Circular Economy
Conservation of Water Resources
Perceptions and Policies on Water Resources
In response to the risk of drought due to climate change and the shortage of water resources due to global population growth, the demand side is required to effectively utilize water resources such as groundwater, rainwater, and reuse of wastewater and recycled water to ensure the stability of water supply.
MIRARTH HOLDINGS Group's environmental policy stipulates that the Group will work to conserve the water environment and reduce its environmental impact as part of its "Promotion of Resource Recycling.” For office buildings and commercial facilities developed by the Group, we will promote the effective use and appropriate management of water resources from the design stage to reduce water consumption. Also, we are systematically updating facilities with water-saving equipment that contributes to reducing environmental impact in renovation projects.
Targets and Achievements
Water Consumption Reduction Targets
In real estate development and renovation projects, we will promote the introduction and switchover of water-saving devices etc. In addition, we will improve the rules and regulations of the "Design Standards" and "Quality Manual."
Actual Water Consumption
| Item | Unit | FY2022 | FY2023 | FY2024 | FY2025 |
|---|---|---|---|---|---|
| Actual Water Consumption | ㎥ | 62,979 | 61,950 | 59,616 | 42,099 |
| Water usage per unit | ㎥/㎡ | 0.511 | 0.528 | 0.488 | 0.707 |
| Applicable total floor area | 1,000 m² | 123 | 117 | 122 | 60 |
- * The scope of calculation covers MIRARTH HOLDINGS and consolidated subsidiaries.
- * Some figures for water usage include estimated values.
- * The figures for fiscal year 2025 are provisional and may change.
Waste Reduction
Perceptions and Policies on Waste Reduction
With the emergence of global resource constraints and the increasing frequency and severity of disasters, the situation surrounding waste disposal and recycling is changing dramatically. We recognize the need for companies that generate waste to reduce emissions and properly manage waste disposal.
MIRARTH HOLDINGS The Group has established its commitment to reducing environmental impact and contributing to the formation of a "circular society" by promoting the 3Rs (Reduce, Reuse, Recycle) in Environmental Policy. Furthermore, at every stage of building design, construction, operation management, and demolition in our group's business activities, we will thoroughly separate recyclable waste and reduce waste emissions.
Targets and Achievements
Waste Emission Reduction Targets
Regarding waste emissions, we will strive to reduce waste emissions per unit of production from the previous year by promoting the 3Rs (reduce, reuse, recycle).
Actual Waste Reduction
| Item | Unit | FY2022 | FY2023 | FY2024 | FY2025 |
|---|---|---|---|---|---|
| Recyclable waste emissions | t | 120 | 525 | 403 | 335 |
| Actual Waste Reduction | t | 2,093 | 2,147 | 1,990 | 1,108 |
| Waste emission intensity | kg/㎡ | 26.5 | 30.0 | 30.3 | 20.1 |
| Applicable total floor area | 1,000 m² | 79 | 72 | 66 | 52 |
- * The scope of calculation covers MIRARTH HOLDINGS and consolidated subsidiaries.
- * Some figures for waste emissions include estimated values.
- * The figures for fiscal year 2025 are provisional and may change.
Closed-loop resource
タカラレーベンとSMFLみらいパートナーズ株式会社、株式会社イチケン、東京製鐵株式会社、エムエム建材株式会社の5社は、2026年3月、鹿児島県霧島市で進行中の旧「かごしま空港ホテル」の建替えプロジェクト「HOTEL LEBEN PLACE KAGOSHIMA AIRPORT（仮称）」計画において、既存建物の解体に伴い発生する鉄スクラップを同ホテルの新築建材の原料として再利用する循環スキーム「資源のクローズドループ※の取り組み」に合意しました。
本取り組みでは、SMFLみらいパートナーズおよびタカラレーベンが共同で推進している「HOTEL LEBEN PLACE KAGOSHIMA AIRPORT（仮称）」計画において、建替えに伴い解体工事で発生した鉄スクラップを国内で再資源化し、新築建材として同一プロジェクト内で活用するクローズドループを構築しています。
Currently, a portion of the iron scrap generated from domestic real estate demolition projects is being exported overseas without proper management or traceability, posing a challenge to the entire construction industry. Through collaboration among relevant companies, we have visualized the entire process from generation to reuse and implemented a resource recycling scheme that is completed domestically. Moving forward, we will continue to deepen our collaboration with relevant companies, conducting verification and improvements through this project, with the aim of advancing and standardizing resource recycling in the construction industry.
- * Closed-loop resource system: A circular system that continuously recycles and utilizes resources as materials within the lifecycle of a specific project or product, without discarding them.
Recycling Umbrellas
Our Group collects plastic umbrellas left in the company's umbrella stands and donates them to MONDO DESIGN co., ltd’s "Umbrella Recycling Program." Under this program, the plastic parts of the collected umbrellas are upcycled into products under MONDO DESIGN 's brand, PLASTICITY. The purchase price of the plastic umbrella materials will be donated to "greenbird," a certified NPO that conducts community development through cleanup activities in Japan and around the world and will be used for tongs to pick up trash and for operating expenses for the team to clean up the city.
Donation of Office Supplies
Leben Home Build and Takara Leben Realnet donated office supplies such as clear files, binders, and calendars. Due to internal aging and decreased usage frequency, unwanted items such as clear files, binders, and calendars that were no longer needed were donated to "Second Life," operated by the NPO Good Life. Donated office supplies will be reused both domestically and internationally, and each box of cardboard boxes will provide vaccines for two people.