# Toyo Tanso Co., Ltd. (5310) — Ownership, Board & Financials · Plover Analytics

> Toyo Tanso Co., Ltd. (東洋炭素株式会社, 5310), Glass & Ceramics Products. 6 cross-shareholdings, a board of 8 and 10 largest shareholders, as filed on EDINET for the year to December 2025.

Page: https://ploveranalytics.com/company.html?code=5310

## Toyo Tanso Co., Ltd.

Toyo Tanso Co., Ltd. (東洋炭素株式会社, 5310), Glass & Ceramics Products. 6 cross-shareholdings, a board of 8 and 10 largest shareholders, as filed on EDINET for the year to December 2025. EDINET filing S100XTP9, filed 2026-03-25. Source: company filings on EDINET (Financial Services Agency of Japan).

## Financial summary

_Five-year summary as filed, latest filing per fiscal year_

| Fiscal year end | Revenue (¥bn) | Profit (¥bn) | Total assets (¥bn) | EPS (¥) | DPS (¥) | Employees |
|---|---:|---:|---:|---:|---:|---:|
| 2021-12-31 | 37.7 | 4.5 | 83.7 | 212.94 | 60.00 | 1,640 |
| 2022-12-31 | 43.8 | 5.2 | 89.4 | 247.08 | 70.00 | 1,690 |
| 2023-12-31 | 49.3 | 7.5 | 96.6 | 357.91 | 110.00 | 1,736 |
| 2024-12-31 | 53.1 | 10.0 | 113.2 | 474.95 | 145.00 | 1,785 |
| 2025-12-31 | 46.2 | 5.5 | 117.9 | 260.58 | 145.00 | 1,678 |

Source: company filings on EDINET (Financial Services Agency of Japan). · JSON: https://ploveranalytics.com/api/v1/equity/financials/company/5310

## Cross-shareholdings

_Ten largest cross-shareholdings by book value, latest annual report_

| Company held | Shares | Book value (¥bn) | % of shares outstanding |
|---|---:|---:|---:|
| HOSOKAWA MICRON CORPORATION | 52,400 | 0.3 | 0.4 |
| ＯＫＵＭＵＲＡ ＣＯＲＰＯＲＡＴＩＯＮ | 31,800 | 0.2 | 0.1 |
| Mizuho Financial Group, Inc. | 28,416 | 0.2 | 0.0 |
| The Hyakujushi Bank, Ltd. | 9,600 | 0.1 | 0.0 |
| Senshu Ikeda Holdings, Inc. | 63,270 | 0.1 | 0.0 |
| ＳＵＭＣＯ ＣＯＲＰＯＲＡＴＩＯＮ | 18,796 | 0.0 | 0.0 |

% of shares outstanding: shares held ÷ (issuer's issued shares − treasury shares) × 100, both as filed, the denominator taken from the issuer's own annual securities report nearest the holding's fiscal year end

Source: company filings on EDINET (Financial Services Agency of Japan). · JSON: https://ploveranalytics.com/api/v1/equity/company/5310

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Every figure above is either as published by its source (official) or calculated by this platform with the formula stated beside it. Missing is shown as —, never as zero. Guidance for quoting: https://ploveranalytics.com/llms.txt