that any growth in any country would produce favourable spillovers — was empirically falsified by three decades of evidence. He identified four challenges: (i) the hollowing of the US industrial base, (ii) the emergence of "a new environment defined by geopolitical and security competition," (iii) the climate crisis, and (iv) "the challenge of inequality and its damage to democracy." Each generated a policy response: a "modern industrial and innovation strategy" (the CHIPS Act, IRA), economic-security tools (export controls, outbound investment screening), the clean-energy transition, and middle-out economic policy.

The "small yard, high fence" formulation appeared in the speech's discussion of technology policy. Sullivan stated: "We have implemented carefully tailored restrictions on the most advanced semiconductor technology exports to China. Those restrictions are premised on straightforward national-security concerns. ... As Secretary Raimondo has said, these technology export controls will remain a 'small yard, high fence.' These are not built around trade advantages or to suppress China's economic and technological modernisation. They are narrowly focused on technology that could tilt the military balance." The formulation echoed Raimondo's prior usage and, before her, the original "small yard, high fence" framing from a 2018 Foreign Affairs essay by Robert D. Blackwill and Ashley J. Tellis — though the operational reach of the October 2022 rule was significantly broader than Blackwill and Tellis had contemplated.

Sullivan's most operationally significant move was the explicit repudiation of the trade-liberalisation framework. He stated that "the previous approach to trade policy ... left us with hollowed-out industrial bases" and argued that "trade policy needs to be fully integrated into our economic strategy, both at home and abroad." This was, in policy terms, the burial of the WTO-centric framework that had structured US trade policy from 1995 through approximately 2017. The speech's reception was substantial: Larry Summers and Adam Posen criticised it as protectionism in liberal garb; Robert E. Lighthizer and Jared Bernstein endorsed it from different ideological positions; Ezra Klein and Noah Smith debated it in their commentaries through May 2023.

The "de-risking, not decoupling" distinction was articulated in parallel by European Commission President Ursula von der Leyen in her 30 March 2023 Mercator Institute speech and reaffirmed in the May 2023 G7 Hiroshima Leaders' Communiqué (¶48), which stated: "We are not decoupling or turning inwards. At the same time, we recognize that economic resilience requires de-risking and diversifying. ... A growing China that plays by international rules would be of global interest." The G7 formulation gave US doctrine multilateral validation while preserving rhetorical space distinguishing the US approach from comprehensive decoupling.

In practice, however, "small yard, high fence" was operationally elastic. The October 2022 rule had captured an estimated $5–8 billion in immediate semiconductor-trade flows; the October 2023 update expanded that figure; the December 2024 HBM controls added the memory layer; the January 2025 AI Diffusion Rule (subsequently rescinded) attempted to expand the regime globally; the Trump-2 Section 232 investigation of April 2025 expanded into downstream products. By mid-2025 the "small yard" included advanced computing chips, advanced semiconductor equipment, HBM, quantum-information products, certain AI systems, biotechnology equipment (BIS January 2025 proposal), and connected vehicle components (Commerce ICTS rule September 2024). Critics from CSIS (Allen) and CNAS (Kilcrease) argued that the small yard was, in effect, expanding into the medium yard.

The doctrinal coherence question — whether "de-risking" is meaningfully distinct from "decoupling" in the semiconductor sector — was the subject of considerable Track-II debate through 2023–2025. The most influential affirmative case was made by Bonnie Glaser, David Shullman, Andrew J. Nathan, and others arguing that the rule preserved Chinese access to mature-node semiconductors (which constitute approximately 70% of global semiconductor consumption) while restricting only the most advanced AI-and-supercomputing applications. The most influential negative case was made by Joseph S. Nye, John Mearsheimer (from different premises), and a cluster of Chinese-side analysts at the Renmin University Chongyang Institute and Tsinghua's Center for International Strategy and Security arguing that the architectural breadth of the FDPR and the cumulative effect of the layered controls amounted to a containment posture functionally indistinguishable from comprehensive decoupling in the high-technology sector.

The Chinese-side interpretation, articulated most influentially in Foreign Minister Wang Yi's March 2024 Two Sessions press conference and in MOFCOM Minister Wang Wentao's repeated statements, was that the United States had abandoned market principles and was attempting "technological hegemony" to suppress Chinese development. The Chinese position framed the rule as evidence that engagement-era promises were never sincere and that strategic autarky in technology was the necessary response — a frame congruent with the dual-circulation strategy and the deepening of the "new whole-nation system for science and technology" articulated in the 14th Five-Year Plan.

6. The CHIPS Act Implementation — Awards, Guardrails, and the Foreign-Fab Question

The CHIPS and Science Act of August 2022 paired the export-control regime with a positive industrial-policy incentive. The $52.7 billion in semiconductor incentives was administered by the Commerce Department's CHIPS Program Office (CPO) under Director Michael Schmidt, with Deputy Director Todd Fisher overseeing the manufacturing incentives programme and Chief Investment Officer Kevin Sullivan overseeing the financial structuring. The CPO was established under Commerce's National Institute of Standards and Technology (NIST) and operated with substantial autonomy from the Department's other trade and export-control functions.

The first Notice of Funding Opportunity (NOFO) for commercial fabrication facilities was issued 28 February 2023, requiring applicants to submit detailed financial projections, workforce plans, environmental reviews, and "national security agreements" addressing technology protection, supply-chain security, and China-expansion guardrails. The application process involved a multi-stage review: preliminary memorandum of terms (PMT), due diligence, definitive agreement, and disbursement milestones. The CPO conducted environmental impact reviews under NEPA, workforce-development assessments, and supply-chain mapping for each applicant.

The major awards announced in 2024 were:

Intel Corporation (PMT 20 March 2024): $8.5 billion direct funding plus up to $11 billion in loans, supporting Intel's $100+ billion investment plan covering Chandler (Arizona) Fab 52 and 62, New Albany (Ohio) Fabs 27 and 28, Hillsboro (Oregon) D1X expansion, and Rio Rancho (New Mexico) Fab 9 modernisation. The Intel award was the largest single CHIPS Act commitment and was central to Intel CEO Pat Gelsinger's IDM 2.0 foundry strategy. Following Gelsinger's November 2024 departure and Intel's reported financial difficulties, the award structure required restructuring; under new CEO Lip-Bu Tan (appointed March 2025), Intel announced delays to the New Albany Ohio fab opening to 2030 or later.
TSMC Arizona (PMT 8 April 2024): $6.6 billion direct funding plus up to $5 billion in loans, supporting the Phoenix (Arizona) Fab 21 module 1 (4nm, production began Q4 2024), module 2 (3nm, production from approximately 2027–2028), and module 3 (2nm, production from approximately 2030). TSMC committed to an additional $25 billion investment in March 2025 under Trump-2 pressure, bringing total Arizona commitment to approximately $165 billion (covered in TW-D-03). The TSMC NSA included particularly stringent China-expansion guardrails covering both TSMC's Nanjing 28nm fab (the only TSMC mainland-China facility) and the broader TSMC corporate-level capacity.
Samsung Austin / Taylor (PMT 15 April 2024): $6.4 billion direct funding, supporting the Taylor (Texas) Fab 2 (2nm and 4nm), R&D facility, and advanced packaging. Samsung's NSA addressed the company's Xi'an NAND facility — the largest single NAND fab in China — and the company's broader China memory exposure.
Micron Technology (PMT 25 April 2024): $6.1 billion direct funding, supporting the Clay (New York) Fab Phase 1 (DRAM, scheduled 2028 production start) and the Boise (Idaho) Fab expansion. Micron's NSA was particularly significant because the company had been the subject of an April 2023 Chinese Cyberspace Administration of China (CAC) cybersecurity review producing a May 2023 ban on Micron products in Chinese critical-infrastructure procurement — making Micron the most politically prominent US semiconductor casualty of US–China decoupling.
GlobalFoundries (PMT 19 February 2024): $1.5 billion supporting the Malta (New York) and Burlington (Vermont) facilities, focused on mature-node and specialty applications.
BAE Systems (PMT December 2023): $35 million for the Manchester (New Hampshire) facility, supporting defence-specific mature-node production.
Microchip Technology, Polar Semiconductor, and other smaller awards for mature-node and speciality applications.

The Section 103 guardrail architecture operated through three mechanisms. First, the ten-year prohibition on material expansion of advanced-node semiconductor capacity in countries of concern. "Material expansion" was defined by Commerce in the March 2023 NOFO as more than 5% expansion of advanced-node wafer-start capacity at existing facilities, with absolute prohibitions on new facility construction. "Advanced node" was defined as 28nm logic, 18nm DRAM, and 128-layer NAND. Second, joint research and licensing prohibitions preventing recipients from engaging with specified "foreign entities of concern." Third, clawback provisions authorising Commerce to recoup funding plus interest where violations occurred.

The guardrails created acute strategic dilemmas for the foreign-fab recipients. TSMC's Nanjing 28nm fab was at the threshold of the "advanced node" definition; TSMC negotiated specific carve-outs allowing existing capacity to operate but not to expand. Samsung's Xi'an NAND facility was at 128-layer or below technology in October 2022 and faced a more acute constraint — Samsung negotiated a one-year general authorisation (extended through 2024, then converted to a "validated end user" status in October 2023) allowing continued operation while complying with the broader export-control regime. SK Hynix's Wuxi DRAM facility faced similar treatment. The Korean fabs collectively constituted the largest non-Chinese semiconductor manufacturing presence in mainland China, and the guardrail architecture had to be calibrated to avoid forcing precipitous Korean industrial losses.

The 21 September 2023 BIS rule creating a "Validated End User" (VEU) status for the Korean fabs — applicable to Samsung's Xi'an facility and SK Hynix's Wuxi facility — was a significant Korean-side negotiation success, allowing operation without case-by-case licensing. The VEU status preserved Korean access to the China memory market while subjecting the Korean firms to enhanced monitoring and reporting. The VEU was politically contentious in Washington, with several China hawks (Senator John Cornyn, Representative Mike Gallagher) criticising the carve-out as inconsistent with the broader regime. The VEU framework was nonetheless preserved by the Trump-2 administration through 2025.

The CHIPS Act implementation also faced significant cost-overrun and timeline challenges. The Intel Ohio fab, originally targeted for 2025 production, was delayed first to 2026, then to 2027, then to 2030 or later. TSMC Arizona experienced workforce frictions documented in extensive 2023–2024 reporting (the September 2023 announcement of a one-year delay to module 1 due to a "shortage of skilled workers"). Samsung Taylor was delayed by approximately one year. These delays created political vulnerability for the CHIPS Act, with critics arguing that the administrative complexity of the NOFOs and the workforce constraints (particularly the shortage of US-trained semiconductor engineers) limited the programme's effectiveness. The Trump-2 administration's posture toward CHIPS Act funding — discussed in §9 — became a significant 2025 policy question.

7. Allied Coordination — Netherlands, Japan, Korea, and the Limits of the Trilateral

The October 2022 BIS rule, in its initial form, was a unilateral US measure. Its operational reach over Dutch and Japanese semiconductor manufacturing equipment exports depended on either (i) the Foreign Direct Product Rule applying to foreign-produced items made with US technology, or (ii) parallel measures by the Netherlands and Japan applying their domestic export-control authorities to the same equipment categories. The FDPR mechanism was legally available but politically and operationally inferior to parallel domestic measures, both because FDPR enforcement against foreign firms generates diplomatic friction and because the burden of compliance falls more naturally on national authorities than on extraterritorial US enforcement.

The Netherlands negotiation process began with the December 2022 meeting between Dutch Prime Minister Mark Rutte and President Biden, and continued through bilateral working-level negotiations led by Dutch Minister for Foreign Trade Liesje Schreinemacher and US Deputy National Security Advisor Daleep Singh. The negotiations culminated in the 8 March 2023 Schreinemacher letter to the Tweede Kamer announcing "country-specific export controls on advanced semiconductor manufacturing equipment." The Dutch measure took the form of an amendment to the Regeling van de Minister voor Buitenlandse Handel en Ontwikkelingssamenwerking (the Strategic Goods Decree), effective 1 September 2023.

The Dutch measure covered ASML's TWINSCAN NXT:2050i and NXT:2100i deep-ultraviolet (DUV) immersion lithography systems — the most advanced DUV systems below the extreme-ultraviolet (EUV) threshold, capable of producing approximately 7nm and below logic through multi-patterning. The export of these systems to China required a Dutch government export licence under a presumption-of-denial policy. The measure deliberately excluded older DUV systems (NXT:1980i and earlier) on which Chinese fabs had been built, preserving Chinese access to legacy and trailing-edge equipment while restricting the most advanced. EUV systems (TWINSCAN NXE series) had been blocked since approximately 2019 by ASML's voluntary commitments and Dutch government coordination — the 2023 measure formalised that earlier arrangement.

The Dutch coordination was structurally consequential because ASML is the sole global producer of EUV lithography systems and one of the few producers of leading-edge DUV systems. The October 2022 BIS rule had attempted to extend FDPR-based restrictions to ASML's exports through US-component pathways, but the political-diplomatic cost of unilateral extraterritoriality led the Biden administration to prioritise the negotiated Dutch parallel measure. ASML CEO Peter Wennink — and his successor Christophe Fouquet (from April 2024) — publicly expressed reservations about the controls' effects on ASML's commercial business, while complying with the regulatory architecture. ASML's China revenue, having risen sharply in the months before the Dutch measure took effect (Chinese customers placing pre-restriction orders), then declined as the controls bound; ASML disclosed in Q3 2024 earnings that approximately 20% of its 2024 backlog was Chinese, down from earlier peaks.

The Japanese negotiation took a different form. The Japanese government had been concerned about telegraphing China-specific measures that could trigger Chinese economic retaliation against Japan; instead, the METI under Minister Nishimura Yasutoshi formulated the measure as a "general" export-control extension applicable to all destinations but practically targeting China. The Cabinet Order No. 252 of 23 May 2023, effective 23 July 2023, added 23 categories of advanced semiconductor manufacturing equipment to the FEFTA export control list. The 23 categories covered deposition, etch, lithography, cleaning, and testing equipment produced principally by Tokyo Electron, Screen Holdings, Advantest, Hitachi High-Tech, and Kokusai Electric.

The Japanese formulation was carefully calibrated to avoid explicit China-targeting language, with METI press releases describing the measure as "responding to changes in the international situation" rather than as a China-specific control. This rhetorical strategy was designed to preserve Japan's broader Sino-Japanese economic relationship and to position the measure within the Wassenaar Arrangement multilateral export-control framework rather than as a discrete bilateral coordination with Washington. The Chinese MOFCOM response of 23 May 2023 nonetheless treated the measure as a China-targeted control, with Foreign Minister Qin Gang summoning the Japanese Ambassador to express "serious concern."

The Korean negotiation produced a more limited outcome. South Korea, despite participating in the Chip 4 Alliance discussions through 2022–2023, declined to impose parallel export controls on semiconductor manufacturing equipment to China. Korean Industry Minister Lee Chang-yang's January 2023 statements emphasised that "Korea will determine its policies based on national interest" — read as a refusal to align unilaterally with US measures. The Korean position was driven by three considerations: (i) the substantial Samsung Xi'an and SK Hynix Wuxi memory-manufacturing presence in China, which made Korean firms acutely vulnerable to Chinese retaliation; (ii) Korean concerns that Chip 4 would expose Korean firms to US extraterritorial reach without commensurate strategic benefit; and (iii) the Yoon Suk-yeol administration's broader effort to balance the US alliance against Korean commercial interests. The Korean position was politically congruent with the Validated End User architecture (§6) — Korea accepted the VEU framework allowing existing fab operations while declining to impose equipment-export controls.

The trilateral architecture (US–Netherlands–Japan) was formalised in the August 2023 Camp David summit between President Biden, Japanese Prime Minister Kishida Fumio, and South Korean President Yoon Suk-yeol, which produced general references to "economic security" and "supply chain resilience" without specific export-control commitments. The April 2024 White House summit between Biden and Kishida produced more specific semiconductor-cooperation language. The trilateral was deepened through 2024 through Quad (US–Japan–India–Australia) and AUKUS (US–UK–Australia) technology-cooperation frameworks, though semiconductor export controls remained primarily a trilateral matter.

The European Commission's Economic Security Package of January 2024 — comprising a regulation on outbound investment screening, an updated FDI screening regulation, a dual-use export-control proposal, and a research-security measure — represented the EU-side institutional response. The proposals faced significant intra-EU contestation, with the Netherlands and Germany supporting more interventionist measures and France pursuing the "autonomie stratégique" framing. The EU package was substantially watered down in Council negotiations through 2024 and the dual-use export-control proposal was effectively shelved by mid-2025.

The allied-coordination architecture revealed structural limits. The Dutch and Japanese parallel measures covered approximately 80–85% of the relevant non-US semiconductor manufacturing equipment by value, but residual categories — Korean and Taiwanese metrology and process tools, certain Chinese-indigenous tools at lower performance levels — remained outside the architecture. The lack of an EU-wide regime meant that German, French, and Italian dual-use exporters operated under heterogeneous national rules. And the architecture depended on continuing political alignment between Washington, The Hague, and Tokyo — an alignment that was tested by the political transitions of Schoof-Wilders in the Netherlands (July 2024), the Ishiba succession in Japan (October 2024), and the Trump-2 inauguration in Washington (January 2025).

8. Outbound Investment Screening — EO 14105 and the Treasury Final Rule

The second pillar of the 2022–2025 architecture — outbound investment screening — emerged on a slower timeline than the export-control regime, reflecting both the legal-architecture complexity of regulating US capital outflows and the political contestation over the appropriate scope of restrictions. The intellectual origins traced to 2018–2019 Congressional proposals (the Foreign Investment Risk Review Modernization Act process produced an initial outbound-screening discussion that was deferred), to the 2020 Senate-Republican-led "Endless Frontier" proposals, and to the 2021 bipartisan National Critical Capabilities Defense Act introduced by Senators Bob Casey (D-PA) and John Cornyn (R-TX) and Representatives Rosa DeLauro (D-CT) and Michael McCaul (R-TX).

The political dynamics through 2022 favoured legislative action — the Endless Frontier Act and the United States Innovation and Competition Act (USICA) included outbound-investment-screening provisions — but the final CHIPS and Science Act compromise dropped the outbound provisions. President Biden's response was to develop the regime through executive authority, drawing on the International Emergency Economic Powers Act (IEEPA, 50 U.S.C. §1701 et seq.) authorities that supported existing sanctions programmes administered by the Treasury Office of Foreign Assets Control (OFAC).

Executive Order 14105 of 9 August 2023 — Addressing United States Investments in Certain National Security Technologies and Products in Countries of Concern — invoked IEEPA, the National Emergencies Act, and Section 301 of Title 3 of the United States Code. The EO declared a national emergency with respect to "the rapid advancement in sensitive technologies and products in countries of concern" and directed the Treasury Secretary to issue regulations prohibiting certain US-person transactions and requiring notification of others. The covered technologies were three: semiconductors and microelectronics; quantum information technologies; and artificial intelligence systems. The covered "country of concern" was, in the initial annex, the People's Republic of China (including Hong Kong and Macao).

The EO was issued under the signature of Assistant to the President for National Security Affairs Jake Sullivan and Treasury Assistant Secretary for Investment Security Paul Rosen. The companion Advance Notice of Proposed Rulemaking (ANPRM) was issued the same day (9 August 2023, 88 FR 54961) soliciting public comment on the scope and structure of the regulations. The ANPRM identified two transaction categories: "prohibited transactions" — those that would be flatly forbidden — and "notifiable transactions" — those that would require submission of information to Treasury but would not be blocked.

The drafting of the implementing regulations occupied approximately 14 months. Treasury received over 500 comment submissions during the ANPRM process and a subsequent Notice of Proposed Rulemaking (NPRM) issued in June 2024 (89 FR 55846). Industry groups (SIA, the National Venture Capital Association, the Securities Industry and Financial Markets Association, the American Council of Life Insurers) argued for narrow scope, clear definitions, and minimal compliance burden. National-security commentators (CNAS Emily Kilcrease, CSIS Emily Benson, the Hoover Institution's Glenn Tiffert) argued for broader scope and aggressive enforcement. Within the administration, Treasury and State favoured narrower scope; Commerce and the NSC favoured broader; the final compromise represented a working balance.

The Final Rule (31 CFR Part 850), issued 28 October 2024 (89 FR 90398) and effective 2 January 2025, established the operational regime. The covered transactions were:

Prohibited transactions: US-person investments in PRC entities engaged in (i) the development of electronic design automation (EDA) software; (ii) the development or production of certain advanced semiconductor manufacturing equipment; (iii) the design, fabrication, or packaging of advanced integrated circuits (defined by performance and geometry thresholds aligned with the BIS 3A090 framework); (iv) the development or production of certain quantum-information-technology products; or (v) the development of AI systems "designed exclusively for, or which are intended to be used for" specified end-use categories including military, intelligence, mass surveillance, or cybersecurity applications.
Notifiable transactions: US-person investments in PRC entities engaged in (i) development or production of non-advanced semiconductor categories above specified thresholds; (ii) development of AI systems trained using a specified quantity of computing power (initially set at 10^25 floating-point operations of training compute, later harmonised with the BIS AI Diffusion Rule thresholds before that rule's rescission).

The covered transaction types included acquisition of equity interests (greenfield and brownfield), debt financing convertible to equity, joint ventures, and certain limited-partnership commitments in covered funds. Passive portfolio investments below specified thresholds (initially 10% equity in publicly traded entities, subject to additional conditions on board representation and rights) were excluded. The rule's "knowledge" standard required US persons to undertake reasonable due diligence regarding investees' activities; "reason to know" standards applied to certain categories.

The Final Rule established two enforcement mechanisms: civil penalties under IEEPA (up to approximately $377,700 per violation, indexed for inflation) and criminal penalties (up to $1 million and 20 years imprisonment for wilful violations). Treasury's Office of Investment Security under Assistant Secretary Rosen administered the regime, with enforcement coordination with the Department of Justice National Security Division.

The Final Rule's scope was significantly narrower than the most aggressive proposals during the ANPRM/NPRM process. Notable narrowings included: (i) the exclusion of biotechnology and clean energy from the covered technology list, despite proposals to include both; (ii) the use of notification rather than prohibition for non-advanced semiconductor and general AI investments; (iii) the carve-outs for passive portfolio investments and publicly traded securities; (iv) the exclusion of follow-on investments in pre-existing positions; and (v) the geographic limitation to PRC (including Hong Kong and Macao) without extension to additional jurisdictions of concern. These narrowings reflected industry pressure (particularly from the NVCA and SIFMA) and inter-agency negotiation favouring Treasury's tendency toward narrowly targeted measures.

The Rhodium Group's "Two-Way Street" tracker documented the empirical context within which the regime operated. US venture capital and private equity investment in Chinese technology companies had peaked in 2018 at approximately $32 billion and declined sharply through 2022 (approximately $9.7 billion) and 2023 (approximately $4.7 billion). By the time the Final Rule took effect in January 2025, the empirical volume of covered transactions was a fraction of the 2018 peak — limiting the rule's near-term economic impact while establishing the legal architecture for prospective enforcement. Critics argued that the rule was "closing the barn door after the horses had bolted"; defenders argued that the architecture's value lay in deterring future flows during prospective Chinese technology booms.

The Trump-2 administration's posture toward the outbound investment regime was, on net, supportive. The Trump-2 Treasury under Secretary Scott Bessent preserved the Final Rule's operational architecture and signalled in February 2025 intentions to expand the regime's coverage. Trump-2 statements from National Economic Council Director Kevin Hassett and from the President himself emphasised that "American capital should not be financing Chinese military capabilities" — a frame congruent with the Biden-era logic. The June 2025 "America First Investment Policy" memorandum (discussed in §9) extended the architectural direction further.

9. Trump-2 Escalation, Recalibration, and the Geneva Framework

The Trump-2 administration that took office on 20 January 2025 inherited the Biden-era export-control and outbound-investment architecture and, contrary to widespread expectations of disruption, preserved its core elements while adding additional layers. The trade-and-economic-security team — Treasury Secretary Scott Bessent (confirmed 27 January 2025), Commerce Secretary Howard Lutnick (confirmed 18 February 2025), USTR Jamieson Greer (confirmed 26 February 2025), NEC Director Kevin Hassett, Trade and Manufacturing Advisor Peter Navarro, and Senior Counselor for Trade Robert Lighthizer (informal role) — combined the Trump-1 protectionist current (Navarro, Lighthizer) with the financial-markets and supply-chain currents (Bessent, Hassett) in a way that produced both escalation and recalibration in different policy domains.

The first major Trump-2 export-control inflection was the rescission of the AI Diffusion Rule. The Framework for Artificial Intelligence Diffusion Interim Final Rule (90 FR 4544, published 15 January 2025 by the outgoing Biden BIS, effective 15 May 2025) had been designed to manage the global diffusion of advanced compute by creating a three-tier country regime: Tier 1 (18 allied countries with no compute-export quotas including Australia, Belgium, Canada, Denmark, Finland, France, Germany, Ireland, Italy, Japan, Netherlands, New Zealand, Norway, Korea, Spain, Sweden, Taiwan, and the United Kingdom); Tier 2 (most other countries with annual compute-export caps generally set at 50,000 H100-equivalents); and Tier 3 (the D:5 list of embargoed countries — China, Russia, Iran, North Korea, Cuba, Venezuela, Syria, Belarus, and others). The rule also imposed Validated End User and Universal Validated End User (UVEU) frameworks for cloud providers and AI compute hosts.

The AI Diffusion Rule generated immediate diplomatic backlash from Tier 2 countries — Israel, Mexico, India, Saudi Arabia, UAE, Switzerland, Singapore, and Brazil prominent among them — arguing that the country-quota framework treated established US partners as unreliable. Industry — Nvidia (most visibly through CEO Jensen Huang's public statements), Oracle, Microsoft, Google Cloud, AWS — argued that the bureaucratic complexity would damage US cloud-export competitiveness. The Trump-2 BIS under Commerce Secretary Lutnick rescinded the AI Diffusion Rule on 13 May 2025, announcing that "the Biden AI Diffusion Rule was an overreach that would have harmed American innovation and damaged relationships with key partners" and committing to develop a "simpler, more targeted" framework. The rescission was nonetheless explicitly narrow — preserving the underlying chip-level controls of the October 2022 / October 2023 architecture and the HBM and Entity List measures.

The second Trump-2 inflection was the expansion of restrictions on Nvidia's H20 chip. On 15 April 2025, Nvidia disclosed in an SEC filing that the company had been "informed by the US government" that exports of the H20 to China (and to Hong Kong and to D:5 countries) would require an export licence under a presumption-of-denial policy. The new restriction effectively closed the H20 China market, leading Nvidia to record approximately $5.5 billion in inventory write-downs and unfulfillable purchase commitments in its Q1 fiscal 2026 results. The H20 restriction was announced without a formal rulemaking — operating through a "is informed" determination under §744.11 — and generated significant industry frustration about regulatory unpredictability.

The third Trump-2 inflection was the Section 232 Semiconductor Investigation initiated by Commerce on 1 April 2025 under Section 232 of the Trade Expansion Act of 1962. The investigation covered semiconductors and downstream products containing semiconductors, with a statutory 270-day reporting deadline placing the determination in late January 2026. The Section 232 architecture differed from IEEPA-based measures (US-D-09, US-D-10) in being statutorily grounded and harder to challenge in court — the V.O.S. Selections and Princess Awesome litigation outcomes against IEEPA tariffs (extensively documented in US-D-09) had created legal uncertainty that the Section 232 path was designed to avoid. The Section 232 investigation produced industry submissions from SIA, the Semiconductor Equipment and Materials International (SEMI) association, and individual firms. The proposed tariff structure under Section 232 — discussed but not finalised through early 2026 — would impose a baseline tariff on semiconductor imports with sector-specific differential treatment.

The fourth Trump-2 inflection was the 20 February 2025 "America First Investment Policy" Presidential Memorandum, which directed Treasury to expand the outbound investment regime's coverage to additional technology categories and to consider additional countries of concern. The memorandum also directed CFIUS to expand inbound-screening of Chinese investments, particularly in agriculture, real estate near sensitive facilities, and technology sectors. The memorandum's outbound-screening expansion was operationalised through a 28 April 2025 Treasury Notice of Proposed Rulemaking adding biotechnology, hypersonic systems, and connected-vehicle technologies to the covered categories.

The fifth and most consequential Trump-2 inflection was the Geneva framework. Following the 2 April 2025 "Liberation Day" reciprocal tariff escalation (US-D-09), which placed reciprocal tariffs on Chinese imports at an aggregate rate reaching 145% (the IEEPA reciprocal baseline plus subsequent escalation), and the Chinese retaliation reaching 125% on US imports, both sides faced acute economic-political pressure. Treasury Secretary Bessent had been signalling de-escalation interest from mid-April; the Chinese side, through MOFCOM Minister Wang Wentao and Vice Premier He Lifeng, signalled corresponding interest. Geneva — selected for its neutrality and its WTO-headquarters symbolism — hosted two days of intensive negotiations on 10–11 May 2025.

The 12 May 2025 Joint Statement on US–China Economic and Trade Meeting in Geneva — issued in parallel English and Chinese texts — committed both sides to a 90-day suspension of the reciprocal escalation. The US reduced the reciprocal tariff rate on Chinese imports from 125% to 10% above the pre-Liberation-Day baseline (producing an effective rate of approximately 30% when combined with Section 301 and prior tariffs); China reduced its reciprocal rate from 125% to 10% (producing an effective rate of approximately 10%). The Joint Statement also committed China to "take measures to suspend or remove its non-tariff measures taken against the United States since April 2, 2025" — read by US officials as including the April 2025 rare-earths export controls (Announcement 17) and the unreliable-entity-list designations of specified US firms.

The Geneva framework was narrowly scoped. It addressed the IEEPA reciprocal tariffs only; it did not address the underlying Section 301 tariffs from the Trump-1 era, the BIS export controls, the Treasury outbound-investment rules, the CHIPS Act guardrails, the pending Section 232 investigation, or the Section 301 investigation into Chinese maritime, logistics, and shipbuilding sectors initiated in April 2025. The framework was a 90-day pause subject to extension by mutual agreement; the underlying decoupling architecture remained in place. The Geneva framework was followed by a series of working-level meetings through summer and autumn 2025 addressing specific bilateral economic frictions, and by a subsequent Beijing meeting in late 2025 producing the 11 November 2025 "Beijing framework" extending the pause through Q2 2026 [TBD-VERIFY: exact terms and dates of any follow-on framework beyond Geneva — confirm against MOFCOM and Treasury readouts as of the May 2026 corpus update].

The Trump-2 architecture, viewed in aggregate through May 2026, preserved approximately 95% of the Biden-era export-control and outbound-investment regime, layered on additional Section 232 and reciprocal-tariff measures, dismantled the AI Diffusion Rule, and produced a tactical de-escalation framework on tariffs while leaving the technology-containment architecture intact. The bipartisan substantive consensus on technology containment — even amid sharp partisan rhetoric on tariffs — was the central structural feature.

10. Chinese Countermeasures — Critical Minerals, Anti-Foreign Sanctions Law, and the WTO Track

The Chinese response to the 2022–2025 architecture evolved through three phases. Phase 1 (October 2022 – mid-2023) was characterised by rhetorical protest, MOFCOM statements expressing "firm opposition," and limited substantive retaliation — reflecting both the surprise of the October 2022 rule and the Chinese leadership's preoccupation with the post-COVID reopening (December 2022 – Q1 2023). Phase 2 (July 2023 – Q3 2024) saw the development of a structured critical-minerals retaliation architecture targeting US supply-chain vulnerabilities. Phase 3 (Q4 2024 – 2025) saw escalation to systematic countermeasures using the Anti-Foreign Sanctions Law and the unreliable-entity-list framework.

The gallium and germanium controls of MOFCOM Announcements 46 and 47 of 3 July 2023 (effective 1 August 2023) marked the inflection from Phase 1 to Phase 2. The Announcements imposed export licensing on gallium and germanium and their compounds (gallium arsenide, gallium nitride, germanium dioxide) under the Export Control Law of the People's Republic of China (effective 1 December 2020). China commands approximately 98% of global refined gallium production and approximately 60% of global refined germanium production; both are essential to advanced semiconductors (gallium for compound semiconductors used in 5G base stations and defence radar; germanium for fibre optics, satellite solar cells, and infrared optics). The Announcements required exporters to obtain MOFCOM licences, which were granted selectively — with licence-approval rates falling sharply for defence-end-use applications.

The antimony and superhard materials controls of MOFCOM Notice 2024 No. 46 of 3 December 2024 extended the architecture to antimony (essential for flame retardants, lead-acid batteries, and certain defence applications including munitions), tungsten-based superhard materials, and additional dual-use categories. Announcement 39 was paired with specific sanctions on six US defence firms including HII Mission Technologies, Edge Autonomy, BRINC Drones, and Skydio — designating them under the unreliable-entity list framework and prohibiting Chinese entities from transacting with them. The December 2024 timing — three weeks before the Trump-2 inauguration — signalled Chinese willingness to escalate against incoming as well as outgoing administrations.

The medium and heavy rare earths controls of MOFCOM Announcement No. 18 of 2025 on 4 April 2025 represented the most strategically consequential Chinese measure. The Announcement imposed export licensing on samarium, gadolinium, terbium, dysprosium, lutetium, scandium, and yttrium — categories essential to high-performance permanent magnets (NdFeB magnets used in electric vehicle motors, wind turbines, and defence systems including the F-35 Lightning II), jet-engine alloys, and laser systems. China commands approximately 85–90% of global rare-earth separation and refining capacity, with even higher dominance in the medium and heavy rare-earth subsegments. Announcement 17 was issued in direct response to the 2 April 2025 "Liberation Day" reciprocal tariffs and was the most prominent component of the Chinese retaliation package.

The MOFCOM licensing implementation through April–May 2025 was, by reported industry accounts, deliberately slow — with licence-approval times extended from previous norms of 30–45 days to 60–90 days or longer, and with reported rejection rates rising for defence-end-use applications. The economic and supply-chain effects accumulated rapidly: Ford disclosed in late April 2025 that rare-earth supply constraints could affect EV production timelines; Lockheed Martin and Raytheon disclosed similar concerns in industry briefings; the Department of Defense Defense Logistics Agency announced strategic-stockpile drawdowns. The rare-earth measures were the principal Chinese leverage producing the Geneva framework's tariff de-escalation; the 12 May 2025 Joint Statement's commitment to suspend Chinese non-tariff measures was interpreted as committing China to accelerate rare-earth licensing, though enforcement remained contested through late 2025.

The Anti-Foreign Sanctions Law of the People's Republic of China — adopted by the Standing Committee of the National People's Congress on 10 June 2021 and supplemented by implementing regulations in 2024 — provided the broader legal architecture for Chinese retaliation. The Law authorised the State Council to designate "Counter-Sanctions Lists" of foreign persons, organisations, and their family members; to deny entry or expel; to seal, seize, or freeze assets; to prohibit transactions; and to authorise Chinese persons to seek damages in Chinese courts against parties complying with foreign sanctions deemed discriminatory. The Law's 2024 implementing regulations established procedural mechanisms and clarified that the Law could be applied to any entity "implementing or assisting in implementing" foreign discriminatory measures.

The unreliable-entity list framework — operating under MOFCOM Order No. 4 of 19 September 2020 — designated specific foreign entities for restrictions on China market access, investment, and personnel. Through 2023–2025, MOFCOM added several dozen US entities to the unreliable-entity list, including (notable examples) Lockheed Martin, Raytheon, General Dynamics, Northrop Grumman, BAE Systems Inc., L3Harris Technologies, Skydio Inc., and PVH (Calvin Klein, Tommy Hilfiger). The PVH addition in September 2024 was particularly significant as the first major non-defence-sector designation, signalling that the architecture could be extended to consumer-facing US firms. The unreliable-entity list operated in parallel with the Export Control Law implementation, the Anti-Foreign Sanctions Law, and the Foreign Investment Law — together producing the Chinese-side architectural symmetry to the US measures.

The WTO track — China's challenge through dispute settlement — operated on a slower timeline. China filed a WTO consultation request on 12 December 2022 challenging the US October 2022 measures; consultations failed; China requested panel composition in late 2023; the panel was composed on 26 January 2024 in China — Measures Affecting Trade in Goods and Services (DS615), with Chair to be determined and parties' written submissions filed through 2024. The substantive Chinese claim asserted that the US measures violated GATT Articles I (MFN), III (national treatment), and XI (quantitative restrictions), and that the US national-security defence under GATT Article XXI was being abused. The US defence asserted that Article XXI's "essential security interests" standard is self-judging and that the Panel lacked jurisdiction to evaluate the United States' security determinations. The Panel had not issued a final report as of the May 2026 corpus update; appellate-body paralysis (with the Appellate Body non-functional since December 2019) limited the dispute's enforcement value regardless of outcome.

The Chinese self-sufficiency response — operating through the Big Fund's Phase 3 (announced May 2024 with approximately ¥344 billion in registered capital, the largest single Chinese semiconductor investment to date), provincial-level funds, and a series of industrial-policy measures — accelerated investment in domestic semiconductor capacity. The cumulative Chinese semiconductor investment from 2014 through 2024 reached approximately $200 billion across the National Integrated Circuit Industry Investment Fund, provincial funds, state-bank lending, tax incentives, and listed-company capital-raising. The investment was directed at SMIC (logic), YMTC (NAND), CXMT (DRAM), Huahong Group (foundry), Naura and AMEC (equipment), and a series of EDA, materials, and packaging firms.

11. The Effectiveness Debate — SMIC 7nm, Mate 60, and the Ascend Progression

The empirical question of whether the 2022–2025 architecture was achieving its stated objectives became increasingly contested through 2023–2025. The debate centred on three case studies that, depending on interpretation, demonstrated either the architecture's structural success or its operational failure.

The first case study was SMIC's production of the Huawei Kirin 9000S processor, used in the Huawei Mate 60 Pro smartphone launched on 29 August 2023 — the day of US Commerce Secretary Gina Raimondo's visit to Beijing. Independent reverse-engineering by TechInsights (initial analysis 4 September 2023) characterised the Kirin 9000S as fabricated on SMIC's "N+2" process, described as a "7nm-class" or "second-generation 7nm" node. The production used DUV immersion lithography (the ASML NXT:1980i and similar systems that had been delivered to SMIC before the 2022 controls and that remained outside the most restrictive subset of Dutch controls) with quadruple patterning techniques. The Kirin 9000S demonstrated that SMIC had achieved sub-10nm production without EUV access — confounding the assumption underlying parts of the export-control regime that EUV restrictions would foreclose advanced-node Chinese production.

The Kirin 9000S launch generated immediate US political response. Commerce Secretary Raimondo's 19 September 2023 statement that "we have no evidence that they can manufacture 7-nanometre at scale" — based on intelligence assessment of SMIC's yield and capacity — was interpreted by critics as inadequately addressing the challenge. House Foreign Affairs Committee Chair Mike McCaul and Representative Mike Gallagher demanded BIS investigation of how SMIC had obtained the equipment to produce the chip. The subsequent BIS investigation, conducted through Q4 2023 and Q1 2024, produced no specific export-control violation findings but contributed to the 17 October 2023 update tightening the regime.

The second case study was the Huawei Ascend 910 AI accelerator progression. The Ascend 910B — produced by SMIC on the N+2 node and entering volume production in late 2023 — was reportedly used in Chinese hyperscaler AI training clusters as a partial substitute for restricted Nvidia chips. Performance benchmarks published in 2024 placed the 910B at approximately 60–70% of Nvidia H100 single-chip performance with significantly higher power consumption and lower software-ecosystem maturity. The Ascend 910C — entering production in Q4 2024 / Q1 2025 — was reported to reach approximately 80% of H100 performance with the CANN software stack maturing. The Ascend 910D — under development through 2025 — targeted H200/B100-class performance, though yield and HBM supply remained binding constraints.

The Ascend progression's strategic significance was contested. CSIS analysis by Gregory Allen (December 2023 and successor reports) argued that capability convergence at low volume did not negate the architecture's value, since binding constraints on HBM supply (particularly the December 2024 BIS HBM rule), on advanced packaging capacity (TSMC's CoWoS dominance), and on EDA tools meant that Chinese AI compute scale-up was structurally constrained even where chip-level capability had been replicated. CNAS analysis by Emily Kilcrease (March 2024) emphasised that the controls had achieved "delay, not denial" and that the strategic question was whether the delay was meaningful given the rapid evolution of AI training compute requirements. Critics (Gerard DiPippo at Rand, Dan Wang's annual letters) argued that the controls had accelerated Chinese investment in indigenous capability and that the long-term effect could be to produce a more capable, less interoperable Chinese semiconductor ecosystem.

The third case study was HBM supply and the broader memory dynamics. The October 2023 update and the December 2024 HBM rule were specifically designed to constrain Chinese access to HBM2/HBM3/HBM3E memory — the binding supply input for AI training. The implementation challenge was that Samsung and SK Hynix were the dominant HBM producers, with Micron entering production from 2024. The rule architecture required Korean and US producers to apply licensing screens to HBM exports destined for Chinese advanced-computing end use. Industry reporting through 2024–2025 indicated that the HBM controls had substantial binding effect on Chinese AI cluster scaling, but that diversion routes through third countries (particularly through Southeast Asian intermediaries) and through indirect channels (HBM in finished servers exported to China) created enforcement challenges.

The cumulative effectiveness assessment varied by metric. By chip-level capability measures, Chinese firms had narrowed the gap with leading-edge US chips but had not closed it; the gap had remained at approximately one to two technology generations through 2025. By scale and yield measures, Chinese firms were producing advanced-node chips at significantly lower yield and significantly higher cost than TSMC or Samsung, limiting commercial competitiveness. By ecosystem measures, the Chinese software, EDA, and packaging ecosystem remained substantially behind US-allied alternatives, though investment was accelerating. By strategic-autonomy measures, the architecture was driving Chinese investment toward indigenous capability at an unprecedented scale.

The evasion and circumvention question generated its own literature. Reports from CSIS, CNAS, and investigative journalism (particularly Reuters' 2023–2024 series and the Nikkei Asia 2024–2025 series) documented circumvention through (i) third-country diversion (UAE, Malaysia, Singapore, Vietnam intermediaries), (ii) shell-company purchases (with subsequent diversion to Chinese end users), (iii) chip-in-server exports (importing finished systems containing controlled chips), and (iv) used-equipment markets (where end-of-life advanced equipment, not always subject to controls, could be acquired and refurbished). The [TBD-VERIFY: cumulative volume of estimated circumvention — reported estimates range from $1–5 billion in chips and equipment per year across the 2023–2025 period, with substantial uncertainty in the methodology]. The Trump-2 BIS prioritised circumvention enforcement, with the 2025 Entity List expansions specifically targeting suspected diversion intermediaries.

The most important structural insight from the 2022–2025 experience was that export controls function as cost-and-delay imposition mechanisms rather than as absolute prohibitions. The architecture imposed substantial economic costs on Chinese semiconductor development, delayed Chinese capability development by an estimated two to five years across the most advanced subsegments, and forced Chinese investment toward indigenous capability that would otherwise have been deferred. Whether this trade-off — delay plus diversion of Chinese investment toward indigenous capability — was strategically advantageous for the United States and its allies depended on assumptions about (i) the rate of Chinese indigenous progress under autarkic conditions, (ii) the rate of US and allied technological advance ahead of the moving Chinese frontier, and (iii) the geopolitical and military significance of the capability differential at any given point.

12. Forward View and Spiral Index

The 2022–2026 architecture represents a structural reordering of the US–China economic relationship that will shape governance, industrial policy, and great-power competition through the late 2020s and 2030s. Three trajectories merit forward-looking attention.

First, the bipartisan persistence of the technology-containment architecture. The Trump-2 administration's preservation of approximately 95% of the Biden-era export-control and outbound-investment regime — even amid sharp partisan rhetoric on tariffs and on dismantling other Biden-era policies — demonstrates that the architecture rests on a deeper bipartisan substrate than the partisan-political surface suggests. The China hawks of both parties (Senators Tom Cotton, Marco Rubio, Mark Warner, Bob Menendez; Representatives Mike Gallagher, Raja Krishnamoorthi, Mike McCaul, Gregory Meeks) sustained a House-Senate working consensus across both administrations. Future research must track whether this bipartisan substrate persists through the 2026 midterms and the 2028 election cycle, and whether successor Democratic and Republican administrations preserve, extend, or qualitatively transform the architecture.

Second, the allied-coordination architecture's resilience under stress. The trilateral US–Netherlands–Japan coordination, the broader Chip 4 framework, the European Economic Security Package, and the multilateral G7 and Quad architecture have been tested by political transitions (Schoof–Wilders Netherlands July 2024, Ishiba succession Japan October 2024, Trump-2 January 2025, prospective Korean and German transitions in 2026–2027) and by Chinese economic-retaliation pressures. The architecture has so far proven more durable than 2022-era critics anticipated; whether it survives a sustained Chinese retaliation campaign focused on critical minerals, market access, and supply-chain leverage remains an open question.

Third, the Chinese self-sufficiency response and its second-order effects. Chinese investment in indigenous semiconductor capability has accelerated substantially since 2022 — the Big Fund Phase 3 alone exceeds the combined Phase 1 and Phase 2 commitments. The empirical question is whether this investment, sustained over five to ten years, produces a fully indigenous Chinese semiconductor ecosystem capable of leading-edge production at scale, a structurally lagged but functionally autonomous Chinese ecosystem, or a Chinese ecosystem that remains permanently dependent on selective foreign inputs. The answer will shape not only the bilateral US–China relationship but the entire structure of global technology supply chains. If the Chinese self-sufficiency response succeeds, the architecture will have produced a bifurcated global technology system; if it fails, the architecture will have constrained Chinese capability development for a strategic generation.

Spiral index: Documents linked from US-F-07 that this document cross-references and that, when written or updated, will deepen the comparative-governance analysis:

US-D-05 (CHIPS Act and IRA 2022) — the parent domestic-policy doc; the §6 CHIPS Act implementation discussion is the operational complement.
US-D-08 (Trump-2 Cabinet and First Hundred Days) — the parent governance doc for §9; Bessent-Lutnick-Greer architecture.
US-D-09 (2025 IEEPA Tariff Regime and Court Challenges) — concurrent comparator; the IEEPA tariff layer running parallel to the export controls.
US-D-10 (Trump-2 Tariff Architecture) — concurrent comparator; the Section 232 semiconductor investigation and the Geneva framework overlap.
US-F-06 (US–Ukraine Bilateral) — tonal exemplar and parallel weaponised-interdependence frame.
US-B-05 (Obama Second Term Architecture) — antecedent for the engagement-era baseline.
US-B-06 (2015 Iran JCPOA) — Obama-era sanctions-architecture comparator.
US-C-03 (Trump-1 China Trade War 2018–2019) — direct antecedent; the tariff-focused predecessor to the technology-containment regime.
CN-D-01 (Common Prosperity and 2020s Economic Pivot) — the Chinese-side parent doc on dual circulation and self-sufficiency.
CN-D-02 (Third Plenum 2024 and Two Sessions 2025) — concurrent Chinese policy response.
CN-E-01 (Cross-Strait Policy 2022–2025) — the cross-Strait military-security frame within which the semiconductor supply chain operates.
CN-E-02 (Cross-Strait Policy 2025) — direct concurrent.
CN-E-03 (China–EU Relations and De-Risking) — the parallel European architecture.
TW-D-03 (TSMC Arizona and Trump-2 Chip Tariffs) — the Taiwan-side semiconductor diplomacy doc.
TW-G-02 (Taiwan's Semiconductor Ecosystem) — the broader Taiwan supply-chain context.
JP-F-04 (Japan–China Relations 2023–2025) — the Japanese bilateral context for the METI coordination.
UA-F-01 (Ukraine's NATO Trajectory) — the parallel weaponised-interdependence frame on financial sanctions and frozen assets.

Future companion documents to be written: US-F-01 (US–China Strategic Competition 2005–present, as the Block-F parent); US-F-07's intended originally-scoped subject "Trade Policy Across Five Presidents" may merit reassignment to a successor code (US-F-08 or higher) given that US-F-07 now houses the decoupling-architecture anchor; and the planned KR-F (Korea foreign-economic policy) block when Korea is incorporated into the corpus will provide the systematic Korean-side counterpart to §7's discussion of Validated End User status and the Korean hesitation on equipment controls.

13. Conclusion — A New Economic-Security State

The 7 October 2022 BIS Interim Final Rule is, in retrospect, the founding document of what Henry Farrell and Abraham Newman have called the "new economic-security state" — a regime in which the United States and its allies use chokepoints in global economic and technology networks to constrain the capabilities of designated adversaries, while accepting substantial economic costs as the price of strategic containment. The rule departed from three decades of WTO-era universalist trade policy; it inverted the post-Cold-War assumption that economic integration would produce political convergence; and it established a layered architecture of item-based, end-use, end-user, foreign-direct-product, US-persons, country-scope, and ally-coordinated controls that constituted a structural reordering of US–China economic relations.

The architecture has proven more durable, more bipartisan, and more allied-coordinated than 2022-era critics anticipated. The Trump-2 administration's preservation of the core architecture — even as it dismantled the AI Diffusion Rule, added Section 232 and reciprocal tariffs, and produced the Geneva framework — demonstrates that the underlying strategic logic enjoys cross-administration consensus. The Dutch and Japanese coordination, the CHIPS Act guardrails, the Treasury outbound-investment regime, and the cumulative Entity List expansions together constitute an architecture whose dismantling would require not only a policy reversal but a foundational re-conception of US–China strategic relations.

The architecture has imposed substantial costs on the US and allied semiconductor industries — Nvidia's H20 inventory write-down, Intel's CHIPS Act timeline difficulties, ASML's China revenue decline, the Korean fabs' uncertain trajectory — and has provoked significant Chinese retaliation through the critical-minerals controls and the unreliable-entity-list framework. The Chinese self-sufficiency response has accelerated Chinese indigenous investment in semiconductor capability at an unprecedented scale.

The fundamental strategic question — whether the architecture is achieving cost-effective containment of Chinese technological advance, or whether it is accelerating the development of a parallel Chinese ecosystem that will, over the medium term, prove more strategically threatening than the dependent ecosystem it replaces — cannot be answered from 2026. The answer depends on trajectories of Chinese capability development, US and allied technological advance, allied-coordination resilience, and Chinese economic retaliation that will play out over the late 2020s and 2030s. What can be said is that the 2022–2026 architecture is a foundational settlement of the early 21st century US–China economic relationship — a settlement whose intellectual antecedents in Sullivan's "small yard, high fence," whose operational substance in BIS and Treasury rules, and whose political durability across two administrations together make it the central comparative-governance object of US foreign-economic policy in the current era.

The "small yard, high fence" doctrine, viewed from May 2026, has produced a yard that is neither small nor narrowly fenced. Whether that is a successful adaptation of the original conception to the rapidly evolving technological-strategic environment, or a failure of the original conception's disciplining logic, is the central debate that will shape successor administrations' approach to the architecture through the late 2020s and beyond.

Sources

Bureau of Industry and Security, Department of Commerce, Implementation of Additional Export Controls: Certain Advanced Computing and Semiconductor Manufacturing Items; Supercomputer and Semiconductor End Use; Entity List Modification, Interim Final Rule, 87 Federal Register 62186 (13 October 2022) — the 86-page foundational text of the 7 October 2022 rule, comprising the advanced-computing controls (new Export Control Classification Numbers 3A090 and 4A090), the semiconductor-manufacturing-equipment controls (3B090), the US-Persons control (extending §744.6 to activities supporting foreign-produced advanced-node fabrication in China), and the Entity List modifications adding 28 entities including YMTC, CXMT (formerly Innotron), and the PXW computing-cluster designees; the Foreign Direct Product Rule (FDPR) extensions under §734.9.
Bureau of Industry and Security, Export Controls on Semiconductor Manufacturing Items, Interim Final Rule, 88 Federal Register 73424 (25 October 2023, effective 17 November 2023) — the October 2023 update introducing the "performance density" metric, the High Bandwidth Memory (HBM) controls, the closure of the A800/H800 workaround through ECCN 3A090.a and 3A090.b, the expansion of the country scope to include additional jurisdictions of concern, and the addition of 21 entities to the Entity List.
Bureau of Industry and Security, Foundry Due Diligence, Red Flag Indicators, and successor rules (2024–2025) — including the 2 December 2024 HBM control finalisation and the 15 January 2025 AI Diffusion Rule (90 FR 4544, Interim Final Rule effective 15 May 2025) subsequently rescinded on 13 May 2025 by BIS announcement.
Executive Order 14105, Addressing United States Investments in Certain National Security Technologies and Products in Countries of Concern, 9 August 2023, 88 Federal Register 54867 — the foundational outbound-investment authority instructing the Treasury to issue regulations covering semiconductors and microelectronics, quantum information technologies, and certain artificial intelligence systems.
Department of the Treasury, Provisions Pertaining to U.S. Investments in Certain National Security Technologies and Products in Countries of Concern, Final Rule, 31 CFR Part 850, 89 Federal Register 90398 (28 October 2024, effective 2 January 2025) — the operational outbound-investment screening regime promulgated by Treasury's Office of Investment Security under Assistant Secretary Paul Rosen.
CHIPS and Science Act of 2022 (Pub. L. 117-167, signed 9 August 2022) — particularly Title I (the CHIPS for America Fund, $52.7 billion appropriation), Section 9902 (the CHIPS Manufacturing Incentives Program), Section 9903 (the CHIPS R&D Program), and the Section 103 "guardrails" prohibiting recipient expansion of advanced-node semiconductor capacity in countries of concern for ten years.
Department of Commerce CHIPS Program Office, Notice of Funding Opportunity for Commercial Fabrication Facilities (28 February 2023) and successor NOFOs; Preliminary Memoranda of Terms (PMT) and Definitive Agreements with Intel (20 March 2024, $8.5B direct funding plus $11B loans), TSMC Arizona (8 April 2024, $6.6B plus $5B loans), Samsung Austin/Taylor (15 April 2024, $6.4B), Micron (25 April 2024, $6.1B), GlobalFoundries (19 February 2024, $1.5B), and BAE Systems (December 2023, $35M); CHIPS National Security Agreements (NSAs) governing China-expansion guardrails.
National Government of the Netherlands, Letter to the House of Representatives on additional export controls on advanced semiconductor manufacturing equipment, Minister for Foreign Trade and Development Cooperation Liesje Schreinemacher to Tweede Kamer, 8 March 2023, and successor instrument Regeling van de Minister voor Buitenlandse Handel en Ontwikkelingssamenwerking (the "country-specific export controls" rule, effective 1 September 2023) covering ASML deep-ultraviolet (DUV) immersion lithography systems (the TWINSCAN NXT:2050i and NXT:2100i) and certain ASMI deposition tools.
Government of Japan, Ministry of Economy, Trade and Industry (METI), Partial Amendment to the Export Trade Control Order (Cabinet Order No. 252 of 2023), promulgated 23 May 2023 and effective 23 July 2023 — adding 23 categories of advanced semiconductor manufacturing equipment to the Foreign Exchange and Foreign Trade Act (FEFTA) export control list under METI Minister Nishimura Yasutoshi.
Ministry of Commerce of the People's Republic of China, Announcements No. 46 and 47 of 2023 on Implementing Export Controls on Items Related to Gallium and Germanium (3 July 2023, effective 1 August 2023); Announcement No. 39 of 2024 on Implementing Export Controls on Items Related to Antimony, Superhard Materials, and Other Dual-Use Items (3 December 2024, effective immediately, with parallel sanctions on US firms); Announcement No. 17 of 2025 on Implementing Export Controls on Items Related to Medium and Heavy Rare Earths (4 April 2025); and successor measures including the unreliable-entity list designations and the Anti-Foreign Sanctions Law of the People's Republic of China (adopted 10 June 2021, implementing regulations in 2024).
National Security Advisor Jake Sullivan, Renewing American Economic Leadership, remarks at the Brookings Institution, Washington DC, 27 April 2023 — the articulation of the "small yard, high fence" doctrine and the "new Washington consensus" repudiating the post-Cold-War liberalisation framework.
White House, Fact Sheet: President Biden Issues Executive Order on Safe, Secure, and Trustworthy Artificial Intelligence, 30 October 2023 (Executive Order 14110, 88 FR 75191); National Security Memorandum on Advancing the United States' Leadership in Artificial Intelligence (NSM-25, 24 October 2024); for the AI-policy context within which the export-control architecture operates.
Center for Strategic and International Studies (CSIS) — Gregory C. Allen, Choking Off China's Access to the Future of AI (CSIS, 11 October 2022); In Chip Race, China Gives Huawei the Steering Wheel (CSIS, 6 December 2023); China's New Strategy for Waging the Microchip Tech War (CSIS, May 2023); Emily Benson and Margot Putnam, Updated October 7 Semiconductor Export Controls (CSIS, October 2023); successor commentary 2024–2026.
Center for a New American Security (CNAS) — Martijn Rasser, Sand in the Gears: Reorienting U.S. Export Controls Against China's Tech Ambitions (CNAS, 2022); Kevin J. Wolf (former Assistant Secretary of Commerce for Export Administration), legal-architecture commentary 2022–2025; Emily Kilcrease and Geoffrey Gertz, Sanctions by the Numbers tracker series; the CNAS Energy, Economics, and Security Program outbound-investment reports.
Rhodium Group, Two-Way Street: Chinese Investment in the United States (annual reports 2017–2025, principal authors Daniel H. Rosen, Thilo Hanemann, Adam Lysenko, Reva Goujon); The Wires That Bind: US-China Foreign Direct Investment Trends tracker; Hedging Bets: The Quiet Transformation of China's Tech Trade (2024).
Peterson Institute for International Economics (PIIE) — Chad P. Bown, US-China Trade War Tariffs: An Up-to-Date Chart (continuously updated 2018–2025); The 2025 Trade War: Dynamic Impacts Across U.S. States and the Global Economy (PIIE Working Paper 25-3, March 2025); Mary E. Lovely and Yang Liang scholarship on supply-chain fragmentation 2022–2025.
Semiconductor Industry Association (SIA), State of the U.S. Semiconductor Industry annual reports 2022–2025; SIA quarterly billings data; SIA testimony before House Foreign Affairs and Senate Commerce committees on the October 2022 and October 2023 rules.
Earnings call transcripts and 10-K filings: ASML Holding N.V. (Q3 2022 – Q1 2026, CEO Peter Wennink succeeded by Christophe Fouquet April 2024); Taiwan Semiconductor Manufacturing Company Ltd. (TSMC, CEO C.C. Wei); Samsung Electronics (Memory and Foundry divisions); Intel Corporation (CEO Pat Gelsinger through November 2024, then interim leadership; Lip-Bu Tan from March 2025); Nvidia Corporation (CEO Jensen Huang; particularly the August 2022 H100 export licence notification, the September 2022 A800/H800 China-variant launch, the November 2023 H20 launch, and the April 2025 H20 export-restriction disclosure); Advanced Micro Devices, Inc.; Micron Technology; Applied Materials; Lam Research; KLA Corporation.
Foreign Affairs essay archive 2022–2026 — particular reliance on Henry Farrell and Abraham Newman, Weaponized Interdependence: How Global Economic Networks Shape State Coercion (Cornell University Press, 2021) and the 2023 Foreign Affairs essay "The New Economic Security State"; Gregory C. Allen and Eric Schmidt commentary on AI competition; Aaron L. Friedberg, Getting China Wrong (Polity, 2022); Rush Doshi, The Long Game: China's Grand Strategy to Displace American Order (Oxford University Press, 2021).
World Trade Organization, China — Measures Concerning Trade in Goods and Services (DS615, panel composed 26 January 2024 following China's 7 December 2022 request for consultations on the US semiconductor measures) — the WTO-track challenge to the US export-control regime, principal Chinese complainant counsel through the Ministry of Commerce Bureau of Fair Trade for Imports and Exports.
White House, Joint Statement on U.S.–China Economic and Trade Meeting in Geneva, 12 May 2025, issued following two days of meetings between Treasury Secretary Scott Bessent, US Trade Representative Jamieson Greer, Vice Premier He Lifeng, MOFCOM Minister Wang Wentao, and the People's Bank of China — the framework agreement covering reciprocal tariff suspensions, MOFCOM rare-earth export-licence acceleration, and the 90-day pause architecture; co-referenced with US-D-10.
Congressional Research Service reports: U.S. Export Controls and China (Karen M. Sutter, principal analyst, CRS Report R47684, periodically updated 2023–2026); The CHIPS and Science Act: A Primer (Manpreet Singh and John F. Sargent Jr., CRS Report R47523, 2023); Outbound Investment Screening (Christopher A. Casey and Cathleen D. Cimino-Isaacs, CRS In Focus IF12453, 2024–2025); China Naval Modernization and adjacent reports.
The Diplomat, Nikkei Asia, Financial Times, The Wall Street Journal, Reuters, Bloomberg, The Information — daily semiconductor and export-control coverage 2022–2026, with particular reliance on Cheng Ting-Fang, Lauly Li, Cissy Zhou (Nikkei); Kana Inagaki, Kathrin Hille, Eleanor Olcott, Demetri Sevastopulo (FT); Asa Fitch, Yang Jie, Lingling Wei, Bob Davis (WSJ); Karen Freifeld, Alexandra Alper, Stephen Nellis (Reuters); Mackenzie Hawkins, Debby Wu, Ian King (Bloomberg).
Tan Kah Kee Centre / National University of Singapore "Decoupling Index" or analogous comparative monitor — [TBD-VERIFY: the specific NUS/EAI series tracking US–China trade-and-technology decoupling; if not located, substitute with the IMF External Sector Report 2024 fragmentation chapter and the BIS Annual Economic Report 2023 Chapter II analysis].
United Kingdom Department for Business and Trade and the National Security and Investment Act 2021 architecture; Republic of Korea Ministry of Trade, Industry and Energy positions on the Chip 4 alliance and the National Strategic Industries Special Act 2023.

US-D-05: 2022 Inflation Reduction Act and CHIPS Act — the immediate domestic-policy antecedent providing the CHIPS Act guardrail architecture against which the October 2022 export controls operate; concurrent industrial-policy comparator.
US-D-08: Trump-2 Cabinet and First Hundred Days (January–April 2025) — the parent governance-architecture doc within which the Trump-2 escalation phase of §9 is situated; Bessent-Lutnick-Greer trade team architecture.
US-D-09: 2025 IEEPA Tariff Regime — Liberation Day and Court Challenges — concurrent comparator on the Trump-2 transactional-foreign-economic-policy frame; the IEEPA tariff layer running parallel to the export-control regime.
US-D-10: Trump-2 Tariff Architecture — IEEPA, Section 232, and the Trade War 2025–2026 — direct concurrent; the Section 232 semiconductor investigation and the Geneva framework discussion overlap.
US-F-06: The US–Ukraine Bilateral From the Budapest Memorandum to the April 2025 Minerals Deal — companion Block-F document on the Trump-2 transactional-alliance frame; tonal exemplar.
US-B-05: Obama Second-Term Government Architecture (2013–2017) — the era of "strategic patience" and the 2015 Xi Jinping state visit; the pre-decoupling baseline.
US-B-06: 2015 Iran JCPOA — comparator on the Obama-era sanctions-architecture toolkit.
CN-D-01: Common Prosperity and the 2020s Economic Pivot — the Chinese-side parent doc on the Xi-era economic pivot within which the dual-circulation and self-sufficiency-pivot interpretation of §11 is situated.
CN-D-02: Third Plenum 2024 and Two Sessions 2025 — the Chinese-side concurrent doc on the 2024–2025 policy response.
CN-E-01: Cross-Strait Policy 2022–2025 — From Pelosi to Joint Sword 2024 — the cross-Strait military-security frame within which the semiconductor-supply-chain risk operates.
CN-E-02: Cross-Strait Policy 2025 — Strait Thunder 2025 and the Trump-2 Bargaining — direct concurrent for the 2025 negotiation context.
CN-E-03: China–EU Relations — EV Tariffs, De-Risking, and Strategic Rivalry 2023–2026 — the parallel European de-risking architecture against which US measures are coordinated and contested.
TW-D-03: TSMC Arizona and the Trump-2 Chip Tariffs (2020–2025) — the Taiwan-side semiconductor diplomacy doc; CHIPS Act foreign-fab implementation.
TW-G-02: Taiwan's Semiconductor Ecosystem Beyond TSMC — UMC, MediaTek, Realtek, ASE (1987–2025) — the broader Taiwan supply-chain context.
JP-F-04: Japan–China Relations — Fukushima Discharge to Ishiba Pragmatism (2023–2025) — the Japanese-side bilateral context within which the METI export-control coordination operates.
UA-F-01: Ukraine's NATO Trajectory (2008–2024) — the parallel weaponised-interdependence frame on financial sanctions and frozen assets, providing the comparative architecture for the export-control toolkit.
CN-D-03: property crisis stimulus package and local debt 2021 2026
PH-F-05: philippines japan reciprocal access agreement and the trilateral with us 2022 2026
US-F-08: US-Russia bilateral 2025-2026
CN-F-01: China-Russia no-limits partnership 2022-2026
IN-F-02: India-China Galwan-to-Kazan reset 2020-2026
JP-F-05: Japan-Taiwan strategic alignment 2022-2026
TW-D-06: Taiwan 2026 budget battle + KMT-TPP bloc + defence spending
CN-D-04: China 2026 Two Sessions + new productive forces + Trump-2 response
MY-D-07: Anwar Madani Year 3 fiscal reform + ASEAN-chair aftermath 2025-2026
IN-E-03: Modi-3 2026 Budget + Viksit Bharat 2047 + tariff-shock recalibration
PH-D-07: Philippines post-impeachment polity reset + 2028 pre-campaign 2025-2026
TW-G-03: Taiwan semiconductor diaspora + TSMC global fabs + chip diplomacy 2020-2026
JP-F-01: The US–Japan Alliance from Koizumi's "Boots-on-the-Ground" Era to Trump-2 Transactionalism: Basing, Burden-Sharing, Collective Self-Defense, and the Counterstrike Turn
US-F-03: The Iran Nuclear File — JCPOA, Withdrawal, and the 2025 Strikes
US-A-00: back-reference added by symmetry sweep
US-F-01: US-China Strategic Competition (2005–2026) — back-reference added by symmetry sweep; the Block-F parent doctrinal frame within which this doc's export-control/investment-screening operational detail sits as the direct child anchor