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  • Topic / Tool | Last updated: 07 Nov 2025
HERMES

HERMES is an innovative tool designed by the JRC to help navigate the complex world of international trade codes. It tracks product code changes, offering insights through easy-to-understand visuals and interactive features. By simplifying the European Union's classification system, it reveals how tariffs are determined and how goods are categorised.

HERMES, name derived from the Greek god of trade, was developed to track the history of the nomenclature of goods in trade in a certain time window. 

It is particularly useful for customs services, law enforcement agencies, international traders, and other economic operators who need to follow the evolution of product codes for tariffs and statistical purposes. It forms part of the THESEUS front-end interface (accessible only to authorised users) and is based on annual updates to the Combined Nomenclature classification system, sourced from Eurostat's RAMON website.

HERMES uses several features to facilitate users' understanding of product code history. One of the main functionalities is the ability to visualise changes in product codes through graphs and tables, distinguishing between filtered results (direct relationships linked to a reference code) and non-filtered results (all possible paths). The tool allows users to interactively select product codes by typing in keywords or code numbers and retrieve their history, including changes and descriptions in different languages. Moreover, HERMES offers the "Tree Hierarchy" procedure, which returns a hierarchical tree of direct product code relationships, providing a detailed perspective on how codes have evolved over time.

Use HERMES 

 

This document describes the architecture and use of a tool introduced to track the history of the nomenclature of goods in trade in a certain time window. The name of system, HERMES, is adopted from the name of the Greek...