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v3.25.3

Cost of sales (Details) - USD ($) $ in Millions | 3 Months Ended | 9 Months Ended
--- | --- | ---
Sep. 30, 2025 | Sep. 30, 2024 | Sep. 30, 2025 | Sep. 30, 2024
Expense by nature |  |  |  |
Net impairment of property, plant and equipment, intangible assets excluding goodwill and related prepaid land rent | $ 1.8 | $ 1.2 | $ 5.4 | $ 10.1
Impairment of assets held for sale |  | 2.9 |  | 2.9
Cost of sales |  |  |  |
Expense by nature |  |  |  |
Power generation | 91.0 | 84.3 | 258.4 | 263.8
Depreciation | 75.4 | 75.4 | 226.9 | 223.1
Amortization | 26.5 | 9.2 | 46.8 | 28.8
Tower repairs and maintenance | 16.2 | 13.0 | 43.3 | 37.5
Staff costs | 8.1 | 5.8 | 23.3 | 18.6
Regulatory fees | 6.2 | (2.8) | 20.0 | 11.7
Security services | 6.0 | 5.2 | 16.7 | 13.1
Travel costs | 2.1 | 0.7 | 4.9 | 4.0
Net impairment of property, plant and equipment, intangible assets excluding goodwill and related prepaid land rent | 1.8 | 1.2 | 5.4 | 10.1
Insurance | 0.8 | 1.1 | 2.5 | 3.5
Short-term rental | 0.5 | 2.4 | 1.9 | 6.1
Vehicle maintenance and repairs | 0.5 | 0.5 | 1.5 | 1.4
Professional fees | 0.5 | 0.5 | 1.1 | 1.3
Impairment of assets held for sale |  | 2.9 |  | 2.9
Other | 3.4 | 2.3 | 11.0 | 36.8
Total | 239.0 | $ 201.7 | 663.7 | 662.7
Accelerated amortization expense on customer related intangible assets due to customer insolvency proceedings | $ 13.8 |  | $ 13.8 |
Foreign exchange gains (losses) |  |  |  | $ (30.4)

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