9. Depreciation, amortization and impairment
As of 31 December 2023, depreciation, amortization and impairment includes, on the one hand, the normal depreciation on property, plant and equipment in the amount of CHF 0.1 million (2022: CHF 0.1 million). On the other hand, it includes an impairment of the investment Unio S.A. (see note 5) in the amount of CHF 2.8 million (2022: CHF 8.2 million).