| (d) | The components of deferred tax assets and liabilities were as follows: |
| | | Deferred tax assets | | Deferred tax liabilities | | Total | | ||||||||||||
| | | December 31, 2017 | | December 31, 2016 | | December 31, 2017 | | December 31, 2016 | | December 31, 2017 | | December 31, 2016 | | ||||||
| | | (in thousands) | | ||||||||||||||||
| Investment tax credits | | $ | 656,480 | | | 840,112 | | | - | | | - | | | 656,480 | | | 840,112 | |
| Tax losses carryforwards | | | 3,942,012 | | | - | | | - | | | - | | | 3,942,012 | | | - | |
| Unrealized loss and expenses | | | 284,084 | | | 182,443 | | | (61,345) | | | (3,495) | | | 222,739 | | | 178,948 | |
| Inventories write-down | | | 644,887 | | | 69,938 | | | - | | | - | | | 644,887 | | | 69,938 | |
| Foreign investment gains under the equity method | | | - | | | - | | | (890,153) | | | (1,091,023) | | | (890,153) | | | (1,091,023) | |
| Remeasurement of defined benefit plans | | | 155,930 | | | - | | | - | | | - | | | 155,930 | | | - | |
| Foreign operations – foreign currency translation differences | | | 279,517 | | | - | | | (44,992) | | | (81,847) | | | 234,525 | | | (81,847) | |
| Others | | | 1,106,104 | | | 644,361 | | | (641,737) | | | (653,899) | | | 464,367 | | | (9,538) | |
| Deferred tax assets (liabilities) | | $ | 7,069,014 | | | 1,736,854 | | | (1,638,227) | | | (1,830,264) | | | 5,430,787 | | | (93,410) | |