3507.10 Enzymes; rennet and concentrates thereof
A full HS code. These six digits are what goes on a customs declaration, and they mean the same thing in every country that uses the Harmonized System.
Section VI, Chemical Products — inorganic and organic chemicals, pharmaceuticals, fertilisers, paints and cosmetics.
- 35 Chapter Albuminoidal substances; modified starches; glues; enzymes
- 07 Heading Enzymes; prepared enzymes not elsewhere specified or included
- 10 Subheading Enzymes; rennet and concentrates thereof
Chapter 35 covers albuminoidal substances; modified starches; glues; enzymes: protein-based and starch-derived industrial materials used in adhesives, food processing, textiles and paper manufacturing. Classification tip: Enzymes used in food processing versus industrial enzymes (for detergents or textiles) are classified the same way here regardless of end use: the chemical nature of the product, not its application, drives the code.
All of chapter 35Other codes under 35.07
The wording above is the Harmonized System nomenclature as published by the World Customs Organization, HS 2022 edition. It is a classification reference, not a tariff: it carries no duty rates, and it stops at six digits — the importing country adds its own beyond that.
Classification is decided by the General Rules of Interpretation and the section and chapter notes, and it is the importing country’s customs authority that makes it binding.
Shipping goods under 3507.10? A customs hold shows up as a milestone that stops moving — follow the container or the air waybill from departure to delivery.
Track a shipment3507.10 FAQ
3507.10 covers enzymes; rennet and concentrates thereof. It sits under heading 35.07 (enzymes; prepared enzymes not elsewhere specified or included) in chapter 35, Section VI of the Harmonized System.
It is the international part of it. Six digits are the same in every country that applies the Harmonized System; the importing country then extends them to eight or ten for its own tariff and statistics. Declare 3507.10 plus whatever national digits the destination’s tariff schedule adds to it.
The General Rules of Interpretation, read together with the notes to Section VI and to chapter 35. A description that reads right is not enough on its own — the notes routinely pull goods out of the chapter they obviously belong to and put them somewhere else. Where duty or licensing turns on the answer, ask the importing country’s customs authority for a binding ruling.
A wrong or missing code is one of the common reasons customs holds a container, and a hold shows up as a milestone that stops moving. Watch for it in the container tracking app, on the air waybill in the air cargo tracker, or through the tracking API.