The CIMAC Working Group 7 Fuels is the largest of the CIMAC working groups. It consists of 10 subgroups. Now, WG 7 came together in Frankfurt for a two-day-meeting at the VDMA facilities. The first day was dedicated to breakout sessions of subgroups, some of them in hybrid format. On the second day, a full group meeting in presence took place. The agenda comprised recent activities in ISO 8217 specifications of marine fuels as well as discussion about organic chlorides, and the exchange with other WG. There were vivid discussions especially about the future membership structure of the group, since there is a very high interest in the industry to participate actively in WG 7.