| 12. | Taxation |
| | | For the years ended | | ||||
| | | December 31, | | ||||
| | | 2016 | | 2015 | | ||
| | | $ | | $ | | ||
| Current | | | 1,471,933 | | | 809,629 | |
| Deferred | | | (32,756) | | | 9,107 | |
| Total income tax expense | | | 1,439,177 | | | 818,736 | |
| | | For the years ended December 31, | | ||||
| | | 2016 | | 2015 | | ||
| | | $ | | $ | | ||
| Income before tax | | | 7,066,954 | | | 4,279,006 | |
| | | | | | | | |
| Provision for income taxes at applicable income tax rate | | | 1,866,878 | | | 988,833 | |
| Effect of preferential tax rate | | | (959,453) | | | 60,060 | |
| R&D expenses eligible for super deduction | | | (546,088) | | | (546,156) | |
| Non-deductible expenses | | | 146,493 | | | 59,122 | |
| Change in valuation allowance | | | 931,347 | | | 256,877 | |
| Effective enterprise income tax | | | 1,439,177 | | | 818,736 | |
| | | December 31, | | December 31, | | ||
| | | 2016 | | 2015 | | ||
| | | $ | | $ | | ||
| | | | | | | ||
| Tax loss carry-forward | | | 4,274,881 | | | 3,382,543 | |
| Allowance for doubtful receivables | | | 121,932 | | | 47,197 | |
| Impairment for inventory | | | 98,276 | | | 217,733 | |
| Difference for sales cut-off | | | 14,245 | | | 33,071 | |
| Deferred income | | | 114,224 | | | 131,992 | |
| Property, plant and equipment subsidized by government grant | | | 468,313 | | | 490,883 | |
| Impairment for property, plant and equipment | | | 76,248 | | | - | |
| Total gross deferred tax assets | | | 5,168,119 | | | 4,303,419 | |
| Valuation allowance | | | (3,690,358) | | | (2,759,105) | |
| Total net deferred tax assets | | | 1,477,761 | | | 1,544,314 | |
| | | $ | | | |
| 2019 | | | | 300,520 | |
| 2020 | | | | 1,553,667 | |
| 2021 and thereafter | | | | 2,042,635 | |
| Total | | | | 3,896,822 | |