Sumiseki Holdings,Inc.
1514・Standard Market・Mining
Coal Business Segment
The core business of the Sumiseki Group, handled by consolidated subsidiary Sumiseki Trading, which procures and sells coal.
| Period | Current | Previous | Change |
|---|---|---|---|
| Net sales (full-year results) | ¥9,954 million | ¥9,558 million | ↑ |
| Segment profit (full-year results) | ¥551 million | ¥469 million | ↑ |
| Segment assets (full-year results) | ¥6,721 million | ¥5,951 million | ↑ |
| Depreciation and amortization (full-year results) | ¥52 million | ¥47 million | ↑ |
| Operating profit (excluding segment items, consolidated coal business basis) | ¥634 million | ¥413 million | ↑ |
Business Details
This core segment, in which consolidated subsidiary Sumiseki Trading Co., Ltd. procures and sells coal, accounts for approximately 93% of the Group's consolidated net sales. Major customers include power and energy/manufacturing-related companies such as Nakayama Nagoya Joint Power Generation Co., Ltd. (net sales of ¥3,303 million), Mizushima Energy Center Co., Ltd. (¥2,121 million), and Toray Industries, Inc. (¥1,210 million). Dividends received from Wambo Coal Pty Ltd (Australia) are recorded as non-operating income and are not included in segment net sales.
Recent Overview
Achieved increased revenue and profit through storage space utilization and additional order acquisition despite weak coal prices
In FY2026 (ending March 2026), although coal prices trended weak throughout the year, the company secured additional orders from major customers such as power companies through thorough utilization of coal storage space. Net sales reached ¥9,954 million (up 4.1% year-on-year), and operating profit increased by ¥221 million year-on-year to ¥634 million (up 53.5% year-on-year), resulting in increased revenue and profit. Meanwhile, dividends received from Wambo Coal fell sharply to ¥2,408 million from ¥4,634 million in the prior year, weighing on consolidated ordinary profit. Toray Industries, Inc. (¥1,210 million) was newly disclosed as a major customer.
Key Products
Growth Drivers
- Securing additional orders from major customers such as power companies through effective use of coal storage space
- Expansion of customer base through new sales development activities (acquisition of new major customers such as Toray)
- Expansion of coal handling volume through strengthening in-house call center and coal yard functions (medium-term management plan initiative)
- Response to customers' fuel conversion shift toward biofuels for decarbonization (capturing new demand)
- Earnings opportunities from coal price spikes in the latter part of the fiscal year due to factors such as escalating tensions in the Middle East
Risks
- Pressure on segment earnings from prolonged weak coal prices and market softness
- Decline in domestic coal demand due to easing energy demand
- Structural mid-to-long-term decline in coal demand due to progress toward carbon neutrality (decarbonization)
- Fluctuation in dividends received from Wambo Coal (Australia) (down ¥2,226 million year-on-year to ¥2,408 million in FY2026)
- Fluctuations in coal market conditions and foreign exchange rates due to U.S. trade policy and geopolitical risks, among other factors
Last updated: June 25, 2026

