(Telecompaper) Zain Group said revenues decreased by 8 percent to KWD 508 million for the first six months to 30 June. EBITDA for the period reached KWD 212 million, down 17 percent year-on-year, giving an EBITDA margin of 41.7 percent. Net income remained stable at KWD 82 million, and earnings per share for the half-year stood at KWD 0.21. The Middle East mobile operator ended the period with 45.2 million customers.