- Trace shared upstream dependencies before calling a component dual sourced.
- Include qualification time and tooling access in recovery estimates.
- Test one concrete disruption with named decision owners.
Two contracts can conceal one bottleneck
An automotive purchasing team may have two approved suppliers for an electronic assembly and still depend on one semiconductor fabrication plant. The same problem can occur with a specialist coating, a toolmaker or a port. Counting supplier names therefore gives the board a weaker picture of resilience than mapping the production dependency behind them.
The UK critical imports strategy identifies diversification, visibility and resilience as connected concerns. The practical implication for a manufacturer is to ask which disruption would stop both sources at once. That question belongs in supplier reviews before a shortage forces a hurried investigation.
Price the recovery, not just the part
Start with components whose absence stops shipment and for which substitution requires lengthy engineering approval. Record the manufacturing location, critical upstream process, tooling ownership, usable inventory and realistic time to restart. Separate a supplier's promised lead time from the time needed to produce a conforming part at an alternative site.
A slightly more expensive source may justify its price if it genuinely shortens recovery. Conversely, inventory may be a better response to a short disruption than maintaining an unqualified second source. The commercial comparison should include validation work, storage, obsolescence and the value of production protected.
Give the recovery plan an owner
Run a tabletop exercise around a specific failure: a site outage, a blocked route or a critical supplier losing production access. Ask who releases stock, who authorises substitutions and who informs customers. A plan that depends on unnamed people or unavailable tooling is not yet an operating plan.
The useful board measure is exposure with an evidenced response. Report which bottlenecks have a tested alternative, which rely on buffers and which remain accepted risks. That makes resilience a capital allocation decision rather than a reassuring supplier count.
Test the recovery plan, not the supplier count
- Pick a shipment-stopping component and map the shared site, process, tooling and logistics dependencies behind each approved supplier.
- Ask engineering to evidence the time needed to qualify an alternative. Compare that interval with usable stock and the customer commitment.
- Assign an owner to run a disruption exercise and record the unresolved exposure, spending decision and date for the next review.
Editorial prompts for your operation. Confirm the evidence with the responsible specialists.
Sources & further reading
Department for Business and Trade: Critical imports and supply chains strategy ↗
Sources checked 2026-10-14. Corrections and feedback.
