Thorsten Haeser, a German citizen, is the Chief Business Officer of Sunrise, a position he has held since August 2024. Before joining Sunrise, from 2019 to 2023, he was the Chief Commercial Officer of Nets SE/ Concardis GmbH. Thorsten Haeser held several positions at O2 (Telefónica) from 1998 to 2010 including vice president wholesale & strategic partnerships, member of the executive board and general counsel of O2 GmbH. Mr. Haeser has also served as a member of the executive board of each of SIXT AG and Versatel GmbH, and most recently of Hapag-Lloyd. Thorsten Haeser graduated as a junior lawyer from Ludwig Maximilian Universität.