Start with the source
Every observed value retains its publisher, series, unit, location, period and retrieval lineage.
Methodology
Understand what each number represents.
NETSPIRES separates sourced facts, calculations, assumptions and model outputs so upstream movement is never presented as a supplier quote.
Calculate transparently
Derived values use stated equations and exact units. Calculations require a complete set of stated inputs.
Version the midpoint
Low, base and high values are documented reference assumptions with route, geography, confidence and review status.
Show uncertainty
The range communicates sensitivity. Model output remains separate from observed market data and supplier prices.
Use these questions in a supplier discussion
- Which benchmark, geography and period support the request?
- Which production route and feedstock apply to this material?
- How much of the upstream change is contractually passed through, and with what lag?
- Which conversion, logistics, tariff or grade-specific factors changed?
- What evidence would reverse the conclusion?