Sumitomo Metal Mining Co., Ltd.
Sumitomo Metal Mining Co., Ltd. is a registered legal entity registered in Japan, and its current status with National Tax Agency — Corporate Number Publication Site is active. Its registered address on file is Tokyo, Japan. No shareholders are recorded for Sumitomo Metal Mining Co., Ltd.; ownership in this jurisdiction is held as the kabunushi meibo (shareholder register) under Articles 121-122 of the Companies Act, a record kept privately rather than filed publicly. No beneficial owner (UBO) data is recorded for Sumitomo Metal Mining Co., Ltd.; access to beneficial-ownership data in this jurisdiction is governed by its own register rules. This profile is sourced directly from National Tax Agency — Corporate Number Publication Site and was last updated on 1 October 2026.
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Officers
5
Directors and officers of Sumitomo Metal Mining Co., Ltd.
The Managing Executive Officer, Gm Of Mineral Resources Business Unit & Director of Sumitomo Metal Mining Co., Ltd. currently on record is Hideyuki Okamoto; five officers are currently on record for Sumitomo Metal Mining Co., Ltd., filed with National Tax Agency — Corporate Number Publication Site. The source filing doesn't specify representation authority — whether officers can act individually or must sign jointly to bind the company — so that detail isn't available here.
Data availability
The register reports 20 officers in total, including past appointments, though only the 5 most relevant records are shown here.
Data-provider feed — rows as supplied to Zavia for National Tax Agency — Corporate Number Publication Site, including entries the profile above does not cover. These rows are not a verbatim copy of the register: they have been found to duplicate the same person under different spellings and to keep a status of Active after an appointment ended. Where they disagree with the profile above, the profile is the checked version.
Group Structure
Group structure of Sumitomo Metal Mining Co., Ltd.
Sumitomo Metal Mining Co., Ltd. has no recorded parent company — it sits at the top of its own group structure, with 34 subsidiaries recorded beneath it across 11 jurisdictions. Each of these downward relationships is derived rather than filed: resolved by matching entities across the registry network, not stated directly in a single document.
- SUMIKO LOGISTICS CO.,LTD. (Japan)
- Sumitomo Metal Mining Management (Shanghai) Co., Ltd. (China)
- SHISAKA SMELTING CO.,LTD. (Japan)
- GRANOPT CO.,LTD. (Japan)
- CORAL BAY NICKEL CORPORATION (Philippines)
- Sumitomo Metal Mining Arizona, Inc. (United States)
- IGETA HEIM CO., LTD. (Japan)
- SMM KOREA CO.,LTD. (South Korea)
- Sumitomo Metal Mining Canada Ltd (Canada)
- OHKUCHI ELECTRONICS CO.,LTD. (Japan)
Data availability
Those 34 subsidiaries span Japan, China, Philippines, United States, South Korea, Canada, and 5 more jurisdictions, though this list should not be read as complete — subsidiaries only become visible here where shareholder data has actually been filed with a register, so holdings in jurisdictions without that filing simply won't appear. Five of the 34 go a level deeper still, with their own further subsidiaries recorded beneath them — additional ownership layers this view doesn't expand.
Data-provider feed — rows as supplied to Zavia for National Tax Agency — Corporate Number Publication Site, including entries the profile above does not cover. These rows are not a verbatim copy of the register: they have been found to duplicate the same person under different spellings and to keep a status of Active after an appointment ended. Where they disagree with the profile above, the profile is the checked version.
Sumitomo Metal Mining Co., Ltd.
Japan
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Frequently Asked Questions
Who is Sumitomo Metal Mining Co., Ltd.'s UBO (Ultimate Beneficial Owner)?
No Ultimate Beneficial Owner (UBO) data is recorded for Sumitomo Metal Mining Co., Ltd.; access to beneficial-ownership data in this jurisdiction is governed by its own register rules.
Is Sumitomo Metal Mining Co., Ltd. still an active company?
Sumitomo Metal Mining Co., Ltd.'s status on National Tax Agency — Corporate Number Publication Site is listed as active.
What is Sumitomo Metal Mining Co., Ltd.'s registered address?
The registered address on file for Sumitomo Metal Mining Co., Ltd. is Tokyo, Japan.
Who are the officers/directors of Sumitomo Metal Mining Co., Ltd.?
The Managing Executive Officer, Gm Of Mineral Resources Business Unit & Director of Sumitomo Metal Mining Co., Ltd. currently on record is Hideyuki Okamoto; five officers are currently on record for Sumitomo Metal Mining Co., Ltd., filed with National Tax Agency — Corporate Number Publication Site.
Does Sumitomo Metal Mining Co., Ltd. have a parent company or subsidiaries?
Sumitomo Metal Mining Co., Ltd. has no recorded parent company — it sits at the top of its own group structure, with 34 subsidiaries recorded beneath it across 11 jurisdictions. Those 34 subsidiaries span Japan, China, Philippines, United States, South Korea, Canada, and 5 more jurisdictions, though this list should not be read as complete — subsidiaries only become visible here where shareholder data has actually been filed with a register, so holdings in jurisdictions without that filing simply won't appear. Five of the 34 go a level deeper still, with their own further subsidiaries recorded beneath them — additional ownership layers this view doesn't expand.
Can Zavia monitor changes to Sumitomo Metal Mining Co., Ltd.'s ownership over time?
This profile reflects a point-in-time snapshot from National Tax Agency — Corporate Number Publication Site. Zavia's monitoring API can track changes to Sumitomo Metal Mining Co., Ltd.'s registered shareholders, officers, and group structure going forward, flagging updates as they're filed rather than requiring a manual recheck.
Can I access Sumitomo Metal Mining Co., Ltd.'s data through an API?
Yes. Zavia's API connects directly to official government ownership registries across 195 countries and territories, including Japan, so records like Sumitomo Metal Mining Co., Ltd.'s registration, shareholder, UBO, and group-structure data can be queried programmatically instead of viewed one page at a time.
Where does this company information come from, and how current is it?
This record is sourced directly from National Tax Agency — Corporate Number Publication Site and was last synced on 1 October 2026.