According V1000 2012 - top 1000 corporate income tax in Vietnam by Vietnam Assessment Corporation (Vietnam Report), in top 10 highest iincome tax corporate have 3 corporate telecommunications, it is MobiFone, VNPT and Viettel.
In the telecommunications business, MobiFone impressive record by taxpayers 2nd in the rankings V1000 2012. For years, MobiFone mobile network is considered as the most efficient operation. By the end of 2011, the average labor productivity of employees MobiFone 6.7 billion VND / person / year. Labor productivity of employees MobiFone more than 5 times higher than the average of VNPT and about 1.5 times higher than Viettel.
According to new data published by the Ministry of Information & Communications, MobiFone is the average revenue per subscriber highest (about 4 - 5USD / subcriber). This number of MobiFone network is higher than the number 2nd and 3rd mobile operators in Vietnam from 1 - 2 USD / subscribers. Return on equity of MobiFone highest is 49.7%. According to statistics from VNPT, MobiFone only 4% of the labor force, but account for 40% of revenue and 50% profit from the corporation.