| Revenue | 31/12/2018 | 31/12/2017 | 31/12/2016 | 31/12/2015 |
| Total revenue | 431,539.196 | 331,851.434 | 245,034.849 | 204,772.478 |
| Cost of revenue | 390,176.771 | 298,095.703 | 224,182.66 | 185,585.206 |
| Gross profit | 41,362.425 | 33,755.731 | 20,852.189 | 19,187.272 |
| Operating expenses |
| Research development | - | - | - | - |
| Selling general and administrative | 12,068.806 | 8,283.136 | 8,552.75 | 8,356.999 |
| Non-recurring | - | - | - | - |
| Others | - | - | 2,839.087 | 3,890.281 |
| Total operating expenses | 403,022.811 | 306,752.541 | 235,983.583 | 198,229.782 |
| Operating income or loss | 28,516.385 | 25,098.893 | 9,051.266 | 6,542.696 |
| Income from continuing operations |
| Total other income/expenses net | -2,143.174 | -2,942.526 | 912.333 | 2,787.219 |
| Earnings before interest and taxes | 28,516.385 | 25,098.893 | 9,051.266 | 6,542.696 |
| Interest expense | - | - | - | - |
| Income before tax | 26,373.211 | 22,156.367 | 9,963.599 | 9,329.915 |
| Income tax expense | 4,436.328 | 3,270.956 | 1,104.509 | 1,010.89 |
| Minority interest | 3,520.404 | 3,061.404 | 1,510.393 | 2,215.096 |
| Net income from continuing ops | 21,936.883 | 18,885.411 | 8,859.09 | 8,319.025 |
| Non-recurring events |
| Discontinued operations | - | - | - | - |
| Extraordinary items | - | - | - | - |
| Effect of accounting changes | - | - | - | - |
| Other items | - | - | - | - |
| Net income |
| Net income | 19,412.077 | 16,273.279 | 7,615.625 | 6,541.488 |
| Preferred stock and other adjustments | - | - | - | - |
| Net income applicable to common shares | 19,412.077 | 16,273.279 | 7,615.625 | 6,541.488 |