What is the fine-grained topic of the following text: Thanks to the organization by Petra Schmeing (Events) at ENERGETIX headquarters in Bingen, who worked with top business partners, Anke Hesse-Michaelis and Josette Desassis, it was possible to stage an event that delivered benefits to all the participants. Only return the topic.
Organization of an event at ENERGETIX headquarters by Petra Schmeing