NOTES TO THE UNAUDITED CONDENSED CONSOLIDATED INTERIM FINANCIAL STATEMENTS (CONTINUED) 6.Cost of sales | | | | | | | | | | | Three months ended | | Six months ended | | | June 30, | | June 30, | | June 30, | | June 30, | | | 2025 | | 2024 | | 2025 | | 2024 | | | $'m | | $'m | | $'m | | $'m | | | | | | | | | | Power generation | | 81.8 | | 90.6 | | 167.4 | | 179.4 | Depreciation | | 75.6 | | 73.8 | | 151.5 | | 147.6 | Tower repairs and maintenance | | 14.1 | | 8.9 | | 27.1 | | 24.5 | Amortization | | 10.3 | | 9.6 | | 20.3 | | 19.6 | Staff costs | | 7.7 | | 5.9 | | 15.2 | | 12.8 | Regulatory fees | | 7.0 | | 7.0 | | 13.8 | | 14.6 | Security services | | 5.0 | | 0.1 | | 10.7 | | 7.9 | Travel costs | | 2.0 | | 1.7 | | 2.8 | | 3.3 | Net impairment of property, plant and equipment, intangible assets excluding goodwill and related prepaid land rent | | 1.7 | | 2.9 | | 3.6 | | 6.0 | Insurance | | 0.9 | | 1.1 | | 1.7 | | 2.3 | Short-term rental | | 0.9 | | 1.1 | | 1.4 | | 3.7 | Vehicle maintenance and repairs | | 0.5 | | 0.5 | | 1.0 | | 0.9 | Professional fees | | 0.3 | | 0.5 | | 0.7 | | 0.9 | Impairment of assets held for sale | | — | | 2.9 | | — | | 2.9 | Other(a) | | 3.2 | | 0.1 | | 7.5 | | 34.6 | | | 211.0 | | 206.7 | | 424.7 | | 461.0 |
| (a) | Included in “Other” for the three months ended June 30, 2025, is a net foreign exchange gain on cost of sales of $0.3 million (three months ended June 30, 2024: $1.9 million). For the six months ended June 30, 2025, net foreign exchange gain on cost of sales of $0.3 million (six months ended June 30, 2024: $30.2 million in net foreign exchange loss on cost of sales). |
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