 
 
|  17. | Business segment information | 
|  |  | Years ended December 31, |  | |||||||
|  |  | 2017(1) |  | 2016(1) |  | 2015(1) |  | |||
| Commercial |  |  |  |  |  |  |  |  |  |  | 
|  |  |  |  |  |  |  |  |  |  |  | 
| Interest income |  |  | 213,326 |  |  | 236,392 |  |  | 209,858 |  | 
| Interest expense |  |  | (92,745) |  |  | (96,017) |  |  | (82,697) |  | 
|  |  |  |  |  |  |  |  |  |  |  | 
| Net interest income |  |  | 120,581 |  |  | 140,375 |  |  | 127,161 |  | 
| Net other income  (2) |  |  | 18,926 |  |  | 16,333 |  |  | 21,492 |  | 
|  |  |  |  |  |  |  |  |  |  |  | 
| Total income |  |  | 139,507 |  |  | 156,708 |  |  | 148,653 |  | 
| Impairment loss from expected credit losses on loans and impairment loss from expected credit losses on loan commitments and financial guarantee contracts |  |  | (9,928) |  |  | (35,112) |  |  | (12,800) |  | 
| Expenses, less impairment loss from expected credit losses |  |  | (35,916) |  |  | (34,599) |  |  | (40,429) |  | 
|  |  |  |  |  |  |  |  |  |  |  | 
| Profit for the year |  |  | 93,663 |  |  | 86,997 |  |  | 95,424 |  | 
| Commercial assets and loan commitments and financial guarantee contracts (end of year balances): |  |  |  |  |  |  |  |  |  |  | 
|  |  |  |  |  |  |  |  |  |  |  | 
| Interest-earning assets (3 and 5) |  |  | 5,500,673 |  |  | 6,013,482 |  |  | 6,682,445 |  | 
| Other assets and loan commitments and financial guarantee contracts (4) |  |  | 493,794 |  |  | 422,422 |  |  | 437,436 |  | 
| Total interest-earning assets, other assets and loan commitments and financial guarantee contracts |  |  | 5,994,467 |  |  | 6,435,904 |  |  | 7,119,881 |  | 
|  |  |  |  |  |  |  |  |  |  |  | 
| Treasury |  |  |  |  |  |  |  |  |  |  | 
|  |  |  |  |  |  |  |  |  |  |  | 
| Interest income |  |  | 12,753 |  |  | 9,506 |  |  | 10,454 |  | 
| Interest expense |  |  | (13,519) |  |  | 5,328 |  |  | 7,864 |  | 
|  |  |  |  |  |  |  |  |  |  |  | 
| Net interest income |  |  | (766) |  |  | 14,834 |  |  | 18,318 |  | 
| Net other income  (2) |  |  | (428) |  |  | (3,568) |  |  | 6,887 |  | 
|  |  |  |  |  |  |  |  |  |  |  | 
| Total income |  |  | (1,194) |  |  | 11,266 |  |  | 25,205 |  | 
| Impairment loss for expected credit losses on investment securities |  |  | 489 |  |  | (3) |  |  | (5,290) |  | 
| Expenses, less impairment loss for expected credit losses |  |  | (10,959) |  |  | (11,216) |  |  | (11,355) |  | 
|  |  |  |  |  |  |  |  |  |  |  | 
| Profit (loss) for the year |  |  | (11,664) |  |  | 47 |  |  | 8,560 |  | 
| Treasury assets (end of year balances): |  |  |  |  |  |  |  |  |  |  | 
| Interest-earning assets (3 and 5) |  |  | 757,911 |  |  | 1,177,961 |  |  | 1,603,921 |  | 
| Total interest-earning assets |  |  | 757,911 |  |  | 1,177,961 |  |  | 1,603,921 |  | 
|  |  | Years ended December 31, |  | |||||||
|  |  | 2017(1) |  | 2016(1) |  | 2015(1) |  | |||
| Combined business segment total |  |  |  |  |  |  |  |  |  |  | 
| Interest income |  |  | 226,079 |  |  | 245,898 |  |  | 220,312 |  | 
| Interest expense |  |  | (106,264) |  |  | (90,689) |  |  | (74,833) |  | 
|  |  |  |  |  |  |  |  |  |  |  | 
| Net interest income |  |  | 119,815 |  |  | 155,209 |  |  | 145,479 |  | 
| Net other income  (2) |  |  | 18,498 |  |  | 12,765 |  |  | 28,379 |  | 
|  |  |  |  |  |  |  |  |  |  |  | 
| Total income |  |  | 138,313 |  |  | 167,974 |  |  | 173,858 |  | 
| Impairment loss from expected credit losses on loans and impairment loss from expected credit losses on loan commitments and financial guarantee contracts |  |  | (9,928) |  |  | (35,112) |  |  | (12,800) |  | 
| Impairment loss from expected credit losses on investment securities |  |  | 489 |  |  | (3) |  |  | (5,290) |  | 
| Expenses, less impairment loss from expected credit losses |  |  | (46,875) |  |  | (45,814) |  |  | (51,784) |  | 
| Profit for the year |  |  | 81,999 |  |  | 87,045 |  |  | 103,984 |  | 
|  |  | December 31, 2017 |  | December 31, 2016 |  | ||
| Total assets and loan commitments and financial guarantee contracts (end of year balances): |  |  |  |  |  |  |  | 
| Interest-earning assets (3 and 5) |  |  | 6,258,584 |  |  | 7,191,443 |  | 
| Other assets and loan commitments and financial guarantee contracts (4) |  |  | 493,794 |  |  | 422,422 |  | 
| Total interest-earning assets, other assets and loan commitments and financial guarantee contracts |  |  | 6,752,378 |  |  | 7,613,865 |  | 
|  (1) | The numbers set out in these tables have been rounded and accordingly may not total exactly. | 
|  (2) | Net other income consists of other income including gains on sale of loans, gains (loss) per financial instrument at FVTPL and FVOCI, derivative instruments and foreign currency exchange. | 
|  (3) | Includes deposits and loans, net of unearned interest and deferred fees. | 
|  (4) | Includes customers’ liabilities under acceptances, loans commitments and financial guarantees contracts. | 
|  (5) | Includes cash and cash equivalents, interest-bearing deposits with banks, financial instruments at fair value through OCI, financial instruments at amortized cost and financial instruments at fair value through profit or loss. | 
|  |  | December 31, 2017 |  | December 31, 2016 |  | ||
| Reconciliation of total assets: |  |  |  |  |  |  |  | 
| Interest-earning assets  business segment |  |  | 6,258,584 |  |  | 7,191,443 |  | 
| Equity instruments |  |  | 8,402 |  |  | - |  | 
| Allowance for expected credit losses on loans |  |  | (81,294) |  |  | (105,988) |  | 
| Allowance for expected credit losses on securities at amortized cost |  |  | (196) |  |  | (602) |  | 
| Customers’ liabilities under acceptances |  |  | 6,369 |  |  | 19,387 |  | 
| Intangibles, net |  |  | 5,425 |  |  | 2,909 |  | 
| Accrued interest receivable |  |  | 30,872 |  |  | 44,187 |  | 
| Property and equipment, net |  |  | 7,420 |  |  | 8,549 |  | 
| Derivative financial instruments used for hedging - receivable |  |  | 13,338 |  |  | 9,352 |  | 
| Other assets |  |  | 18,827 |  |  | 11,546 |  | 
| Total assets  consolidated financial statements |  |  | 6,267,747 |  |  | 7,180,783 |  |