| q. | Share-based payments: |
Equity-settled share-based payments to employees and others providing similar services are measured at the fair value of the equity instrument at the grant date. The Fair value is measured using the Black and Scholes (“B&S”) model except for capped-Stock Appreciation Rights (“SAR”) for which the Group is using the binomial model. The expected life used in the B&S model has been adjusted, based on management’s best estimate, for the effects of non-transferability, exercise restrictions and behavioural considerations. The fair value determined at the grant date of the equity-settled share-based payments is expensed on a straight-line basis for each award over the vesting period, based on the Group’s estimate of shares that will eventually vest.