KDDI Corp. said Friday its group net profit for the business first half to Sept. 30 soared 205.4 percent from a year earlier to 20.45 billion yen.

The nation's No. 2 telecom carrier attributed its robust earnings to efficient capital investment and greater efforts to cut costs, resulting in improved profitability in sectors such as network and solution businesses.

The firm posted a pretax profit of 42.44 billion yen in the first half, up 80.1 percent, with revenues of 1.39 trillion yen, down 4.9 percent.

Group net profit per share was 4,830.28 yen in the April-September period, well up from 1,578.55 yen a year earlier.

The company will pay an interim dividend of 895 yen per share, unchanged from the previous year.

For the full year through March 31, KDDI forecasts a net profit of 49 billion yen and a pretax profit of 90 billion yen on revenues of 2.77 trillion yen.

In the previous year, the company logged a net profit of 12.98 billion yen and a pretax profit of 78.76 billion yen on revenues of 2.83 trillion yen.