| Revenue | 31/12/2018 | 31/12/2017 | 31/12/2016 | 31/12/2015 |
| Total revenue | 90,449.314 | 117,530.045 | 111,098.622 | 103,289.822 |
| Cost of revenue | 73,057.68 | 95,669.415 | 89,179.149 | 89,521.661 |
| Gross profit | 17,391.634 | 21,860.63 | 21,919.473 | 13,768.161 |
| Operating expenses |
| Research development | - | - | - | - |
| Selling general and administrative | 9,001.262 | 9,963.749 | 10,042.487 | 9,027.774 |
| Non-recurring | - | - | - | - |
| Others | - | - | - | - |
| Total operating expenses | 82,058.942 | 105,633.164 | 99,221.636 | 98,549.435 |
| Operating income or loss | 8,390.372 | 11,896.881 | 11,876.986 | 4,740.387 |
| Income from continuing operations |
| Total other income/expenses net | -1,819.238 | 3,089.54 | 4,629.623 | 2,865.259 |
| Earnings before interest and taxes | 8,390.372 | 11,896.881 | 11,876.986 | 4,740.387 |
| Interest expense | -1,133.303 | -76.308 | -72.183 | -61.945 |
| Income before tax | 6,571.134 | 14,986.421 | 16,506.609 | 7,605.646 |
| Income tax expense | 924.762 | 2,270.748 | 2,168.54 | 601.805 |
| Minority interest | -864.418 | -864.418 | -864.418 | -864.418 |
| Net income from continuing ops | 5,646.372 | 12,715.673 | 14,338.069 | 7,003.841 |
| Non-recurring events |
| Discontinued operations | - | - | - | - |
| Extraordinary items | - | - | - | - |
| Effect of accounting changes | - | - | - | - |
| Other items | - | - | - | - |
| Net income |
| Net income | 6,487.923 | 12,715.673 | 14,338.069 | 7,004.744 |
| Preferred stock and other adjustments | - | - | - | - |
| Net income applicable to common shares | 6,487.923 | 12,715.673 | 14,338.069 | 7,004.744 |