Hydro: the mines it operates or owns, and what they report

Hydro is a listed company headquartered in Norway (Oslo Børs: NHY). This site lists 9 operations tied to it, for bauxite and aluminum: it operates 5 and holds an interest in 4 more. On the operations here where a whole-operation figure can be stated (in metal content, or as the commodity page says for ore and smelted metal), its interests add up to about 1,767,900 tonnes of primary aluminum (2.4% of world output) and 10,516,000 tonnes of bauxite (2.4% of world output). That leaves out operations without such a figure, so it is not the company's total.

Its operations on this site

Operations of Hydro
Operation	Commodity and country	Role	Interest	Whole-operation output	Share of world output
Paragominas open-pit mine	bauxite Brazil	Operator	100% as of 31 December 2025	10,516 kmt (thousand tonnes), wet basis CY2025	2.4%
Qatalum smelter aluminum smelter	aluminum Qatar	Owner	50% as of 31 December 2025	about 648,000 t of aluminum CY2025, derived	0.9%
Alouette smelter aluminum smelter	aluminum Canada	Owner	20% as of 31 December 2025	616 '000 tonnes (kt) of primary aluminum, 100% basis ('Total' column) CY2025	0.8%
Tomago smelter aluminum smelter	aluminum Australia	Owner	12.4% as of 31 December 2025	574 '000 tonnes (kt) of primary aluminum, 100% basis ('Total' column) CY2025	0.8%
Albras smelter aluminum smelter	aluminum Brazil	Owner	51% as of 31 December 2025	448 '000 tonnes (kt) of primary aluminum ('Primary aluminium production (kmt)') CY2025	0.6%
Sunndal smelter aluminum smelter	aluminum Norway	Operator	100% as of 31 December 2025	421 '000 tonnes (kt) of primary aluminum ('Primary aluminium production (kmt)') CY2025	0.6%
Karmøy smelter aluminum smelter	aluminum Norway	Operator	100% as of 31 December 2025	234 '000 tonnes (kt) of primary aluminum ('Primary aluminium production (kmt)') CY2025	0.3%
Årdal smelter aluminum smelter	aluminum Norway	Operator	100% as of 31 December 2025	205 '000 tonnes (kt) of primary aluminum ('Primary aluminium production (kmt)') CY2025	0.3%
Husnes smelter aluminum smelter	aluminum Norway	Operator	100% as of 31 December 2025	161 '000 tonnes (kt) of primary aluminum ('Primary aluminium production (kmt)') CY2025	0.2%

How much is that on its interests?

aluminum: 1,767,900 tonnes of primary aluminum across 8 operations, about 2.4% of world output. Periods differ by operation (CY2025). At least one whole-operation figure is derived from an owner's share; see that operation's page.
bauxite: 10,516,000 tonnes of bauxite across 1 operation, about 2.4% of world output. Periods differ by operation (CY2025).

Computed as each operation's whole-operation output in metal content, or as ore or smelted metal where the commodity is measured that way, multiplied by the interest shown. Operations whose output is stated in another form, or only as the owner's share, are left out of this sum, so it understates what the company controls.

Sources

Norsk Hydro ASA: Integrated Annual Report 2025 (annual report, CY2025). Opened 4 November 2026.
Norsk Hydro ASA: Integrated Annual Report 2025 (annual report (Oslo Bors filing, copy distributed through the GlobeNewswire release service), FY2025 (calendar), with 2024 and 2023 comparatives). Opened 4 November 2026.

The corporate facts above (headquarters, type, listing) come from the sources listed; no stock prices, valuations or executives are shown. Ownership and output are on the date and period stated on each operation's page. The list covers operations with a published figure for the commodities on this site, so it is not the company's full portfolio.

Made with AI assistance and checked against the sources by a second, independent pass; no professional review took place. How the site is made. To report an error, contact us.