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v3.26.1

Basis of preparation and changes to the Company's accounting policies (Tables) | 6 Months Ended
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Jun. 30, 2026
Summary of material accounting policies |
Schedule of exchange rates used for translation of financial statements | ​
​ | ​ | ​ | ​ | ​ | ​ | ​
​ | ​ ​ ​ | For the
​ | ​ | Six Months Ended June 30, | ​ | Year Ended December 31,
​ | ​ | 2026 | ​ ​ ​ | 2025 | ​ | 2025
CHF/USD |  | ​ |  | ​ |  | ​
Closing rate, USD 1 |  | 0.817 |  | 0.807 |  | 0.800
Weighted-average exchange rate, USD 1 |  | 0.795 |  | 0.873 |  | 0.840

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