Konoshima Chemical Co.,Ltd.
4026・Standard Market・Glass & Ceramics Products
Building Materials Business
Core segment engaged in manufacturing and sale of non-combustible fiber cement building materials for residential and non-residential use
| Period | Current | Previous | Change |
|---|---|---|---|
| Segment net sales | ¥15,356 million (FY2026, ending April 2026) | ¥15,090 million (FY2025, ended April 2025) | ↑ |
| Segment profit (operating income) | ¥1,466 million (FY2026, ending April 2026) | ¥909 million (FY2025, ended April 2025) | ↑ |
| Segment assets | ¥10,925 million (end of FY2026, ending April 2026) | ¥9,981 million (end of FY2025, ended April 2025) | ↑ |
| Depreciation and amortization | ¥514 million (FY2026, ending April 2026) | ¥498 million (FY2025, ended April 2025) | ↑ |
| Increase in tangible and intangible fixed assets | ¥1,359 million (FY2026, ending April 2026) | ¥1,406 million (FY2025, ended April 2025) | ↓ |
| Segment operating margin | 9.5% (FY2026, ending April 2026) | 6.0% (FY2025, ended April 2025) | ↑ |
Business Details
Manufactures and sells fiber cement siding, eave ceiling boards, bargeboards, fireproof panels, and other non-combustible building materials for residential and non-residential/building applications. Its primary market is the domestic housing market, and it aims to improve profitability through expanded sales of high-value-added products (Premium Eave Ceiling Board, siding, and Calcium Silicate Board "Pri-Keikaru"). In FY2026 (ending April 2026), net sales were ¥15,356 million, accounting for approximately 54.8% of consolidated net sales.
Recent Overview
Operating income improved significantly, up 61.2% year on year, driven by price pass-through and expanded sales of high-value-added products
In the Building Materials Business for FY2026 (ending April 2026), net sales reached ¥15,356 million (up ¥265 million, or 1.8%, year on year), and segment profit reached ¥1,466 million (up ¥556 million, or 61.2%, year on year). In the residential sector, "Pri-Keikaru" declined, while expanded sales of Premium Eave Ceiling Board and siding drove increased revenue. In the non-residential sector, although delays in building construction continued, expanded sales of Premium Eave Ceiling Board for commercial facilities limited the decline in revenue to a minor amount. Price pass-through effects also contributed significantly to profit improvement. Meanwhile, in the overall housing market, new housing starts declined 12.9% year on year in FY2025 due to a pullback following front-loaded demand ahead of the enforcement of the revised Building Standards Act and the Building Energy Efficiency Act.
Key Products
Growth Drivers
- Increased revenue from expanded sales of high-value-added products (Premium Eave Ceiling Board, "Dresse Premium" siding) to residential and commercial facility markets
- Profit improvement through price pass-through effects (absorbing rises in fuel and raw material costs)
- Creation of new demand through the October 2026 launch of "ZESTA," a CO2-fixing product using exhaust gas
- Expected expansion in demand for environmentally conscious products (pre-cut compatible, labor-saving installation products)
- Productivity improvement through smart factory transformation via AI and IoT technology adoption
Risks
- Decline in new housing starts due to a pullback following front-loaded demand ahead of the enforcement of the revised Building Standards Act and the Building Energy Efficiency Act (down 12.9% year on year in fiscal 2025)
- Risk of revenue decline due to continued delays in building construction in the non-residential sector
- Cost pressure from persistently high fuel and raw material costs
- Medium- to long-term contraction of the domestic housing market due to the ultra-low birthrate and aging society
- Uncertainty in the raw material and fuel procurement environment and demand trends stemming from US tariff policy and the situation in the Middle East
Last updated: July 14, 2026