Inorganic Chemicals · HS6: 283990 · Source: SISCOMEX
Vigência: 01/04/2022 – 31/12/9999
The first 6 digits of any NCM code (283990) correspond to the international Harmonized System (HS) subheading — identical across all WCO member countries. This enables direct comparison with US HTS, UK Commodity Codes, EU CN/TARIC, and Canadian tariff items.
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