Sudbury (Vale): a nickel operation in Canada

Sudbury (Vale) is a sulphide mine producing nickel in Sudbury, Ontario, Canada, operated by Vale. The sources report 35.3 thousand metric tons contained nickel, finished production by ore source for CY2025; the basis is 100% of ore-source production as presented by Vale. The sources do not give a whole-operation figure in nickel content that can be compared with world output, so no share is computed.

Who owns and operates it?

Owners of Sudbury (Vale)
Owner	Interest	As of
Vale (operator) through Vale Base Metals (VBM), which owns 100% of the operation; Manara Minerals owns the other 10% of VBM	90%	27 March 2026
Manara Minerals Investment Company of Vale Base Metals, which owns 100% of the operation	10%	27 March 2026

Interests are as stated in the sources below on the date shown. Ownership changes with deals, so a stake may have changed since the date shown.

How much does it produce?

Reported output of Sudbury (Vale)
Period	Output	Basis	Where in the source
CY2025	35.3 thousand metric tons contained nickel, finished production by ore source Vale's 6-K/A annex prints 35.2 kt for the same line (fourth-quarter release).	100% of ore-source production as presented by Vale	printed p.72, table "Finished production by ore source", Sudbury row · Vale S.A.
CY2024	36.2 thousand metric tons contained nickel, finished production by ore source	as reported by Vale	printed p.72, same row · Vale S.A.

Between CY2024 and CY2025 the reported figure fell by 2.5%, in the same unit and on the same basis.

Status: operating, as of 27 March 2026.

Vale prints nickel refined through its facilities and intermediates designated for sale, on a contained-nickel basis, attributed to the ore source. It is not nickel in ore or concentrate, so no content figure is given.

How does it compare?

Other nickel operations on this site: Weda Bay Nickel, Société Le Nickel (SLN), Nickel Industries' four RKEF plants, Huayue Nickel Cobalt (nickel), Antam ferronickel, Kolaka, Taganito HPAL (THPAL), Coral Bay Nickel (CBNC), Nornickel group (Norilsk and Kola), Thompson (Vale), Voisey's Bay (Vale), Onça Puma, Integrated Nickel Operations (Glencore). In Canada: Thompson (Vale), Voisey's Bay (Vale), Integrated Nickel Operations (Glencore). See where nickel comes from for the country totals, the country page for Canada, and Vale for its other operations here.

Sources

Vale S.A.: Form 20-F for the year ended 31 December 2025 (filed 2026-03-27) (annual report (SEC 20-F), FY2025). Opened 3 November 2026; used: printed pp.66, 67, 68, 69, 72, 94 (printed 20-F page numbers).
U.S. Geological Survey: Mineral Commodity Summaries 2026: Nickel (government statistical summary, 2025 (world and country mine production)). Opened 3 November 2026; used: world and country mine production table.

Method and limits

Reported, not estimated. Output is the figure the operator or owner published, in the unit it used. This site does not estimate output where none is published.
Shares. A share divides output in nickel content by the USGS world or country total for 2025. Where the operator's year is a fiscal year or the unit is a concentrate or a carbonate equivalent, the share is approximate or not given.
Whole operation or owner's share. The basis column says which. A joint venture's output is never counted twice.
Partial list. Only operations with a published figure are listed, so the rank is among those on this site, not among every nickel mine. Shares of a country's output mix periods and bases, so treat them as indicative.
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