Japanese company profile · 1514

Sumiseki Holdings, Inc.

In its FY2025 public filing, Sumiseki Holdings, Inc. reports Coal business, Diamond business, Quarrying. The page shows business-level revenue and profit where the source disclosures support comparison.

Original Japanese company name: 住石ホールディングス株式会社

English company name recorded in Japan's EDINET filer data. English company name source

Reported company-wide figures

Company revenue
¥10.66B ↗
FY2025 · fiscal year ended March 2026
Company profit
¥329M ↗
FY2025 · fiscal year ended March 2026
Profit margin
3.1% ↗
FY2025 · fiscal year ended March 2026

What does this company do?

What does this company do?

Sumiseki Holdings, Inc.'s largest reported business by revenue in FY2025 was Coal business.

FY2025 · fiscal year ended March 2026 View original filing ↗ The source document may be in Japanese.

Business structure

How does it make money?

BusinessSalesRevenue shareOperating profit
Coal business¥9.95B ↗93.4%—
Quarrying¥436M ↗4.1%—
Diamond business¥267M ↗2.5%—

All values are in Japanese yen (JPY). No currency conversion is applied. FY2025 · fiscal year ended March 2026. Revenue and profit are shown only where the filing and data support a comparison.

Original Japanese label
Coal business
石炭事業
Diamond business
ダイヤ事業
Quarrying
採石事業
Business label unavailable in English
新素材事業部門
Sales
売上高
Operating profit
営業利益
Original Japanese label
Coal business
石炭事業
Diamond business
ダイヤ事業
Quarrying
採石事業
Business label unavailable in English
新素材事業部門
Sales
売上高
Operating profit
営業利益

What is growing?

What is growing?

Business revenue growth

This describes a reported period; it is not a forecast.

What has changed?

What has changed?

Not disclosed or not safely comparable in the available filings.

Source

Public filing

FY2025 · fiscal year ended March 2026

The source document may be in Japanese.

Filing ID: S100YKD1

View original filing ↗

Ask about this company

Ask about this company

The source document may be in Japanese.

根拠となる資料