The largest Ukrainian mobile operator UMC has increased its revenue and net income by 52% yoy in 2Q05. Its net margin is 30.6%. The company has increased its ARPU compared USD 10 to USD 10.8 since 1Q05, and reduced its subscriber acquisition costs from USD22 to USD14. Concorde Capital: Despite the claims by the mobile operator about the growth of its tax burden, the profitability of UMC has not decreased. Mobile operators had much better results than their fixed line competitor Ukrtelecom (UTEL: HOLD) which showed only 10% revenue growth yoy and posted net margin of 10.9%.