Cash and cash equivalents include cash on hand, deposits held at call with banks and other short-term highly liquid investments with original maturities of three months or less from their acquisition date, with significant low risk of change in value.
| i. | Cash and banks in local currency: at nominal value. |
| ii. | Cash and banks in foreign currency: at the exchange rates in effect at the end of the year. |
| iii. | Money market funds, which have been valued at the prevailing market price at the end of the year. Those that do not qualify as cash equivalents are disclosed in the Financial assets at fair value through profit or loss account. |