SEC Carbon Co., Ltd.
SEC Carbon Co., Ltd. is a Private limited company (Ltd.) registered in Japan under 9140001047877, and its current status with National Tax Agency — Corporate Number Publication Site is active. The company was incorporated on 5 October 2015 and lists its registered address as Amagasaki City, Japan. 5 shareholders are on record for SEC Carbon Co., Ltd., and since every one of them is a company rather than an individual, this particular filing does not on its own establish an ultimate beneficial owner (UBO) — identifying one would mean tracing the ownership of each shareholding company in turn. This profile is sourced directly from National Tax Agency — Corporate Number Publication Site and was last updated on 2 October 2026.
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Shareholders
5
Five shareholders are currently on record for SEC Carbon Co., Ltd., reflecting the kabunushi meibo (shareholder register) maintained under Articles 121-122 of the Companies Act rather than a public filing.
The largest of these is DFA Japanese Small Company Series, holding 60.9% — a majority holding — followed by DFA International Core Equity Portfolio at 15.6%; the remaining 3 shareholders shown hold smaller stakes.
The register reports 7 shareholders in total, though only the top 5 by holding are shown in this view.
Because every shareholder shown is a company rather than an individual, the ownership chain continues above this level, and no beneficial owner can be established from this filing alone.
| Shareholder | Type | Holding | Source Document |
|---|---|---|---|
| DFA Japanese Small Company Series | 60.9% | National Tax Agency — Corporate Number Publication Site | |
| DFA International Core Equity Portfolio | 15.6% | National Tax Agency — Corporate Number Publication Site | |
| DFA International Vector Equity Port | 8.4% | National Tax Agency — Corporate Number Publication Site | |
| Avantis International Small Cap Value ETF | 7.8% | National Tax Agency — Corporate Number Publication Site | |
| DFA Investment Dimensions-DFA International Social Core Equity Port | 2.8% | National Tax Agency — Corporate Number Publication Site |
Officers
3
Three officers are currently on record for SEC Carbon Co., Ltd., filed with National Tax Agency — Corporate Number Publication Site. Koh Nakajima serves as President & Director; Hiroshi Tabata serves as Executive Officer & Director; Seiichi Iwai serves as Executive Officer, Gm Of Corporate Planning & Director.
Management authority at SEC Carbon Co., Ltd. sits with these individuals, not with shareholders, who are covered separately and hold ownership rather than control.
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.
Group Structure
SEC Carbon Co., Ltd. has no recorded parent company — it sits at the top of its own group structure, with 3 subsidiaries recorded beneath it across 1 jurisdiction. 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.
Those 3 subsidiaries span Japan jurisdiction, 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.
SEC Carbon Co., Ltd.
Japan
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Frequently Asked Questions
Who owns SEC Carbon Co., Ltd.?
Five shareholders are currently on record for SEC Carbon Co., Ltd., reflecting the kabunushi meibo (shareholder register) maintained under Articles 121-122 of the Companies Act rather than a public filing. The largest of these is DFA Japanese Small Company Series, holding 60.9% — a majority holding — followed by DFA International Core Equity Portfolio at 15.6%; the remaining 3 shareholders shown hold smaller stakes. Because every shareholder shown is a company rather than an individual, the ownership chain continues above this level, and no beneficial owner can be established from this filing alone.
Who is SEC Carbon Co., Ltd.'s UBO (Ultimate Beneficial Owner)?
Every shareholder recorded for SEC Carbon Co., Ltd. is itself a company rather than a natural person, so no Ultimate Beneficial Owner (UBO) is identified at this level; establishing one would require tracing the ownership of each shareholding company in turn.
How many shareholders does SEC Carbon Co., Ltd. have on record?
5 shareholders are shown on record for SEC Carbon Co., Ltd.. The register reports 7 in total; only the top 5 by holding are shown here.
What is SEC Carbon Co., Ltd.'s company registration number?
SEC Carbon Co., Ltd.'s registration number is 9140001047877, filed with National Tax Agency — Corporate Number Publication Site in Japan. Its current status on the register is active.
Is SEC Carbon Co., Ltd. still an active company?
SEC Carbon Co., Ltd.'s status on National Tax Agency — Corporate Number Publication Site is listed as active.
When was SEC Carbon Co., Ltd. incorporated?
SEC Carbon Co., Ltd. was incorporated on 5 October 2015, according to National Tax Agency — Corporate Number Publication Site.
What is SEC Carbon Co., Ltd.'s registered address?
The registered address on file for SEC Carbon Co., Ltd. is Amagasaki City, Japan.
What legal structure is SEC Carbon Co., Ltd. registered as?
SEC Carbon Co., Ltd. is registered as a Private limited company (Ltd.) in Japan.
Who are the officers/directors of SEC Carbon Co., Ltd.?
Three officers are currently on record for SEC Carbon Co., Ltd., filed with National Tax Agency — Corporate Number Publication Site. Koh Nakajima serves as President & Director; Hiroshi Tabata serves as Executive Officer & Director; Seiichi Iwai serves as Executive Officer, Gm Of Corporate Planning & Director. Management authority at SEC Carbon Co., Ltd. sits with these individuals, not with shareholders, who are covered separately and hold ownership rather than control.
Does SEC Carbon Co., Ltd. have a parent company or subsidiaries?
SEC Carbon Co., Ltd. has no recorded parent company — it sits at the top of its own group structure, with 3 subsidiaries recorded beneath it across 1 jurisdiction. Those 3 subsidiaries span Japan jurisdiction, 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.
Can Zavia monitor changes to SEC Carbon 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 SEC Carbon 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 SEC Carbon 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 SEC Carbon 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 2 October 2026.