| Fair value measurement |
30. Fair value measurement Fair value of assets and liabilities that are measured at fair value The following table provides the fair value measurement hierarchy of the Company’s assets and liabilities that are carried at fair value in the statement of financial position: | | | | | | | | | | | December 31, 2025 | | | | | Quoted prices in active markets | | Significant observable inputs | | Significant unobservable inputs | | | Total | | (Level 1) | | (Level 2) | | (Level 3) | | | US$'000 | | US$'000 | | US$'000 | | US$'000 | Property, plant and equipment (Note 8): | | | | | | | | | Property, plant and equipment | | 44,169 | | — | | 44,169 | | — | Other financial assets (Note 9): | | | | | | | | | Equity securities | | 1,647 | | 1,647 | | — | | — | Financial investments | | 20,174 | | — | | 9,074 | | 11,100 | Non-hedging derivative financial assets | | 16,372 | | — | | — | | 16,372 | Other financial instruments (Note 21): | | | | | | | | | Hedging derivative financial liabilities | | (8,953) | | — | | — | | (8,953) | Non-hedging derivative financial liabilities | | (39,239) | | — | | — | | (39,239) | Other liabilities (Note 23): | | | | | | | | | Contingent consideration in a business combination | | (3,136) | | — | | — | | (3,136) |
| | | | | | | | | | | December 31, 2024 | | | | | Quoted prices in active markets | | Significant observable inputs | | Significant unobservable inputs | | | Total | | (Level 1) | | (Level 2) | | (Level 3) | | | US$'000 | | US$'000 | | US$'000 | | US$'000 | Property, plant and equipment (Note 8): | | | | | | | | | Property, plant and equipment | | 21,058 | | — | | 21,058 | | — | Other financial assets (Note 9): | | | | | | | | | Equity securities | | 1,815 | | 1,815 | | — | | — | Financial investments | | 5,500 | | — | | — | | 5,500 | Other financial instruments (Note 21): | | | | | | | | | Derivative financial assets - PPA | | 23,649 | | — | | 23,649 | | — | Derivative financial liabilities - PPA | | (1,045) | | — | | (1,045) | | — | Other liabilities (Note 23): | | | | | | | | | Contingent consideration in a business combination | | (3,338) | | — | | — | | (3,338) |
During the period, the Company recorded transfers from Level 2 to Level 3 for some of its derivative instruments. These transfers resulted from a reassessment of the valuation inputs, where certain inputs previously considered observable were determined to be unobservable, requiring classification within Level 3. A reconciliation of the beginning and ending balances of all liabilities at fair value on recurring basis using significant unobservable inputs (Level 3) for the year ended December 31, 2025, presented as follows: | | | | | | | | | Derivatives | | Contingent consideration | | Total | Fair value at December 31, 2022 | | — | | (5,838) | | (5,838) | Changes in fair value through profit or loss | | 26,684 | | (717) | | 25,967 | Payments | | — | | 4,823 | | 4,823 | Fair value at December 31, 2023 | | 26,684 | | (1,732) | | 24,952 | Changes in fair value through profit or loss | | (3,035) | | (5,467) | | (8,502) | Payments | | — | | 3,861 | | 3,861 | Fair value at December 31, 2024 | | 23,649 | | (3,338) | | 20,311 | Changes in fair value through profit or loss | | (46,516) | | (2,331) | | (48,847) | Payments | | — | | 2,533 | | 2,533 | Fair value at December 31, 2025 | | (22,867) | | (3,136) | | (26,003) |
|