Chatham House has launched an online tool to facilitate the analysis of circular economy trade flows and trends. The circular economy trade data explorer uses the available data from UN Comtrade, and focuses on resources which are of particular significance to the circular economy. The data explorer organizes over 900 individual commodities into primary and secondary material categories. Primary materials include raw and intermediate bioeconomy products, including renewable resources from land and sea used for food, feed, construction, and bioenergy generation. Secondary materials covered are derived from both renewable and non-renewable resources, and include waste, scrap, and residue, secondary raw materials, and used goods.