# Concept: Commodity Trading — Variant 46

(Variant for commodity_trading domain)

## HS Code Assignment Rules
- HS code must be assigned based on the primary commodity, not packaging
- Mixed shipments: classify by the component with highest value
- Re-exported goods: use original HS code, not intermediate processing code

## Prohibited Combinations
- Hazmat + food ingredients in same container
- Temperature-controlled + ambient goods without partition
- Overweight containers on specific routes (max varies by port)

## Carrier Matching Rules
When matching carriers across WMS and TMS:
- Use SCAC code as primary identifier
- Carrier name may differ (trade name vs legal name)
- After M&A, old carrier codes may persist in legacy systems