Environmental Initiatives

Reduction of Greenhouse Gas Emissions


The Sanwa Group contributes to the realization of a sustainable, affluent society through the reduction of CO2 and other greenhouse gases in order to appropriately address climate change risks.

Initiatives to Reduce Energy Consumption in Logistics and at Facilities(Japan)

The introduction of management system contributed to a more efficient use of logistics energy
Demand monitoring
system at Shizuoka Plant

Sanwa Shutter Corporation has created and operates an environmental management system based on ISO 14001 in an effort to reduce energy Consumption in logistics and at facilities.
To reduce the use of energy in logistics, the company makes mixed-load deliveries of multiple products using depots (small-scale delivery centers) in the Tokyo metropolitan area, Sendai and in Shikoku. Also, in July 2020, the Sanwa Shutter Corporation introduced a vehicle allocation and warehouse management system to improve the efficiency of vehicle allocation operations and inventory management, including receiving and sending cargo. The goals were to improve the loading rate as well as to reduce the number of allocated vehicles.
To reduce the use of energy at facilities, the company has switched to using LED lighting in offices and plants, upgraded its air conditioning units and is reducing facility operating hours by enhancing productivity. At each plant, with the introduction of a demand monitoring system, we are reducing energy consumption by visualizing electricity usage at all times.
In fiscal 2019, domestic CO2 emissions decreased by approximately 0.6%, even when including Suzuki Shutter Corporation within the scope covered. This was due to introducing energy-saving equipment, promoting Companywide energy savings, and from electric power companies reducing their CO2 emissions.

Initiatives to Reduce Energy Consumption at Facilities (North America)

Pensacola plant of ODC uses computer-controlled lighting and an energy-efficient air-conditioning system in order to reduce unnecessary electricity use.
Other initiatives to reduce energy consumption include installing skylights at the Sales Center in Pensacola, switching all lighting to LEDs at the Williamsport Plant, and changing out exterior lighting to lower wattage lightbulbs at the Matamoros Plant in Horton.

  • Air-conditioning system at Pensacola plant
  • Computer-controlled energy-efficient system

Initiatives to Reduce Energy Consumption at Facilities (Europe)

The NF Group has acquired ISO 14001 certification for six plants, which are two plants in Germany(Werth plant, Riexinger plant), two plants in Netherlands, NF Door's plant in Poland and Robust AB's plant in Sweden. These plants are working to reduce their energy usage. Switching to LED lighting and introducing motion sensors and light/darkness sensors contributes to reducing the amount of electricity used and electricity fees. Further, at the Riexinger Plant, waste heat from compressors is reused to heat water tanks, and in the Tormatic Plant, where door openers are manufactured, approximately 3,600 kWh of electricity was generated over two years using a mini solar power system installed on the roof.

LEDs and motion sensors at Werth plant in Germany
LEDs and motion sensors at Werth plant in Germany

Collaboration with external organizations

As a member of Keidanren (Japan Business Federation), the Sanwa Group exchanges information related to climate change. Moreover, the Representative Director Chairman of Sanwa Shutter Corporation, our Group company, has served as Chairman of the Japan Rolling Shutters & Doors Association (JSDA), and has been working hard on flood prevention. The goal is to create a resilient society that can withstand intensifying natural disasters due to climate change.
Sanwa Shutter Corporation complies with Japan’s Law Concerning the Rational Use of Energy, a law that addresses climate change in Japan. As well, we submit reports to the government once a year on energy consumption, our achievement of energy conservation targets, and greenhouse gas emission volumes.

Appropriate Waste Management


The Sanwa Group strives to promote recycling, minimize waste and reduce the environmental burden in all departments.

Initiatives to Reduce Waste (Japan)

Ota Door Plant

Sanwa Shutter Corporation strives to improve waste separation as a means to reduce waste from our plants and is taking steps to improve yield by reusing of wooden pallets used in transportation and changing the dimensions of parts and materials. In addition, at Ota Door Plant and Hiroshima Plant, our core door plants, paint adhesion rates have increased and the amount of waste coating has fallen significantly as a result of major improvements to our coating line.

Appropriate Waste Management

Item   FY2016 FY2017 FY2018 FY2019 FY2020
Waste Emissions(t)   2067 2000 2121 2061 -
Waste Emissions intensity per amount of product shipped (Kg/Million Yen) Target 37.38 37.01 36.62 35.50 35.13
Result 38.76 35.64 35.85 34.85 -

Objective Scope:Sanwa Shutter Corporation (Factories)

Collaboration with external organizations to reduce waste and use of resources

Saw dust at Venix Co., Ltd.

At Venix Co., Ltd., a manufacturer of partitions, waste wood (sawdust) produced during the fabrication of toilet booths was previously disposed of, but now it is sold as a valuable resource to disposal businesses. In this way, we are contributing to a reduction of waste (monthly average volume: 11.7 metric tons). Most of the sawdust is eventually reused as bedding in cow barns.

Initiatives to Reduce Waste (North America)

At Overhead Door Corporation (ODC) plants, metal scraps and other waste are sorted by part and type, then recycled. This initiative also contributes to the effective use of resources and waste reduction.
We ourselves developed and installed a system for removing zinc from powder coating wastewater at Lewistown plant of ODC, which handles shutter manufacturing. This system makes possible the efficient removal of zinc to stricter standards than those mandated by the U.S. Environmental Protection Agency. It is also easy to operate.

  • Metal scraps
  • Cardboards
  • Lewistown plant of ODC
Recycle of toner cartridges

At all our business locations, we install recycling bins in offices and conference rooms, and we recycle toner cartridges, as part of our efforts to reduce waste. In addition, the Sales center in San Francisco is producing wood chips from sawdust, and using them for flower beds, etc.

Initiatives to Reduce Waste (Europe)

New powder coating line at Riexinger plant

The NF Group’s Riexinger plant, a door manufacturing plant in Germany, has introduced a new powder coating line. Powder coating provides a high-strength, high-quality coating and enables the paint to be recycled, so it results in conservation of resources while reducing paint loss.

Initiatives to Reduce Waste (Asia)

Improvements in placement efficiency during nesting increase yields

An-Ho Metal Industrial Hsinchu Plant has increased yields 4.4% by purchasing steel sheets that match the size of finished door frames and by improving placement efficiency during steel sheet nesting. These moves contributed to the effective use of resources and the reduction of waste.

Promotion of Green Purchasing


The Sanwa Group actively conducts environmental management by promoting green purchasing that prioritizes materials with minimal environmental impact.

Promoting 3Rs for Packaging Materials (Japan)

At Sanwa Shutter Corporation, manufacturing and purchasing departments take the lead in visiting plants and suppliers to propose improvements to promote the 3Rs (Reduce, Reuse, Recycle) for packaging materials.
Specifically, we encourage the use of reusable shipping cartons*, the simplification of packaging and reducing the use of wood by reusing wooden pallets.
*Recyclable cartons are used to transport materials, parts and products between suppliers and plants

Set Green Purchasing Ratio (Sanwa Shutter Corporation)

Sanwa Shutter Corporation promotes green purchasing to source materials and parts that have a low environmental impact throughout the supply chain.
The company issued “Green Purchasing Guidelines” as a guide for sourcing materials in 2009 and promotes eco-friendly purchasing activities together with our suppliers in an effort to ensure we live in harmony with the global environment.
A green purchasing ratio was set in fiscal 2018, and the company commenced initiatives to boost the ratio by making recommendations and through dialogue with suppliers.

Green Purchasing Evaluation Standards

  • Status of acquisition of certifications from third-party certification organizations (ISO 14001 etc.)
  • Requirements for establishing and operating an environmental management system
  • Management of environmentally hazardous substances contained in products
  • Environmental impact on business activities
  • Environment-related laws and regulations