From 15th to 19th September 2025, the 13th International Freiberg Conference on Circular Carbon Technologies (https://gasification-freiberg.com/) took place in Prague, Czech Republic. In his presentation, Dr.-Ing. Franz Fehse discussed the lump coke production from fossil and renewable feedstocks by stamped-charged coking. The presented results were generated within an industrial research project with thyssenkrupp Uhde GmbH.