HS Code 300331

HS code 300331 is the World Customs Organization 6-digit HS 2022 subheading for "Medicaments (excluding goods of heading 3002, 3005 or 3006) consisting of two or more constituents which have been mixed together for therapeutic or prophylactic uses, not put up in measured doses or in forms or packings for retail sale : Other, containing hormones or other products of heading 2937 : Containing insulin". The first two digits (30) are the chapter — Pharmaceutical products — and digits 3-4 (3003) are the heading. Countries add further digits (8-10) for their national tariff line.

Common products classified under 300331 include insulin bulk, insulin mixtures, insulin preparations bulk and similar items matching containing insulin. The correct code still depends on the product's material, function and intended use.

Duty is set by the destination country, not by the 6-digit HS code alone. Start from the official tariff of your market — USITC HTS (US), TARIC / Access2Markets (EU), GOV.UK Trade Tariff (UK), CBSA (Canada), ABF (Australia) or Singapore Customs — and look up the full national code with China as the country of origin.

The first 6 digits (300331) are the same worldwide under the WCO Harmonized System. Beyond that, each country extends the code (HTS in the US, TARIC in the EU, etc.) and sets its own duty and tax rates.

Treat a supplier-provided code as a clue, not a final classification. It can be incomplete, China-export-specific, or mismatched to your destination's rules. Verify against the official tariff and your product's actual material and use.