Likelihood, two years5Highly likelyto end-2028
Likelihood, ten years5Highly likelyto end-2036
Systemic impact3Significantglobal
National impact4Severetypical highly exposed nation
OnsetSudden
Duration (acute phase)1 year
Warning timeDays
ScopeGlobal
Recovery horizonYears
Capability loadHard 1/3Soft 1/3Economic 1/3domains loaded High
ConcurrencyStandalonetriggers 3 · triggered by 3
Confidence · movementhighnew

Rated at Standard Severe. Likelihood type: systemic. Source of scores: ginc-desk-v0.2.

03Narrative

Dateline: February 2028

The licence regime is announced as 'orderly'. Within a month, applications are backing up and approval depends on end-use declarations that no automotive supplier can honestly complete. A tier-two parts maker in Bavaria stops shipping door-control modules; the assembly plant runs out of them on day nine. In Hyderabad, a generics manufacturer learns that its intermediate supplier has lost its export permit, and a hospital pharmacy in Lusaka learns it three months later when the tender fails. Fertiliser buyers in East Africa discover that the alternative source has already been contracted by larger buyers at twice the price. Governments convene task forces, publish lists of critical inputs and discover they do not know the second and third tiers of their own supply chains. Stockpiles that looked ample on a spreadsheet turn out to be the wrong grade. Eighteen months in, two new refineries and one packaging plant have been announced; none is running. The supplier offers to resume exports to governments that sign side-letters on unrelated matters, and several do.

The dateline is illustrative, not a forecast. The narrative is hypothetical; the historical anchors below are real events.

04Summary

The dominant supplier of a critical input halts or licenses exports for a year. The input may be rare earth magnets, legacy semiconductors, active pharmaceutical ingredients, fertiliser, lithography tools or cloud compute. Substitution takes 18 to 36 months. Production lines, hospitals and farms discover their exposure through stoppages rather than audits. v0.2 widened this scenario from minerals and chips to any input with a supplier share above 40 per cent, following Norway's drug-shortage scenario and the Nexperia stoppage.

05Historical anchors

EventDateWhat happenedCalibrates
Nexperia export haltOctober 2025After the Dutch government took control of Nexperia on 30 September, China blocked exports from Nexperia's Chinese plants; European and Japanese carmakers warned of line stoppages within weeksspeed of stoppage; legacy chips
China rare earth controlsApril and October 2025Licensing of heavy rare earths and magnets; one-year suspension agreed 30 October 2025licensing as coercion
China rare earth embargo on JapanSeptember 2010Informal halt of exports for about two months during the Senkaku disputeprecedent and recovery
Global semiconductor shortage2021–2022Vehicle production cut by millions of units; lead times beyond 50 weekssubstitution lead times
Norway AKS 'drug shortage' scenario2019National scenario of pharmaceutical supply failuremedicines as critical input
Fertiliser and Black Sea2022Potash and nitrogen export disruption; prices doubledfertiliser pathway

06Parameters

Shown at their preset values. Parameters are not adjustable in this release and nothing on this page is computed from them. Custom settings run (Phase B) but are labelled 'non-standard run' and excluded from comparisons.

Common sliders at Standard Severe · read-only

1. Severity
majorsevere (Standard Severe)extreme
2. Duration (acute phase)
30 days90 days1 year (Standard Severe)3 years5 years
3. Onset
sudden (Standard Severe)rapid (weeks)gradual (years)
4. Warning time
nonedays (Standard Severe)months
5. Scope
nationalregionalglobal (Standard Severe)
6. Origin
naturalaccidentaladversarial (great power / neighbour / non-state) (Standard Severe)
Standard Severe: adversarial (great power)
7. External support
fullpartial (Standard Severe)none
8. Concurrency
standalone (Standard Severe)plus one named scenarioplus two
9. Policy response assumed
none (pure exposure)current plans executed (Standard Severe)best practice
Standard Severe: current plans
10. Recovery horizon
monthsyears (Standard Severe)structural

Scenario-specific parameters · read-only

ParameterDefaultRange or optionsNote
Input classrare earth magnetsoptions: legacy chips / APIs / fertiliser / lithography tools / cloud compute—
Supplier share of global supply70 per cent40–95—
Substitution lead time24 months6–48—
National stockpile coverage3 months0–12—
Licensing versus outright banlicensing—Ban at Extreme

07Transmission channels

  1. Export halt or licence backlog.
  2. Tier-two and tier-three stoppages surface within weeks.
  3. Price spike on alternative sources; larger buyers pre-empt supply.
  4. Production cuts, hospital shortages, planting delays.
  5. Side-letter diplomacy and selective resumption.

08Capability loading

High: capability band shifts expected under current plans. Medium: band shifts under 'none' policy response only. Low: strain without band shift. Loads are judgement-based until the Atlas connects. Domains link to the Atlas.

DomainLoadChannel
Hard
Critical technologyHighchips, tools, materials for electronics and defence
Defence and securityMediummunitions and platform components
Strategic infrastructureLowgrid and transport components
Soft
Government effectivenessHighsupply-chain visibility, stockpile policy, licensing diplomacy
Human capitalMediummedicines and health outcomes
Influence and cohesionLowpublic trust in government competence
Economic
Industry, trade and supplyHighstoppages, substitution cost
Macro-financialLowsectoral output and inflation
Energy and resourcesMediumtransition materials; fertiliser and food

09Stakeholders

Government

Relevance 4/5
Exposure
Not specified in v0.2
Actions
  • Map tier-two dependence for the 20 most critical inputs
  • Set stockpile grades, not just volumes
  • Pre-qualify alternative suppliers
Watch
  • Licence approval times

Technology

Relevance 3/5
Exposure
Not specified in v0.2
Actions
  • Inventory bills of materials to the component level
  • Dual-source where the supplier share exceeds 50 per cent
Watch
  • Export-control notices

Investors

Relevance 3/5
Exposure
Not specified in v0.2
Actions
  • Identify single-supplier exposure in portfolio companies
Watch
  • Lead-time indices

Public

Relevance 2/5
Exposure
Medicine availability
Actions
Not specified in v0.2
Watch
  • Pharmacy shortage lists

10Regional exposure

RegionExposureRationale
North AmericaMedium—
EuropeHighAutomotive, machinery, generic medicines
ChinaLowLow as supplier, Medium as importer of tools
Indo-PacificHighElectronics assembly
South AsiaMediumAPI intermediates, fertiliser
Gulf and Middle EastLow—
AfricaHighFertiliser, medicines, no stockpiles
Latin America and CaribbeanMedium—
Russia and EurasiaMedium—

11Early-warning indicators

IndicatorSourceThreshold
Export licence approval times and denial rates——
Supplier concentration by HS codeUN Comtrade—
Lead-time indicesISM, IHS—
Pharmacy shortage registersEMA, FDA—
Fertiliser price indicesWorld Bank—
Announced capacity for alternative supply versus commissioning dates——

12Compounds

Triggers
Triggered by
Amplifying trends
supply-chain concentrationjust-in-time inventoriesenergy-transition material demand
Key trends

From the GINC 250: trends rated Very high or Critical for this scenario. All S02 trend scores.

13Rating rationale

RatingBand or levelWhy
Likelihood, two years5Highly likelyTwo Standard Severe episodes in 2025 alone.
Likelihood, ten years5Highly likely—
Systemic impact3SignificantSectoral rather than economy-wide, but global in reach.
National impact4SevereFor manufacturing economies without stockpiles.
Confidencehigh—

Source of scores: ginc-desk-v0.2. Confidence refers to the rating, not the scenario. Calibration sources are listed with the anchors above and on the methodology page.

14Open questions

Contested assumptions for the panel to resolve.

  • Whether cloud compute and frontier models belong here or in S13.
  • How to treat 'friendly' supplier concentration (lithography tools) versus adversarial.

15Commentary

No signed commentary in this build.

16Version and citation

Version
0.2.0 · active
Change log
0.2.0 · 2 October 2026 · Entered the Library at v0.2 with GINC desk scores.
Full change log
Cite asGINC (2027). Scenario S02 Single-supplier cut-off, Scenario Library v0.2. scenarios.ginc.org/library/single-supplier-cut-offContent and data are published under CC BY 4.0.