Alumina prices averaged USD 370 per metric ton in August, up 1.1% from July. On 29 August, the commodity traded at USD 363 per metric ton, down 3.8% from 31 July.
Prices edged up in August as the supply outlook soured. Emirates Global Aluminium said that its Guinean government expropriated its alumina refinery and now fully controls it, which could hamper output ahead. Moreover, workers at Rusal’s refinery in Guinea blocked a railway in mid-August to halt shipments.
This chart displays Alumina (US$/mt) from 2023 to 2025.
Alumina COMEX (prices in US$/mt, aop)
| Q1 2023 | Q2 2023 | Q3 2023 | Q4 2023 | Q1 2024 | Q2 2024 | Q3 2024 | Q4 2024 | Q1 2025 | Q2 2025 | Q3 2025 | Q4 2025 | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Alumina COMEX | - | - | 336 | 334 | 366 | 427 | 504 | 695 | 534 | 355 | - | - |