Specially designed process included an analysis of the attitudes and expectations of different groups of stakeholders on the activities of HT, its positive and negative impacts, and an in-depth insight into the challenges of sustainability, competitiveness, customer relationships and impact management from the perspective of Maruška Vizek (The Institute of Economics), Dejan Ljuština (PwC), Vesna Mamić (Croatian Trade Union of Telecommunications), Dražen Lučić, Ph.D., Domagoj Jurjević (HAKOM) and Vladimir Jelavić, Ph.D. (Croatian Association for Carbon Footprint Reduction).