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Economic Chokepoints — Coercive Statecraft

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Economic Chokepoints — Coercive Statecraft

Definition

An economic chokepoint is a structurally non-substitutable node — geographic, financial, technological, or material — through which a critical share of global flows must transit, and whose controller can throttle, condition, or deny access to coerce a target without crossing the threshold of overt armed conflict. Chokepoints are the operational substrate of contemporary coercive statecraft in the Gray Zone and a load-bearing instrument of Hybrid Warfare.

The chokepoint frame must be distinguished from adjacent instruments:

  • Sanctions (legal instrument, see Lawfare): formal denial of access via legal/regulatory authority. Chokepoints are the plumbing sanctions exploit; SWIFT only coerces because it is a chokepoint.
  • Blockade (kinetic instrument): physical interdiction of flows. Chokepoint coercion may include blockade as escalation, but ordinarily operates below it (export licensing, tariff weaponisation, processing denial, foundry allocation).
  • Embargo (diplomatic instrument): unilateral or coalition prohibition on trade with a target. Embargoes presuppose chokepoint control by the embargoing party; without chokepoint leverage, an embargo is symbolic.

Chokepoint coercion is the infrastructure layer that makes sanctions, embargoes, and selective blockades work. Its defining property is asymmetric substitutability: the controller can find alternatives within months; the target cannot within years. This asymmetry is the source of leverage and the reason chokepoint coercion sits comfortably below the threshold of armed retaliation — the cost is diffuse, the attribution is plausible, and the target’s escalation options are constrained by the same dependency that defined the chokepoint in the first place.

Taxonomy — Chokepoint Classes

ClassExampleControllerSubstitutabilityLeverage HorizonActivation Mode
FinancialSWIFT, USD clearing, CHIPSUS Treasury / OFAC, Belgium-domiciled SWIFT under EU/US influenceVery low (CIPS, SPFS partial substitutes; ~3% of cross-border messaging)DecadesDesignation, de-listing, secondary sanctions
Maritime — EnergyStrait of Hormuz (~20% of global oil), Bab-el-Mandeb / Suez (~12% global trade), Strait of Malacca (~30% maritime trade, ~80% of China’s oil imports)Iran (Hormuz), Houthis/Egypt (Bab/Suez), Indonesia/Malaysia/Singapore (Malacca)Low — alternative routing adds 15–30 days and exceeds tanker fleet capacityDays to monthsNaval interdiction, mining, drone/missile threat to shipping
Maritime — TradeTaiwan Strait (~40% of global container fleet transits annually); Panama CanalPRC (latent, contested by US/Taiwan/Japan); Panama with US security overlayLow for Taiwan Strait container flows; Panama partially routable via Cape Horn / SuezMonthsNaval exercise envelope, customs slowdowns, full closure in conflict
Materials — Critical MineralsHeavy rare earths (China ~85% extraction, ~90%+ processing); cobalt (DRC extraction, China processing); lithium (Australia/Chile/Argentina extraction, China processing); gallium, germanium, graphiteChina (processing dominance across the board); DRC (cobalt extraction)Very low for processing; medium for extraction7–15 years to stand up Western processing at scaleExport licensing, quota cuts, outright bans
Technology — SemiconductorsASML EUV lithography (sole supplier worldwide); TSMC advanced-node foundry (~64% pure-play foundry, near-total share at 3nm and 5nm); Nvidia data-centre GPU (~92% market)Netherlands / Taiwan / US, all under US export-control reachEffectively zero at the frontier; 10+ years to replicate10–20 yearsExport licence denial, customer allocation, foundry tape-out scheduling
Energy — Pipelines & LNGDruzhba and Nord Stream pipelines (pre-2022); Qatar LNG; US LNG export terminalsRussia (legacy); Qatar; US (export licensing)Medium — re-routing possible at price1–5 yearsFlow throttling, contract repricing, sabotage (Nord Stream 2022)
Data & DigitalUndersea cables (~99% of intercontinental data); hyperscale cloud (AWS, Azure, GCP); root DNS; CDN (Cloudflare, Akamai); GPS / GNSS constellationsCable consortia under littoral state jurisdiction; US-domiciled hyperscalers; ICANN; US Space Force (GPS)Low for cables (years to lay); medium for cloud (multi-cloud feasible); zero for GPS at frontier without alternative GNSS5–15 yearsCable cuts (kinetic or accidental-deniable), licensing, account suspension, GNSS jamming/spoofing

The table is non-exhaustive but covers the canonical six classes. Each class generates a distinct coercion grammar: financial chokepoints coerce through exclusion, maritime through interdiction, materials and technology through allocation, energy through flow modulation, data through service denial. A mature chokepoint posture orchestrates across classes — see Concurrent Activation below.

Concurrent Activation — 2026 Case

The 2026 window has produced the first clear case of simultaneous multi-vector chokepoint activation outside formal wartime:

  • Strait of Hormuz blockade (Iran, 2026): Iranian declaration of closure following the regional escalation tracked in Strategic analysis on Iran conflict. Modeled price impact: USD 120–150/bbl Brent with no viable alternative routing for Gulf producers; SPR draws and Saudi East-West pipeline (5 Mbpd nameplate) cover only a fraction of displaced volumes. Fact.
  • China rare earth export restrictions (2026): Active export-licensing regime on heavy rare earths, gallium, germanium, and tooling-grade materials, layered on the 2023–2024 controls. Fact.
  • Taiwan Strait classified “critical (latent)” with ~40% of global container fleet transit, no kinetic disruption yet, but elevated PLA Navy exercise envelope through Q1 2026. Fact.

Assessment (Moderate confidence): the simultaneity is consistent with — though not definitive proof of — coordinated or opportunistically synchronised pressure on Western-aligned supply chains. The pattern fits Sino-Iranian alignment as observed in the 25-year cooperation agreement, expanded oil-for-yuan trade, and joint naval exercises with Russia. It also fits the Unrestricted Warfare doctrine of Qiao Liang and Wang Xiangsui, which explicitly identifies financial, resource, and trade warfare as substitutable for kinetic engagement, and the salami-slicing logic in which each individual move stays below the threshold that would justify Western military response while the cumulative pressure shifts the strategic balance.

Counter-assessment (Low confidence, retained for falsification): the activations may be independent — Iran responding to its own escalation calculus, China to US semiconductor controls — with synchronicity an artefact of a single hot geopolitical window rather than a coordinated campaign. The two hypotheses are not yet separable on open-source evidence. Gap: no signals-intelligence-grade indication of pre-coordination has surfaced; the assessment rests on pattern, alignment, and timing.

What is operationally settled regardless of intent: Western supply-chain planners face the first stress-test of multi-vector chokepoint exposure, and the test is being administered without a kinetic trigger that would mobilise treaty responses. This is the chokepoint coercion model in its mature form — see Great Power Competition.

Adversary Strategies (Counter-SWIFT & De-Dollarization)

The SWIFT chokepoint — financial messaging plus USD clearing plus secondary-sanctions reach — is the single highest-leverage Western instrument and has been treated as such since the 2012 Iran de-listing and the 2022 Russia partial de-listing. Adversary states have responded with a layered counter-architecture, none yet at parity but cumulatively eroding the chokepoint’s universality:

  • CIPS (China Cross-Border Interbank Payment System): launched 2015, ~1,500 indirect participants by 2024–2025, processing ~CNY 175 trillion annually. Still rides on SWIFT for messaging in most flows but provides yuan-denominated clearing independent of CHIPS. Fact.
  • SPFS (Russian System for Transfer of Financial Messages): domestic SWIFT substitute, ~550 participants by 2024, mostly Russian and CIS. Limited cross-border reach. Fact.
  • mBridge (multi-CBDC platform, BIS Innovation Hub originally — China, HKMA, Thailand, UAE, then BIS withdrawal in 2024): wholesale CBDC settlement bypassing correspondent banking. Fact.
  • BRICS payment initiatives (BRICS Pay, BRICS Bridge, proposed BRICS unit of account): mostly aspirational through 2025, but politically signalling de-dollarisation intent. Assessment.
  • Bilateral commodity trade in non-USD currencies: India–Russia rupee–rouble settlement; China–Saudi yuan-denominated oil tranches; Russia–China trade ~95% in yuan/rouble by 2024. Fact.
  • Digital yuan (e-CNY) internationalisation: cross-border pilots via mBridge and bilateral arrangements; structural alternative to USD for trade settlement, intentionally architected to be observable to the PBOC and opaque to OFAC. Fact.

Belt and Road Initiative and the Digital Silk Road are the delivery vehicles for this counter-architecture — extending yuan-clearing infrastructure, fibre routes, payment rails, and surveillance-grade fintech to BRI participants in a single integrated package. The bet is structural: even if no single substitute reaches parity with SWIFT, the fragmentation of the global financial messaging layer is itself the strategic objective. A bifurcated system with even 20% of global flows outside Western reach materially degrades the chokepoint’s coercive value.

Assessment (High confidence): the SWIFT chokepoint will retain dominance through the 2025–2030 window but will face accelerating erosion through bilateral workarounds rather than frontal substitution. The mode of erosion matters: each carve-out (oil, sanctioned-state trade, BRI corridors) reduces marginal coverage rather than overthrowing the system, which makes the erosion politically invisible until a threshold breaks.

Corporate Chokepoints (Non-State Nodes)

Three privately-held firms function as load-bearing chokepoints in the contemporary semiconductor stack:

  • ASML (Veldhoven, Netherlands): sole producer of extreme ultraviolet (EUV) lithography systems and the dominant supplier of deep ultraviolet (DUV) systems. No competitor at the EUV frontier; replication estimated at 10–20 years. Fact.
  • TSMC (Hsinchu, Taiwan): ~64% of global pure-play foundry revenue; near-total share at 3 nm and 5 nm process nodes; primary fabricator for Apple, Nvidia, AMD, Qualcomm advanced silicon. Fact.
  • Nvidia (Santa Clara, US): ~92% of data-centre GPU market; CUDA software stack as a parallel software chokepoint. Fact.

These nodes complicate traditional deterrence logic in three ways:

  1. Jurisdictional complexity: ASML sits in the Netherlands, TSMC in Taiwan, Nvidia in the US — all within Western political reach but none under direct state control. Coercion through these firms (US export controls on ASML EUV sales to China) operates via licensing rather than ownership; the firms’ commercial incentives diverge from state preferences and require continuous political management.
  2. Targetability: a firm cannot deter retaliation. TSMC’s Hsinchu fabs are concentrated in a ~50 km radius on an island that is itself a contested chokepoint; the Taiwan Strait scenario folds the corporate and maritime chokepoints into a single failure mode. The “silicon shield” doctrine treats this concentration as deterrent (destroying TSMC degrades global tech), but the deterrent only holds if the destruction is unilateral; in a coercion-then-seizure scenario the calculus inverts.
  3. Replacement horizon as deterrence ceiling: the 10+ year horizon to substitute ASML, TSMC, or Nvidia means that any kinetic disruption locks in a decade of degraded global capacity. This is a structural vulnerability for the West, not only because the firms are concentrated but because the time-to-replace exceeds any politically tractable mobilisation window. CHIPS Act, EU Chips Act, and Japan’s Rapidus initiative are responses on the right scale but operate on the wrong clock — measured against the activation horizon of the chokepoints they aim to substitute, they are years late.

The non-state chokepoint problem is structurally akin to the Critical Infrastructure problem: privately operated, strategically essential, defended by neither commercial logic nor state policing alone. See also Covert Action and Information Warfare for the cognitive and clandestine dimensions of chokepoint contestation around these nodes (industrial espionage, talent extraction, supply-chain implantation).

LATAM Dimension

Latin America’s mineral endowment positions the region as the principal contested middle ground in the supply-chain realignment now underway:

  • Argentina (lithium): third-largest global producer; ~10 Mt lithium carbonate equivalent in proven reserves; lithium triangle with Bolivia and Chile holds ~55% of global resources. The Milei administration’s mining liberalisation (RIGI regime, 2024) has accelerated US, Australian, Korean, and Chinese investment in parallel — explicit hedging by Buenos Aires rather than alignment. Fact.
  • Brazil (rare earths, niobium, graphite, lithium): second-largest rare-earth reserves globally; ~85% of global niobium reserves and production (CBMM near-monopoly); growing graphite and hard-rock lithium production in Minas Gerais. The Serra Verde rare-earth project (Goiás) entered production 2024 as the first significant non-Chinese heavy rare earth source. Fact.
  • Chile (copper, lithium): ~25% of global copper, lithium nationalisation framework (2023, Boric administration) creating a state-private hybrid (Codelco + SQM + Albemarle).
  • Bolivia (lithium): largest known reserves but persistent extraction-technology deficit; Russian and Chinese partnerships dominant, US engagement constrained by political distance.
  • Peru (copper, silver): persistent political instability constrains long-horizon supply commitments.

Assessment (Moderate-High confidence): the simultaneous courting of LATAM critical-mineral suppliers by Washington (IRA, Minerals Security Partnership, Americas Partnership for Economic Prosperity) and Beijing (BRI extension, processing-facility offers, equity stakes via state-owned vehicles) is producing a structural choice point for South American capitals between 2026 and 2030. The choice is not binary alignment but architectural: which processing standard (Chinese vs Western), which off-take currency (USD vs CNY), which traceability regime (US Inflation Reduction Act sourcing rules vs Chinese laxity), which infrastructure financier (EXIM/IFC vs CDB/EXIM China).

For Brazilian intelligence specifically, this elevates the critical-minerals portfolio to strategic-asset status alongside agriculture and energy. CBMM’s niobium near-monopoly is the closest thing the Western alliance has to a counter-chokepoint against Chinese materials dominance, and its strategic management warrants the same scrutiny applied to TSMC. The Belt and Road Initiative presence in Latin America (21 of 33 LATAM/Caribbean states signed by 2024) is the operational vehicle for Chinese chokepoint extension; the US Minerals Security Partnership is its institutional counterpart, structurally late and underfunded.

Gap: no consolidated open-source mapping of Chinese equity positions in LATAM critical-mineral processing — extraction is well-tracked, processing-stage ownership is opaque.

Strategic Implications

  • Multi-vector activation collapses the planning horizon. Western contingency planning has historically treated chokepoint scenarios as single-axis events (Hormuz closure or Taiwan blockade or rare-earth cutoff). The 2026 case demonstrates that adversaries can — and do — activate concurrently. Allied stockpile policy, strategic reserves, and surge-production planning must shift from single-axis stress tests to combinatorial ones, which materially raises required reserve depth.
  • The 10+ year replacement horizon is the structural vulnerability. Capital and political mobilisation cycles in Western democracies operate on 4–8 year horizons; the chokepoints they need to substitute operate on 10–20 year horizons. CHIPS Act, EU Chips Act, IRA, and MSP are correctly directed but structurally behind the activation curve. A chokepoint deterrence posture requires multi-administration political continuity that current institutional design does not reliably provide.
  • LATAM is the contested middle ground for the next supply-chain decade. Brazilian niobium, Argentine and Chilean lithium, and the broader critical-minerals corridor are the Western alliance’s principal hedge against Chinese processing dominance. Failure to convert this geological endowment into Western-aligned processing capacity by ~2030 forecloses the option permanently and converts LATAM from hedge asset to dual-aligned supplier — a gain for adversary coercion-resilience, not Western.
  • Corporate chokepoints externalise deterrence into commercial decision-making. ASML, TSMC, and Nvidia operate inside Western political jurisdiction but outside state command. A coherent chokepoint deterrence posture requires institutional mechanisms for political-commercial alignment that do not yet exist at scale — closer to a Defense Production Act footing than to existing export-control coordination.
  • A “chokepoint deterrence” posture would require four standing capabilities rarely held simultaneously: (i) strategic-level stockpiles deep enough to absorb 12–18 months of multi-vector denial; (ii) surge-production authorities with peacetime exercise to verify they work; (iii) cross-jurisdictional corporate-state coordination with treaty-grade durability; (iv) credible counter-coercion options that target adversary chokepoints (financial, materials, energy) calibrated to deter without escalating. The US holds (iv) almost alone via SWIFT; the EU and Japan hold partial elements of (iii); none of the alliance currently holds (i) or (ii) at adequate depth. See Deterrence and Defence.

Standing Gaps

To elevate the assessments in this note from Moderate to High confidence, the following primary-source data is required:

  • China’s share of global rare-earth processing (vs extraction), by element class, for 2024–2025. Public estimates cluster around 85–95% for heavy rare earths but lack element-level granularity and verified source. USGS Mineral Commodity Summaries (annual) and IEA Critical Minerals Outlook are the canonical references but underspecify the processing stage.
  • US and EU domestic rare-earth processing capacity timelines, project-by-project: MP Materials (Mountain Pass, CA — separation facility ramp); Lynas USA (Texas heavy rare-earth facility); Solvay (La Rochelle re-start); Iluka (Eneabba, AU). Required: nameplate capacity, real-world ramp curves, off-take commitments, federal-funding triggers.
  • DoD and RAND verification of corporate chokepoint replacement horizons for ASML EUV, TSMC advanced-node foundry, Nvidia/CUDA stack. Public claims of “10+ years” are widely cited but rest on a small evidence base; an internal DoD or DARPA timeline study would materially shift confidence.
  • Open-source mapping of Chinese equity positions in LATAM critical-mineral processing (not extraction). Extraction stage is well-tracked by AidData, MERICS, and Boston University Global Development Policy Center; processing-stage ownership is opaque.
  • Empirical baseline on multi-vector chokepoint coordination signals: whether the 2026 Hormuz–rare-earth simultaneity reflects pre-coordination, parallel opportunism, or pure coincidence requires SIGINT-grade evidence not available in open sources. Open-source proxy: alignment of pre-activation diplomatic and military signalling between Tehran and Beijing in the 60–90 days preceding activation.
  • CIPS, SPFS, mBridge actual-flow volumes with geographic and sectoral decomposition. Current public figures conflate yuan-clearing, cross-border messaging, and CBDC pilots; disaggregation would clarify the real erosion rate of the SWIFT chokepoint.

Key Connections

Delta Update — 2026-05-02

NEGISC source: Chokepoint Strategy: Deepened Analysis (jul 2025). The document’s contribution is doctrinal grounding — it situates the chokepoint frame within classical maritime strategy and the modern threat matrix in ways the original note treated implicitly. Non-duplicated additions follow.

Mahanian Doctrinal Lineage

Chokepoint logic descends directly from Alfred Thayer Mahan’s Influence of Sea Power upon History (1890): national greatness flows from “command of the sea,” achieved through control of trade routes via dominant navy, merchant marine, and global naval bases. Admiral John Fisher’s “five keys to the world” (Dover, Gibraltar, Suez, Malacca, Cape) is the definitive historical template; US naval expansion at the turn of the 20th century — Puerto Rico, Guam, Philippines — was strategy executed as chokepoint acquisition. The contemporary US Indo-Pacific posture is the same logic, modernised. Fact (doctrinal).

UNCLOS Transit Passage as Mahanian Codification

The 1982 UNCLOS Part III transit-passage regime is best understood not as a constraint on sea power but as its legal codification. The Cold War expansion of territorial seas to 12 nautical miles enclosed dozens of formerly high-seas straits; the US and USSR drove the transit-passage regime specifically to preserve their global naval mobility. Transit passage cannot be suspended by littoral states, applies to submarines in normal (submerged) mode, and overrides innocent-passage restrictions. The result: the legal architecture of UNCLOS guarantees the Mahanian operating posture — sea power retains the freedom to “concentrate force at decisive points” by international treaty. Assessment, High confidence.

This produces a structural tension at every chokepoint: littoral state sovereignty (de jure) vs global maritime power’s transit imperative (de facto). Iran’s harassment in Hormuz, Turkey’s Montreux invocations on the Bosphorus, and PRC pressure on Malacca-adjacent routes all exploit this gap. The 2022 Turkish invocation of Montreux to bar non-Black-Sea Russian warships is the cleanest recent demonstration of how a sovereign state can convert the legal ambiguity into hard strategic effect.

”Democratization of Denial” — The Houthi Inflection

The 1980s Tanker War required state-level actors with air forces and Exocet ASCMs to credibly threaten Hormuz. The 2023–2024 Houthi Red Sea campaign demonstrates a collapse of the entry barrier: a non-state actor using off-the-shelf UAS, modified ballistic missiles, one-way attack USVs (e.g., Toofan-1), and Iranian-supplied components achieved an ~80% reduction in Bab-el-Mandeb container traffic in early 2024. Operation Prosperity Guardian responded but did not neutralise. Fact.

Doctrinal implication: the ability to exert strategic-level coercion at a global chokepoint is no longer the exclusive domain of great powers. This compounds the multi-vector activation problem already noted — adversary states can now credibly threaten chokepoints through proxies with plausible deniability, lowering both the cost and the political risk of activation.

Climate as a Forcing Function

The Panama Canal drought episodes of 2023–2024 (freshwater lock dependency, Gatun Lake levels) produced transit restrictions equivalent to a partial blockade. ~40% of US container traffic and a material share of US Gulf-Coast LNG exports to Asia transit Panama; restrictions forced rerouting via Suez (which then encountered the Houthi campaign) or Cape of Good Hope (which adds 15–25 days). Fact.

This validates a convergence pattern the original note treated implicitly: a climatic event in one hemisphere directly amplifies a military-security crisis in another. Chokepoint stress testing must integrate climatological forecasting; the threat matrix is no longer separable from the IPCC scenario set.

Hybrid Threats to Subsea Infrastructure

Russian “shadow fleet” activity in the Baltic and Arctic targeting fibre-optic cables and pipelines (Newnew Polar Bear cable cut, Balticconnector incident, ongoing AIS-spoofed shadow tankers) extends the chokepoint frame to submarine cable landing stations and cable transit corridors. ~99% of intercontinental data transits ~500 cable systems concentrated through a handful of landing nodes; these now warrant the same chokepoint-defence treatment as Hormuz or Malacca. PRC-flagged vessels have been implicated in at least two Baltic incidents (Newnew Polar Bear, Yi Peng 3), creating attribution complexity that mirrors the Houthi proxy model. Fact / Assessment, Moderate-High confidence.

Technological Inversion — A2/AD Favouring the Defender

Convergence of three threat classes is shifting the chokepoint offence-defence balance toward the geographically advantaged defender:

  1. Saturation drone swarms impose unsustainable economic exchange ratios (drone < $10k vs interceptor > $1M); finite magazine depth on AEGIS, Patriot, and CIWS becomes the binding constraint.
  2. Hypersonic weapons (HGV / HCM) hold fixed land infrastructure — port facilities, fuel depots, command nodes, forward bases — at conventional risk from standoff range with minimal warning.
  3. Smart sea mines (multi-influence, UUV-deliverable, “weapons that wait”) reconstitute the area-denial layer that US MCM capability has been allowed to atrophy against.

Iran’s layered Hormuz A2/AD network is the archetype: shore-based ASCMs and ASBMs, swarming fast attack craft, mines, integrated air defence. The PLA equivalent in the Taiwan Strait and First Island Chain is the same logic at greater scale and technical maturity. Assessment, High confidence.

Operational implication: forcing a contested chokepoint against a competent A2/AD defender is becoming prohibitively costly. Joint Forcible Entry doctrine (JP 3-18, Littoral Maneuver, EABO/ACE) is the US doctrinal answer, but JLOTS readiness gaps (DoDIG-2025-091) suggest the answer is currently aspirational. The chokepoint deterrence posture from the original note’s “Strategic Implications” section must now incorporate the assumption that forcing a chokepoint is increasingly out of reach, and that bypassing via overland corridors (CPEC as PRC’s Malacca hedge) is the structural counter-strategy.

Sources Added

  • Cohen / Cohen-revised geopolitical hierarchy frame — see Shatterbelts and Gateways for the systemic-geopolitics layer this note now connects to.
  • US Naval Institute Proceedings series on Hormuz, Bab al-Mandeb, Taiwan Strait (2023–2025). High confidence.
  • DoDIG-2025-091, JLOTS readiness evaluation. High confidence for capability-gap framing.
  • Jamestown Foundation, “Hybrid Attacks Rise on Undersea Cables in Baltic and Arctic Regions” (2025). Moderate-High confidence.
  • EIA, Panama Canal LNG transit data 2023–2024. High confidence.

Sources

  • Urbanomics, “A Graphical Summary of Chokepoints in Global Trade” (2026). Confidence: Low — secondary blog source; useful as a structuring frame and for the corporate-chokepoint figures (ASML, TSMC, Nvidia market shares), not as a primary citation. Original clipping ID: a-graphical-summary-of-chokepoints-in-global-trade.
  • USGS, Mineral Commodity Summaries 2025. Confidence: High — canonical source for extraction figures; underspecifies processing stage.
  • IEA, Critical Minerals Outlook 2024–2025. Confidence: High — best public source on processing-stage concentration, with explicit caveats on data gaps.
  • Qiao Liang and Wang Xiangsui, Unrestricted Warfare (PLA Press, 1999). Confidence: High as doctrinal source; foundational text for the chokepoint-as-coercion frame in PRC strategic thought. Cross-linked at Unrestricted Warfare.
  • BIS Committee on Payments and Market Infrastructures, statistics on cross-border payment systems (CIPS, SPFS, mBridge). Confidence: High for headline figures; Moderate for geographic decomposition.
  • SWIFT RMB Tracker (monthly). Confidence: High for yuan share of SWIFT messaging; the relevant figure is what is not captured by SWIFT, which the tracker cannot measure directly.
  • AidData, Banking on the Belt and Road (2023) and updates. Confidence: High for BRI lending and equity positions; coverage of LATAM processing-stage assets remains partial.
  • US Department of Energy, Critical Materials Assessment (most recent edition). Confidence: High for US perspective on substitution timelines; inherits classification gaps on adversary capacity.
  • CSIS, China Power Project, working papers on Hormuz, Taiwan Strait, and rare-earth chokepoints (ongoing). Confidence: High as analytical synthesis; not a primary source.
  • RAND Corporation, studies on semiconductor supply chain and Taiwan contingency planning (2022–2025 series). Confidence: High for replacement-horizon estimates; the public versions are unclassified summaries of internally classified work, so the underlying data is partly black-boxed.

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