XML 43 R31.htm IDEA: XBRL DOCUMENT
v3.26.1

Income tax expense (Tables) | 12 Months Ended
--- | ---
Dec. 31, 2025
Income taxes paid (refund) [abstract] |
Summary of income tax credit |
| 2025 |  | 2024
Enterprise Income Tax ("EIT") | $ | — |  |  | $ | — |
Schedule of reconciliation between tax credit credited to profit or loss and accounting loss | The income tax expense for the year can be reconciled to the profit before tax per the statement of profit or loss and other comprehensive income as follows:
| 2025 |  | 2024
Profit before tax | $ | 5,804,192 |  |  | $ | 4,472,893 |
Tax at the domestic rate of 16.5% (Note) | 957,692 |  |  | 738,027 |
Tax effect of income not taxable for tax purposes | (4,577,504) |  |  | (5,178,539) |
Tax effect of expenses not deductible for tax purposes | 208,014 |  |  | 843,431 |
Tax effect of deductible temporary differences not recognized | 197,756 |  |  | 275,759 |
Tax effect of tax losses not recognized | 4,274,704 |  |  | 4,425,036 |
Effect of different tax rates of subsidiaries operating in other jurisdictions | (1,060,662) |  |  | (1,103,714) |
Income tax expense for the year | $ | — |  |  | $ | — |

X
- References No definition available. + Details
Name: | ifrs-full_IncomeTaxesPaidRefundAbstract
Namespace Prefix: | ifrs-full_
Data Type: | xbrli:stringItemType
Balance Type: | na
Period Type: | duration

X
- Definition Schedule Of Components Of Income Tax Expense Benefit1 + References No definition available. + Details
Name: | pre_ScheduleOfComponentsOfIncomeTaxExpenseBenefit1TableTextBlock
Namespace Prefix: | pre_
Data Type: | dtr-types1:textBlockItemType
Balance Type: | na
Period Type: | duration

X
- Definition Schedule Of Effective Income Tax Rate Reconciliation1 + References No definition available. + Details
Name: | pre_ScheduleOfEffectiveIncomeTaxRateReconciliation1TableTextBlock
Namespace Prefix: | pre_
Data Type: | dtr-types1:textBlockItemType
Balance Type: | na
Period Type: | duration