Environmental policy and management

Our Environmental Policy states: “We view conservation of the global environment as an important corporate responsibility and we commit to working proactively to protect the environment in all areas of development, manufacture, and sales of high-precision, high-performance plastic precision parts and products.” Seven of our business sites (see table) which have an environmental management system carry out these activities based on an environment manual.
The Environmental Committee, which reports directly to the president, discusses environmental issues of the Enplas Group. Subcommittees at respective business sites advance projects connected to these issues. Matters that require decision-making on a Group level are submitted for approval to the Corporate Strategy Meeting.

Environmental Policy

Sites with an environmental management system

Environmental targets

We set annual environmental targets for each subcommittee of the Environmental Committee, conduct progress checks, and aggregate environmental impact data.

Environmental considerations in manufacturing Processes

Because we manufacture parts made of engineering plastics, energy use in injection molding and engineering plastic materials are important environmental aspects of our business. For this reason, we are focused on saving energy in manufacturing processes and in using engineering plastic resources efficiently.

■Input and output flows (headquarters, Kanuma Plant, Yanagisaki warehouse)



The conversion of production equipment from hydraulic to electric systems has resulted in reductions in energy use in manufacturing processes.
In terms of energy use, we keep track of electricity and gas use. We also keep track of liquefied petroleum and natural gas use to identify our direct greenhouse gas emissions (Scope 1). For indirect greenhouse gas emissions (Scope 2), we keep track of emissions from electricity use. To prevent the leakage of hydrofluorocarbons (HFCs), we conduct periodic inspections of HVAC equipment.
■Kanuma Plant
Kanuma Plant uses high-efficiency HVAC systems. It is also converting lighting used in manufacturing facilities, offices, and conference rooms to LEDs.
■Energy use inside organizational boundary (portion that is renewable energy)
Fiscal Year 2019: Electricity in Japan 6,860,210 Kwh
Fiscal Year 2019: Gas in Japan 1,449 m3
Fiscal Year 2019: Gasoline in Japan 24,009 L
Fiscal Year 2019: (no use of renewable energy)
■Energy use outside organizational boundary (portion that is renewable energy)
Fiscal Year 2019: Not accounted for
■Energy intensity
Fiscal Year 2019: 0.04749 (Headquarters), 4.398 (Kanuma Plant)
■Energy reduced through energy efficiency
Fiscal Year 2019: Kanuma Plant 40,040 kw (from installation of LED lighting)
■Total direct (Scope 1) GHG emissions (converted to CO2e)
Fiscal Year 2019: Kanuma Plant 3,368 t-CO2
■Total indirect (Scope 2) GHG emissions (converted to CO2e)
Fiscal Year 2019: Not accounted for
■Total other indirect (Scope 3) GHG emissions (converted to CO2e)
Fiscal Year 2019: Not accounted for
■GHG intensity of the organization
Fiscal Year 2019: Kanuma Plant 1,097 t-CO2
■GHG emissions reduced as direct result of emissions reduction efforts (converted to CO2e)
Fiscal Year 2019: Kanuma Plant 19 t-CO2 (from installation of LED lighting)
■Production, import and export of ozone depleting substances (ODS) (converted to CFC-11 (trichlorofluoromethane))
Fiscal Year 2019: Not conducted
■Nitrogen oxides (NOx), sulfur oxides (SOx) and other significant atmospheric emissions
Fiscal Year 2019: Unable to be measured


None of our manufacturing sites in Japan are located in areas with high water stress. We use clean water to wash and cool molds in the manufacturing process, but this amount is equivalent to that used residentially and commercially in toilets, etc.
■Kanuma Plant
Water used for washing molds and other manufacturing processes is released as wastewater after first treating it using pH neutralization systems to meet legal standards.
■Wastewater standards
We comply with Japan’s Water Pollution Prevention Act and the laws and regulations of each country.
■Breakdown of total water withdrawal (unit: 1,000 kL): Fresh and other water types for each source (surface, ground, ocean, produced, third-party)
Fresh water (no other type of water is discharged)
Fiscal Year 2019: Surface water 2,350 m3 (headquarters, Yanagisaki warehouse, Kanuma Plant)
Fiscal Year 2019: Ground water 6,319 m3 (headquarters, Yanagisaki warehouse, Kanuma Plant)
■Breakdown of total water discharge (unit: 1,000 kL): Fresh and other water types for each discharge location (surface, ground, ocean, produced, third-party)
Fresh water (no other type of water is discharged)
Fiscal Year 2019: Surface water 8,669 m3 (headquarters, Yanagisaki warehouse, Kanuma Plant)


To use resources efficiently, we make products using the hot runner method (which reduces waste in injection molding by heating plastic in the runners) and by reusing plastic materials in manufacturing processes.
We also recycle waste plastic and metal, selecting recycling companies appropriate for each business site. For toxic waste, we outsource processing to appropriate third-party businesses after first determining the volume and processing method.
■To reduce waste, Kanuma Plant has introduced reusable containers for parts and product transport, and also uses product trays multiple times.
■Plastic material use in production
Fiscal Year 2019: Materials used 6,456 metric tons (global)
■Plastic recycled and recycling rate by production site
Fiscal Year 2019: Recycled 26 metric tons (Kanuma Plant), 421 metric tons (sites outside Japan)
*The amount of plastic material recycled is relatively low because most is shipped out as final products.
Recycling rate in fiscal year 2019: approx. 65%
*Ratio calculated based on mass of plastic recycled and wasted (Recycling rate = Plastic recycled/(Plastic recycled + Plastic wasted))
■Mass or volume of raw materials used at Kanuma Plant
Fiscal Year 2019: 134 metric tons
■Percentage of recycled materials used
Fiscal Year 2019: 0%
■Percentage of products reused
Fiscal Year 2019: 0%

Environmental education

We conduct environmental education at each manufacturing site. At Kanuma Plant, environmental education is focused especially on new employees.


Environmental audit

We conduct periodic environmental audits. In fiscal year 2019, we conducted an audit at two sites, the headquarters and Kanuma Plant.
■Number of improvements requested
Headquarters 4, Kanuma Plant 3
Appropriate corrections are made in response to requests for improvement.
■Improvement measures
Revised method of storing fluorescent bulbs

Legal and regulatory violations

In fiscal year 2019, there were no regulatory violations resulting from the leakage of HFCs, oil, waste, or chemicals.

Social impact efforts

Each business site in the Enplas Group holds a neighborhood cleanup twice a year.