Efficient Use of Resources

Working to Reduce Waste and Increase Recycling Throughout Product Life Cycles

Management Approach

Basic ConceptPursuing the Three R's (Reduce, Reuse, and Recycle) Throughout Product Life Cycles

Sekisui Chemical Group strives to thoroughly implement the “3 Rs” (reduce, reuse, and recycle) throughout the life cycles of its products. We also engage in Zero Waste Emissions Activities with the intention of reusing as resources all the waste we generate from our business activities.

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Environmental Medium-term Plan Targets and Directions for the FutureNew Waste Reduction Initiatives

Under its Environmental Medium-term Plan that began in fiscal 2017, Sekisui Chemical Group has set a target for reducing the amount of waste generated per unit of output by 1% every year compared with the fiscal 2016 level. Changing our perspective on reducing waste by improving production efficiency, we are taking on the challenge of shifting our emphasis from simply selling waste materials as valuable materials to generating additional value using the resin processing technologies we have developed to date.
Zero Waste Emissions Activities are being conducted in our overseas production sites. While domestic Group facilities have been certified under standards calling for zero direct landfill waste and no incineration without heat recovery in Japan, many sites overseas still bury waste.

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Zero EmissionsZero Emissions Achievement Criteria and Accreditation System of Sekisui Chemical Group

  • (1)
    Not engaging in any outside incineration without thermal utilization (thermal recycling), or landfill outside or inside of facilities (recycling ratio: 100%)
  • (2)
    If the waste quantity is small and it is a type of waste that has never been recycled before, recycling methods and relevant contractors must be identified, and a service agreement must be executed.

We also have established uniform evaluation criteria known as the Zero Emissions Achievement Evaluation List. We have established a system designed to conduct internal checks and issue approvals for the status of observance of the evaluation criteria as well as legal compliance, rules and signage for waste segregation and storage, management of related facilities and waste reduction planning and management. The list obliges us to conduct inspection of outside contractors and to clarify treatment routes in order to enhance the management system through these activities.

Recycling Construction MaterialsPromoting the Effective Use of Construction Materials to Fulfill Our Responsibilities as a Housing Manufacturer

Sekisui Chemical pursues the industry-wide recycling of construction waste produced when houses are demolished—regardless of whether such houses were built by itself or by a competitor—as part of initiatives under the Japan Prefabricated Construction Suppliers and Manufacturers Association’s environmental action plan “Eco-Action 2020”

Social Responsibility Regarding WasteAddressing the Issue of Microplastics

With regard to the waste generated by its production businesses, the Sekisui Chemical Group exchanges manifests with operators and confirms that disposal is undertaken in a sound and proper manner.
While the impact of microplastics on our oceans and marine pollution have emerged as issues of recent concern, Sekisui Chemical Group does not engage in the manufacture and sale of primary microplastics where use presupposes dissolution. However, it cannot be denied that the possibility of deterioration in the natural environment and micro-reduction does exist in the event of the improper disposal of plastic processed products being discarded or of the plastic materials that go into the manufacture of the Group’s products either during or after use.
To ensure the proper treatment of waste, Sekisui Chemical Group recognizes the important need to build social systems while promoting a shift in the awareness of each individual and undertaking education and training. The Group is taking initial steps to consider collaboration between industry, government, and academia with a view to the early resolution of issues.
Currently, Sekisui Chemical Group is a member of the Clean Ocean Materials Alliance (CLOMA) led by the Japan Initiative for Marine Environment (JaIME). Every effort is being made to promote international collaboration, consider methods for resolving issues, and engage in a variety of activities, for example in the dissemination of educational information.

Reducing Packaging MaterialsUsing Less Product Packaging

Sekisui Chemical Group has long been an environmentally conscious company, and we are reducing packaging volumes, introducing reusable boxes, and eliminating packaging wherever possible, among other initiatives. Our proactive efforts to reduce packaging since the early 2000s have enabled us to achieve results. We will continue these efforts in the future, taking further steps to reduce packaging waste.
As one initiative aimed at using less product packaging, we sell foldable shipping cartons and a range of plastic containers that help facilitate the implementation of returnable box systems.

Major Initiatives

Thermal Recycling InitiativesUsing Chips from Wood Offcuts as Fuel for Boilers

At its Chubu facility, Sekisui Heim Industry Co., Ltd. promotes the thermal recycling of waste materials produced during its manufacturing processes.
Sekisui Heim Industry Co., Ltd. crushes wood offcuts generated during the production of modular houses into chips, which are then utilized as boiler fuel for its plants that manufacture external wall panels.

Reduction of Waste Generated at Construction SitesSwitching to Factory Production to Reduce Materials That End Up Unused on Site

Modular houses are the main pillar of our housing business, and by doing as much as possible at the factory when prefabricating the modules, we are reducing the amount of construction work that has to be done on site. Thus, we are reducing waste from excess materials that end up unused at construction sites.

Performance Data

Waste Generated by Production Sites

Some past figures have been revised due to improvements in precision.

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  • Waste Generated by Production Sites and per Unit of Output (Index) / Japan

  • Waste Generated by Production Sites and per Unit of Output (Index) / Overseas

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Fiscal 2018 Annual Production Site Waste Generation and Disposal Conditions / Japan

Note: Change over previous year is in ( ) and proportion of total waste generation is in [ ].

  • Breakdown of Waste Generated at Production Sites / Japan

Index Calculation method
Generated waste amount Amount of waste generated = Amount of waste disposal outsourced + Amount recycled (use of incineration heat + materials recycling + sold at a price) + Amount incinerated in the Company; the items below are excluded:
waste generated by demolition of old houses of the clients, left-over materials at construction sites, disposal of facilities, OA equipment, etc., infectious waste generated during medical consultations / medical practices

Waste Generated on Construction Sites of New Housing

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  • Amount of Waste Generated on Construction Sites of New Housing (per Building) / Japan

  • Because of changes to the waste materials data collection method used by the Housing Company, we are revising the fiscal 2016 benchmark
Index Calculation method
Amount of waste generated on construction sites of new housing Amount of waste generated on construction sites of new housing = Amount of waste generated during construction of outer walls (at factory) + Amount of waste generated during assembly (at factory) + Amount of waste generated at construction site of new housing
Amount of waste generated per building during construction of new housing = Amount of waste generated during construction of new housing / Number of buildings sold
Target: housing business in Japan

Waste Related to Office Work

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  • Amount of Copy Paper Used at Offices per Unit of Output (Index)

Waste Disposal Methods / Overseas

  • Waste Disposal Methods at Production Sites

Attainment of Zero Waste Emissions Activity Targets

Production sites 44 plants in Japan and 12 plants overseas, including those of affiliated companies, achieved the target
Research institutes All research institutes achieved the target by fiscal 2012
Construction of new housing All production sites achieved the target by fiscal 2003
Remodeling work All production sites achieved the target by fiscal 2004
Corporate headquarters buildings in Osaka/Tokyo Achieved the target by fiscal 2005
Demolition work Specified construction materials for fiscal 2018
Recycling rate (of concrete, wood offcuts, etc.): 99%
Indicator Calculation Method
Number of production sites that achieved zero emissions Number of production sites that achieved zero emissions in that year