Thessaloniki Water Supply & Sewerage Co S.A. Announced earnings results for the half year ended June 30, 2021. For the half year, the company announced sales was EUR 34.905 million compared to EUR 34.464 million a year ago. Operating income was EUR 8.240 million compared to EUR 7.111 million a year ago. Net income was EUR 5.935 million compared to EUR 4.837 million a year ago.