| Revenue | 12/31/2018 | 12/31/2017 | 12/31/2016 | 12/31/2015 |
| Total Revenue | 4,531,552 | 4,443,351 | 4,128,828 | 4,014,052 |
| Cost of Revenue | 3,740,986 | 3,645,144 | 3,351,775 | 3,324,475 |
| Gross Profit | 790,566 | 798,207 | 777,053 | 689,577 |
| Operating Expenses |
| Research Development | - | - | - | - |
| Selling General and Administrative | -1,878 | 144 | 1,784 | 1,784 |
| Non Recurring | - | - | - | - |
| Others | 168,638 | 166,673 | 151,826 | 140,955 |
| Total Operating Expenses | 4,127,951 | 4,019,447 | 3,721,703 | 3,677,177 |
| Operating Income or Loss | 403,601 | 423,904 | 407,125 | 336,875 |
| Income from Continuing Operations |
| Total Other Income/Expenses Net | -86,730 | -73,877 | -83,428 | -89,822 |
| Earnings Before Interest and Taxes | 403,601 | 423,904 | 407,125 | 336,875 |
| Interest Expense | -84,614 | -82,788 | -87,848 | -91,179 |
| Income Before Tax | 316,871 | 350,027 | 326,228 | 247,053 |
| Income Tax Expense | 47,485 | 65,041 | 93,132 | 70,664 |
| Minority Interest | - | - | - | 124,043 |
| Net Income From Continuing Ops | 269,386 | 284,986 | 233,096 | 176,389 |
| Non-recurring Events |
| Discontinued Operations | 2,932 | -3,783 | -168,663 | -798,824 |
| Extraordinary Items | - | - | - | - |
| Effect Of Accounting Changes | - | - | - | - |
| Other Items | - | - | - | - |
| Net Income |
| Net Income | 272,318 | 281,203 | 64,433 | -622,435 |
| Preferred Stock And Other Adjustments | - | - | - | - |
| Net Income Applicable To Common Shares | 272,318 | 280,432 | 63,748 | -623,120 |