Norsk Hydro Restores Output at World's Largest Alumina Refinery

2026-08-14 companies

Barcarena, Friday, 14 August 2026.
Norsk Hydro is restoring full capacity at Brazil’s Alunorte refinery after securing gas access, easing market strain despite an estimated $100 million Q3 financial hit.

Production Resumption and Regulatory Approval

Norsk Hydro ASA (OTCQX: NHYDY) announced on August 14, 2026, that its Alunorte refinery in Brazil is gradually restoring alumina production toward full capacity [1][4]. The facility had previously reduced output to 50% following natural gas supply disruptions from provider CELBA [3][5]. This operational recovery aims to alleviate supply constraints in a global aluminum market that has recently experienced price volatility [6]. The path to restoration involved securing regulatory approval from Brazil’s oil, natural gas and biofuels regulator, ANP, allowing Alunorte to operate as a direct importer of gas [1][2]. Concurrently, the refinery reached a temporary agreement with CELBA regarding terminal access to stabilize supply lines [4][5]. These measures enable the ramp-up process while the company pursues a long-term solution for gas logistics [2][3].

Operational and Financial Impact

During the period of reduced production, estimated output losses range between 100,000 and 120,000 tons of alumina [1][2]. Norsk Hydro projects a potential financial impact for the Bauxite & Alumina segment in the third quarter of 2026 between USD 75 million and USD 100 million [3][5]. This cost stems from reduced production volumes and the necessity of purchasing gas at prices exceeding the original contract terms [2][6]. The refinery, which possesses an annual production capacity of 6.3 million metric tons of alumina, faced these output losses against a backdrop of tight supply [3][6]. The lost production volume represents a calculable fraction of the refinery’s total annual capacity, expressed as 1.905 percent at the upper estimate [3][6].

Market Implications and Capacity

Global aluminum market prices hit a seven-week high as of August 14, 2026, influenced by supply chain tensions and conflict in Iran impacting gas costs [6][3]. Benchmark three-month aluminium prices on the London Metal Exchange rose as much as 2% to $3,382.50 a ton on Tuesday, the highest since June 22 [3]. Norsk Hydro is in the process of returning to full production capacity at the Alunorte facility, though the status remains pending full capacity restoration [6]. The company will continue efforts to secure long-term, alternative gas supplies while preserving rights under the Gas Supply Agreement [5]. Investors tracked the announcement closely, with shares declining 3.60% in the session on August 13, 2026, prior to the resumption news [2].

Sources

Alumina supply Aluminum production