| Revenue | 31/12/2018 | 31/12/2017 | 31/12/2016 | 31/12/2015 |
| Total revenue | 2,353,588,000 | 2,015,890,000 | 1,616,903,000 | 1,725,428,000 |
| Cost of revenue | 1,539,010,000 | 1,285,716,000 | 959,640,000 | 1,056,795,000 |
| Gross profit | 814,578,000 | 730,174,000 | 657,263,000 | 668,633,000 |
| Operating expenses |
| Research development | - | - | - | - |
| Selling general and administrative | 218,013,000 | 202,426,000 | 191,917,000 | 189,352,000 |
| Non-recurring | - | - | - | - |
| Others | 208,154,000 | 193,828,000 | 192,522,000 | 178,774,000 |
| Total operating expenses | 2,205,763,000 | 1,929,243,000 | 1,573,011,000 | 1,641,047,000 |
| Operating income or loss | 147,825,000 | 86,647,000 | 43,892,000 | 84,381,000 |
| Income from continuing operations |
| Total other income/expenses net | -32,619,000 | -33,558,000 | 1,248,000 | -26,566,000 |
| Earnings before interest and taxes | 147,825,000 | 86,647,000 | 43,892,000 | 84,381,000 |
| Interest expense | -22,352,000 | -22,408,000 | -23,348,000 | -24,328,000 |
| Income before tax | 115,206,000 | 53,089,000 | 45,140,000 | 57,815,000 |
| Income tax expense | 42,790,000 | 16,296,000 | 15,768,000 | 15,726,000 |
| Minority interest | 196,372,000 | 187,799,000 | 183,711,000 | 164,318,000 |
| Net income from continuing ops | 72,416,000 | 36,793,000 | 29,372,000 | 42,089,000 |
| Non-recurring events |
| Discontinued operations | - | - | - | - |
| Extraordinary items | - | - | - | - |
| Effect of accounting changes | - | - | - | - |
| Other items | - | - | - | - |
| Net income |
| Net income | 52,591,000 | 22,798,000 | 7,857,000 | 35,517,000 |
| Preferred stock and other adjustments | - | - | - | - |
| Net income applicable to common shares | 52,591,000 | 22,798,000 | 7,857,000 | 35,517,000 |