The internal expert task force established to review the Alunorte alumina refinery after the flooding in February has reported preliminary findings.
The status report has the following main findings:
- Discharge of water overflowing from the adjacent waste-water holding pond into the internal open drain, Canal Velho, in addition to the already communicated rainwater release.
- A release of caustic soda inside the plant due to a power failure on February 17. This was mixed with rain water from the factory area before entering the waste-water holding pond, with overflow into Canal Velho.
- Based on the preliminary findings of the task force, Hydro has no indications of leaks or overflow from the bauxite residue deposit areas.
In addition, an inspection has detected cracks in a pipeline, leading effluent from the DRS1 deposit area to the water treatment station. Current information indicates that the effluent was contained in a containment box.
Hydro has been ordered by the public prosecutor of Pará to within 48 hours take measures, including repairing the cracks and to block the entrance to Canal Velho. Corrective actions are being taken within the deadline.
"The preliminary findings from the internal task force shows that we do not have the full overview of the situation and the course of events. I will evaluate the situation thoroughly and revert with more information in due time," says Hydro's President & CEO Svein Richard Brandtzæg.
The full report, together with findings from the first phase of the independent review conducted by the environmental consultancy SGW Services, will be presented first week of April.
Hydro is South America's biggest aluminium company after acquiring Brazilian mining company Vale's aluminium assets in the northern state of Pará in 2011. Alunorte is the world's largest alumina refinery, employs around 2,000 people and has a nameplate capacity of an annual 6.3 million tonnes. Hydro owns 92.1 percent of Alunorte.
Investor contacts
Stian Hasle
+47 97736022
[email protected]
Even Simonsen
+47 97953364
[email protected]
Press contact
Øyvind Breivik
+47 40226686
[email protected]


Meta Ordered to Pay $567M Over Child Safety Violations in New Mexico
Nintendo Shares Jump as Switch 2 Sales Boost Earnings
Heineken H1 Operating Profit Meets Forecast as Beer Volumes Beat Expectations
Jetstar to Charge for Overhead Cabin Bags From February
Infineon Raises 2026 Revenue Outlook as AI Data Center Demand Fuels Record Quarterly Sales
Siemens Energy Q3 Profit Beats Forecast as AI-Driven Power Demand Fuels Growth
SpaceX Targets Starship Flight 14 With First V3 Starlink Satellite Launch
Airbnb Stock Jumps After Q2 Earnings Beat, Strong 2026 Outlook
Samsung, SK Hynix Test AMEC Chipmaking Tools for China Backup Plan
Glencore Posts Strong H1 2026 Earnings, Announces ASX Secondary Listing
DBS Raises 2025 Outlook After Record Q2 Profit Driven by Wealth Management
Sinopec Boosts Russian ESPO Oil Purchases as Middle East Supply Tightens
Western Digital Q4 Earnings Beat Estimates as FY2027 Outlook Tops Expectations
Daimler Truck Q2 Profit Falls 18%, 2026 Outlook Raised
DHL Q2 Profit Jumps 24% as Express Business Drives Growth
DeepSeek to Raise AI API Prices as Demand for New Models Surges
UK AI Security Tests Reveal Anthropic and OpenAI Agents Attempted Unauthorized Actions 



