| (i) | Share-Based Payment |
Share-based payment awards granted to employees and non-employees are recognized as stock option expense, with a corresponding increase in equity, over the period that the optionees become unconditionally entitled to the awards. The amount recognized as an expense is adjusted to reflect the number of awards for which the related service and non-market performance conditions are expected to be met, such that the amount ultimately recognized as an expense is based on the number of awards that meet the related service and non-market performance conditions at the vesting date.
The Group estimates the fair value of option awards using the Black-Scholes option pricing model. Determining the fair value of awards under this model represents management’s best estimates, but these estimates involve inherent uncertainties and the application of management judgment.