All interested in modern mining and energy technologies are warmly invited to visit the scientific and technical conference KOMTECH 2021 http://imtech.komag.eu/en/komtech-en/ . As part of the KOMTECH 2021 conference, on October 12, 2021, at 12:30, a plenary session dedicated to the HEET II project will be organized. A further progress meeting is also scheduled on the same day.