A structure based versatile tool to assign Harmonized (Tariff) System codes for international shipping and accurately classify substances for global trade.

Automatic determination of Harmonized Codes based on chemical structure

cHemTS automates the time-consuming process of assigning the correct HS codes to substances during international shipment. You can assign codes quickly to your compounds to be shipped, or easily analyze the tariff code alternatives based on additional data - cHemTS is your accessible solution.


  • Single check and File check
  • Easy integration (Restful API)
  • Easy deployment (docker images, installers)
  • Seamless integration with corporate authentication (AD, LDAP)
  • Supported content:
    • European Union
    • India
    • Switzerland
    • United States (HTS & Schedule B)
    • United Kingdom
    • China
    cHemTS features for harmonized tariff schedule

    cHemTS is available as

  • SaaS: pre-deployed on a server maintained by ChemAxon in the cloud
  • On premise: easy to deploy software-data package
  • cHemTS is designed in the same framework as Compliance Checker, so users with licenses to both systems access them from the same interface

    cHemTS available as hosted service, on-prem or SaaS

    The Harmonized System

    The HS code is a worldwide terminology for the classification of goods. It helps customs in various countries to make sure that they are talking about the same product and the HS code of a product also determines the import duties. Worldwide it is a six-digit code framework for grouping and categories different merchandise and goods being exported. Beyond the first 6 digits countries can add their own Legal Notes according to their own tariff and statistical requirements.

    US harmonized tariff code of aspirin - cHemTS