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v3.23.1

Loss before taxation - Other items (Details) - USD ($) | 12 Months Ended
--- | ---
Dec. 31, 2022 | Dec. 31, 2021 | Dec. 31, 2020
Other items |  |  |
Cost of inventories (note 16) | $ 57,442,036 | $ 52,701,330 | $ 10,412,753
Depreciation of (note 11) |  |  |
- property, plant and equipment# | 3,899,721 | 2,745,549 | 708,637
- right-of-use assets# | 2,087,167 | 1,542,566 | 583,835
Amortization of intangible assets# (note 12) | 1,556,091 | 3,058,527 | 1,133,564
Restructuring costs in relation to diagnostic business | 30,378,741 | 0 | 0
Write-off on property, plant and equipment | 268,226 | 476,431 |
Auditor's remuneration | 1,439,617 | 1,221,439 | 566,553
Miscellaneous laboratory charges | 268 | 13,953 | 12,892
impairment of intangible assets [Member] |  |  |
Depreciation of (note 11) |  |  |
Restructuring costs in relation to diagnostic business | 19,109,580 | 0 | 0
impairment of goodwill [Member] |  |  |
Depreciation of (note 11) |  |  |
Restructuring costs in relation to diagnostic business | 3,272,253 | 0 | 0
impairment losses on property, plant and equipment [Member] |  |  |
Depreciation of (note 11) |  |  |
Restructuring costs in relation to diagnostic business | 4,447,610 | 0 | 0
write-off of prepayment [Member] |  |  |
Depreciation of (note 11) |  |  |
Restructuring costs in relation to diagnostic business | 3,549,298 | 0 | 0
Direct costs |  |  |
Depreciation of (note 11) |  |  |
Total depreciation and amortization charges | 1,892,036 | 1,182,134 | 462,809
Research and development expenses |  |  |
Depreciation of (note 11) |  |  |
Total depreciation and amortization charges | 340,690 | 145,876 | 63,162
Administrative and other operating expenses |  |  |
Depreciation of (note 11) |  |  |
Total depreciation and amortization charges | 5,310,253 | 6,018,632 | 1,900,065
Total Depreciation And Amortization Charges [Member] |  |  |
Depreciation of (note 11) |  |  |
Total depreciation and amortization charges | $ 7,542,979 | $ 7,346,642 | $ 2,426,036

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