Announced details
Residential construction; addressing challenges such as labor shortages among skilled workers in the construction industry; and environmentally and health-conscious housing
Approximately 5 times the strength of the previous model
Approximately 50% lower CO₂ emissions than reinforced-concrete housing (company estimate)
A business relationship in which our model home was featured in Shinkenchiku, published by 株式会社新建築社.
Publisher of the architecture magazine Shinkenchiku. Other information, including its location, representative, capital and year of establishment, is not disclosed.
On 3 December 2025, we obtained a patent for the formulation and manufacturing technology of a new construction material primarily made from soil. The patent number and expiry date are not disclosed.
Approximately 100 m²
We believe the impact on the earnings forecast for the fiscal year ending June 2026 will be immaterial. We will promptly disclose any matters that should be disclosed in the future.
The company does not address Contract Value / Offering price.
April 2026 issue of Shinkenchiku, published by 株式会社新建築社 (published 1 April 2026, pages P.168–P.171)
| Item | Details |
|---|---|
| Names of Products / Services Covered | Lib Earth House “model B”, Soil-based 3D-printed house |
| Counterparty | 株式会社新建築社 |
| Counterparty overview | Publisher of the architecture magazine Shinkenchiku. Other information, including its location, representative, capital and year of establishment, is not disclosed. |
| Relationship with the Company | A business relationship in which our model home was featured in Shinkenchiku, published by 株式会社新建築社. |
| Applicable area | Residential construction; addressing challenges such as labor shortages among skilled workers in the construction industry; and environmentally and health-conscious housing |
| Registration number and expiry date | On 3 December 2025, we obtained a patent for the formulation and manufacturing technology of a new construction material primarily made from soil. The patent number and expiry date are not disclosed. |
| Location scale | Approximately 100 m² |
| Quantitative Effects | Approximately 5 times the strength of the previous model, Approximately 50% lower CO₂ emissions than reinforced-concrete housing (company estimate) |
| Impact on Business Performance | We believe the impact on the earnings forecast for the fiscal year ending June 2026 will be immaterial. We will promptly disclose any matters that should be disclosed in the future. |
| Source | April 2026 issue of Shinkenchiku, published by 株式会社新建築社 (published 1 April 2026, pages P.168–P.171) |
Items this document does not state (8)
These are items the company does not state in this document. We do not leave them blank, nor fill them in from other sources or by inference.
The reasons the company gives
The company's own explanation, not something inferred from the numbers.To introduce the curved designs created using 3D printing, the development history, and initiatives using construction 3D printers focused on the environment and health in Shinkenchiku.