OT-Optima Telekom d.D. Announced earnings results for the first quarter ended March 31, 2019. For the first quarter, the company announced total revenue was HRK 136.733 million compared to HRK 134.051 million a year ago. Operating income was HRK 7.382 million compared to HRK 3.401 million a year ago. Net loss was HRK 549,000 compared to HRK 2.584 million a year ago.