(Telecompaper) Asian mobile operator group Axiata posted a profit after tax of MYR 707 million for the second quarter, down 8 percent from MYR 769 million in the year-ago quarter. mainly from lower profit contribution from operations in Indonesia (XL) and higher foreign exchange losses. Revenues went up 4.8 percent to MYR 4.63 billion from MYR 4.42 billion, driven by contributions from Celcom, Robi, and Smart. Operating costs of the group increased by 11.7 percent to MYR 2.77 billion in Q2, mainly driven by Celcom, XL and Robi. As a result, group EBITDA decreased by 3.9 percent to MYR 1.86 billion, and the margin dipped by 3.6 percentage points to 40.3 percent. The group ended the quarter with 229.6 million subscribers across the group, up 11.5 percent year-on-year. Axiata reiterated FY 2013 guidance for revenue growth of 7.6 percent and EBITDA growth of 0.2 percent.