Sumitomo Metal Mining: the mines it operates or owns, and what they report

Sumitomo Metal Mining is a listed company headquartered in Japan (Tokyo Stock Exchange Prime Market). This site lists 2 operations tied to it, for nickel: it operates 0 and holds an interest in 2 more. On the operations here where a whole-operation figure in metal content can be stated, its interests add up to about 36,400 tonnes of nickel (0.9% 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 Sumitomo Metal Mining
Operation	Commodity and country	Role	Interest	Whole-operation output	Share of world output
Taganito HPAL (THPAL) high-pressure acid leach plant	nickel Philippines	Owner	75% as of 2025	27.5 kt nickel content in mixed sulfide (MS), THPAL FY2025 (Apr 2025 to Mar 2026)	0.7%
Coral Bay Nickel (CBNC) high-pressure acid leach plant	nickel Philippines	Owner	100% as of 2025	15.8 kt nickel content in mixed sulfide (MS), CBNC FY2025 (Apr 2025 to Mar 2026)	0.4%

How much is that on its interests?

nickel: 36,400 tonnes of content across 2 operations, about 0.9% of world output. Periods differ by operation (FY2025 (Apr 2025 to Mar 2026)).

Computed as each operation's whole-operation output in metal content 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

Sumitomo Metal Mining Co., Ltd.: Integrated Report 2025 (integrated report, FY2024 (to March 2025) with later events to 2025). Opened 3 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.

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