v3.25.1
Income tax (Schedule of Reconciliation of Total Tax Expense Computed by Applying Respective Statutory Income Tax Rate to Pre-tax Income) (Details)
12 Months Ended
Dec. 31, 2024
Dec. 31, 2023
Dec. 31, 2022
Income tax      
Singapore statutory income tax rate [1] 17.00% 17.00% 17.00%
Effect of tax holiday and preferential tax benefit (as a percent) 16.10% (7.00%) (5.30%)
Effect of different tax rates available to different jurisdictions (as a percent) 4.00% (19.50%) (9.50%)
Permanent differences (as a percent) [2] (26.60%) 14.90% 6.80%
Change in valuation allowance (as a percent) (26.80%) 10.10% 0.80%
Effect of Super Deduction available to the Group (as a percent) 10.40% (9.00%) (4.40%)
Effective income tax rate (as a percent) (5.90%) 6.50% 5.40%
[1] *:  As a majority of the Group’s businesses is subject to Singapore corporate tax rate, the reconciliation of tax expenses begins at Singapore statutory income tax rate.
[2] (i) Permanent differences mainly arise from expenses not deductible for tax purposes including primarily goodwill impairment charges, share-based compensation costs and expenses incurred by subsidiaries and VIEs.