Every tier, down to the fibre.
A garment's supply chain is not a list of suppliers: it is a chain in which each company knows only the one above it. Trama rebuilds it from the documents, derives the tiers from them and shows you exactly where it stops.



The hierarchy builds itself
«Tier 2» is not a pre-filled field: it is the distance from the finished garment, computed from the links. If a link changes, the tier updates by itself.
Every link says who declared it
A company enters the chain because somebody declared they bought from it, and that declaration has a document and a date.
Where the chain stops is where the work begins
The node nobody has named yet is drawn, not hidden. That is where the next request starts from.