- 35 - The maturity analysis of lease liabilities is presented in Note 23. The Group leases several assets including land, buildings and vehicles. The lease term is 3 - 20 years. Expenses relating to right-of-use assets recognised at profit or loss as at December 31 consist of the followings: Unit : Million Baht Consolidated financial statements Separate financial statements 2021 2020 2021 2020 Amounts recognised in profit and loss Depreciation expense on right-of-use assets 116 117 223 112 Interest expense relating to lease liabilities 6 9 14 9 Expense relating to short-term leases 14 20 15 141 Expense relating to leases of low value assets 50 52 49 51 Expense relating to variable lease payments not included in the measurement of the lease liability 35 34 35 34 Overall the variable payments constitute up to 33% of the Group’s entire lease payments. The Group expects this ratio to remain constant in future years. The variable payments depend on quantity used. For the year ended December 31, 2021, the total cash outflow for leases amount to Baht 110 million and Baht 212 million in the consolidated and separate statements of cash flows, respectively. (2020 : amount of Baht 129 million and Baht 125 million, respectively) 16. INTANGIBLE ASSETS Intangible assets as at December 31, consist of: Unit : Million Baht Consolidated financial statements As at December 31, 2021 Balances Additions Write off Transfers Reclassification Balances as at In (out) of assets as at January 1, December 31, 2021 2021 Cost Dredging expenses 454 - - - - 454 Computer software 1,423 1 - 108 - 1,532 Total 1,877 1 - 108 - 1,986 Accumulated amortisation Dredging expenses (279) (24) - - - (303) Computer software (1,050) (118) - - - (1,168) Total (1,329) (142) - - - (1,471) Computer software under installation 226 128 - (108) - 246 Total intangible assets 774 761 337 NOTES TO THE FINANCIAL STATEMENTS IRPC PUBLIC COMPANY LIMITED
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