Page 311 - TSMC 2020 Annual Report

Furthermore, in presenting the above sensitivity analysis, the present value of the defined benefit obligation has been calculated using the projected unit credit method at the end of the reporting period, which is the same as that applied in calculating the defined benefit obligation liability.
The Company expects to make contributions of NT$229,934 thousand to the defined benefit plans in the next year starting from December 31, 2020. The weighted average duration of the defined benefit obligation is 9 years.
18. GUARANTEEDEPOSITS
December 31, 2019
$ 1,499,400 191,352
$ 1,690,752
$ 1,520,306 170,446
$ 312,230
Some of guarantee deposits were refunded to customers by offsetting related accounts receivable.
- $ 312,230
Current portion (classified under accrued expenses and other current
liabilities) $ 53,157 Noncurrent portion 259,073
Capacity guarantee $
Others 312,230
December 31, 2020
$ 1,690,752
19. EQUITY
a. Capital stock
Authorized shares (in thousands) Authorized capital
Issued and paid shares (in thousands) Issued capital
December 31, 2020
28,050,000 $ 280,500,000 25,930,380 $ 259,303,805
December 31, 2019
28,050,000 $ 280,500,000 25,930,380 $ 259,303,805
A holder of issued common shares with par value of NT$10 per share is entitled to vote and to receive dividends.
The authorized shares include 500,000 thousand shares allocated for the exercise of employee stock options.
As of December 31, 2020, 1,064,364 thousand ADSs of the Company were traded on the NYSE. The number of common shares represented by the ADSs was 5,321,819 thousand shares (one ADS represents five common shares).
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