| Revenue | 12/31/2018 | 12/31/2017 | 12/31/2016 | 12/31/2015 |
| Total Revenue | 46,159,478 | 36,917,619 | 37,651,667 | 43,581,241 |
| Cost of Revenue | 40,010,100 | 33,312,995 | 34,187,941 | 39,290,526 |
| Gross Profit | 6,149,378 | 3,604,624 | 3,463,726 | 4,290,715 |
| Operating Expenses |
| Research Development | - | - | - | - |
| Selling General and Administrative | 1,652,880 | 1,654,908 | 2,239,028 | 2,582,485 |
| Non Recurring | - | - | - | - |
| Others | 34,992 | -91,731 | -127,847 | -97,000 |
| Total Operating Expenses | 41,707,886 | 34,876,172 | 36,299,122 | 41,776,011 |
| Operating Income or Loss | 4,451,592 | 2,041,447 | 1,352,545 | 1,805,230 |
| Income from Continuing Operations |
| Total Other Income/Expenses Net | -2,294,161 | -2,084,723 | -3,934,160 | -7,899,638 |
| Earnings Before Interest and Taxes | 4,451,592 | 2,041,447 | 1,352,545 | 1,805,230 |
| Interest Expense | -1,177,686 | -1,323,448 | -1,540,797 | -1,471,526 |
| Income Before Tax | 2,157,431 | -43,276 | -2,581,615 | -6,094,408 |
| Income Tax Expense | -168,951 | 295,391 | 304,314 | -1,498,422 |
| Minority Interest | 207,967 | 248,740 | 246,517 | 284,582 |
| Net Income From Continuing Ops | 2,326,382 | -338,667 | -2,885,929 | -4,595,986 |
| Non-recurring Events |
| Discontinued Operations | - | - | - | - |
| Extraordinary Items | - | - | - | - |
| Effect Of Accounting Changes | - | - | - | - |
| Other Items | - | - | - | - |
| Net Income |
| Net Income | 2,303,868 | -359,360 | -2,890,811 | -4,551,438 |
| Preferred Stock And Other Adjustments | - | - | - | - |
| Net Income Applicable To Common Shares | 2,303,868 | -359,360 | -2,890,811 | -4,551,438 |