From 11 to 16 December 2023, Prof.Mele and Dr.Giovanna Latronico attended IUMRS-ICAM/MRM 2023 Grand meeting in Kyoto, also organizing the Symposium B-1 “Thermoelectric Materials for Sustainable Development” was part of Cluster B (Energy) and was greatly successful, being the second symposium of the whole MRM conference in terms of contributions. Symposium B-1 got 90 submitted abstracts: 24 invited talks, 32 regular talks, 30 posters, 3 keynote speeches and the cluster B keynotes by Prof. Takeuchi, Toyota Technological Institute, Nagoya, Japan.