- TIM Brasil reported financial and operational results for the second quarter of 2017, highlighting improvements across key metrics. Mobile service revenues grew 5% year-over-year driven by higher postpaid subscriber additions and a shift to higher-value customers. EBITDA margins expanded significantly to 15.5% due to revenue growth and cost optimization efforts. The company's 4G network coverage also expanded rapidly, reaching over 1,850 cities during the quarter.