How ImportYeti Maps HS Codes to NAICS
ImportYeti uses HS (Harmonized System) codes extracted from Bills of Lading (BOLs) as the base dataset. We then enrich this data by mapping HS codes to selected NAICS industry classifications.
HS codes describe what is being shipped (products).
NAICS codes describe what type of industry is associated with that shipment.
HS Codes Exist Only for “Goods-Based Industries”
HS classification applies only to physical goods being traded internationally. Service-based industries are not part of HS classification.
Mapped NAICS Sectors (Goods-Based Industries)
- 11 – Agriculture
- 21 – Mining
- 31–33 – Manufacturing ⭐ (primary focus)
- 92 – Public Administration
Not Mapped to HS Codes (Service & Indirect Sectors)
- 42 – Wholesale Trade
- 44–45 – Retail Trade
- 52–56 – Finance, IT, Administration
- 61 – Education
- 62 – Health Services
- 71–72 – Arts, Hospitality, Casinos, Hotels
Why We Focus on Manufacturing (31–33)
Manufacturing industries directly produce physical goods that are exported and imported. These goods have a clear and direct HS code representation in Bills of Lading.
Steel pipe manufacturer → HS 7304 (pipes and tubes)
Why We Do NOT Map Wholesale and Retail
Wholesale (42) and Retail (44–45) companies do not define what is being produced or shipped. They only act as distribution and sales layers for goods that already have HS codes.
We avoid mapping these sectors to prevent duplicate or noisy signals in supply chain analysis.
Why There Is No Digit-Based Mapping Rule
NAICS codes are not structurally linked to HS codes by numeric patterns. The first digit of NAICS does not determine HS compatibility.
“NAICS starting with 3 maps to HS codes, others do not”
Mapping is based on whether the industry produces physical goods (not digit position).