For the financial instruments measured subsequent to their initial recognition at fair value, the Group classifies fair value measurements using the following fair value hierarchy that reflects the significance of the inputs used in making the measurements: The Group’s financial assets and liabilities that are measured subsequent to their initial recognition at fair value comprise derivative instruments presented in Note 23 and selected trade receivables arising from sales of mobile handsets in instalments described in Note 14.1. The Group classifies these financial assets and liabilities to Level 2 fair value measurements.