Environment
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.” Six 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 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 (Global total)For data on the Enplas Group’s ESG performance (from fiscal 2019 onward), please see the ESG Data.
Energy
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.
■Energy use inside organizational boundary (portion that is renewable energy)
(Global total)
FY2023: Electricity in Global 35,713 Mwh(portion that is renewable energy *Including Enplas group companies in Japan: 456 Mwh)
FY2023: Gas in Global 66,275.7 m3
FY2023: Gasoline in Global 66,540.8 L
■Energy use outside organizational boundary (portion that is renewable energy)
FY2023: Not accounted for
■Energy reduced through energy efficiency
FY2023: Not accounted for
■Total direct (Scope 1) GHG emissions (converted to CO2e)
FY 2023: (Scope 1) GHG emissions in Global 533.73t-CO2
■Total indirect (Scope 2) GHG emissions (converted to CO2e)
FY2023: (Scope 2) GHG emissions in Global 18,036.72t-CO2
■Total other indirect (Scope 3) GHG emissions (converted to CO2e)
FY 2023: Not accounted for
■GHG intensity of the organization
FY 2023: Not accounted for
■GHG emissions reduced as direct result of emissions reduction efforts (converted to CO2e)
FY 2023: Not accounted for
■Production, import and export of ozone depleting substances (ODS) (converted to CFC-11 (trichlorofluoromethane))
FY 2023: Not accounted for
■Nitrogen oxides (NOx), sulfur oxides (SOx) and other significant atmospheric emissions
FY 2023: Not accounted for
■Other
FY 2023: Not accounted for
■Kanuma Plant
Kanuma Plant uses high-efficiency HVAC systems. It is also converting lighting used in manufacturing facilities, offices, and conference rooms to LEDs.
And in February 2024, Enplas installed 3,270 solar cells on the roof and parking space of Kanuma Plant. The solar cells reduced 20% of electricity consumption at Kanuma Plant. We strive to take actions proactively to achieve our CO2 emissions reduction goal.

Water
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 : Fresh and other water types for each source (surface, ground, ocean, produced, third-party)
Fresh water (no other type of water is discharged)
FY 2023: Withdrawal in Global 43,114 m3
■Breakdown of total water discharge 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 2023: Surface water in Global 38,564 m3
Waste
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 usage at respective production sites
FY2023: Molded plastic material usage: 4,867 tons (global)
■Plastic recycled and recycling rate by production site
FY2023: Recycled 545tric tons (global)
*The amount of plastic material recycled is relatively low because most is shipped out as final products.
Recycling rate in FY2023 approx. 65%
*Ratio calculated based on mass of plastic recycled and wasted (Recycling rate = Plastic recycled/(Plastic recycled + Plastic wasted))
■Percentage of recycled materials used
FY2023: 0%
■Percentage of products reused
FY2023: 0%
Environmental education
We conduct environmental education at each manufacturing site. At Kanuma Plant, environmental education is focused especially on new employees. We also conduct environmental education, including tests, for all employees in Japan.

Environmental audit
We conduct periodic environmental audits. In FY2023, we conducted an audit at Kanuma Plant.
■Number of improvements requested
FY2023 Kanuma Plant 2
Appropriate corrections are made in response to requests for improvement.
■Improvement measures
・Revision of environmental targets
・Improvement of waste separation
Legal and regulatory violations
In Japan, there were no regulatory violations resulting from the leakage of HFCs, oil, waste, or chemicals in FY2023.
- Sustainability
- Sustainability at Enplas
- TCFD
- Environment
- Environmental Policy
- Environment
- Social
- R&D
- Compliance
- Human Capital
- Supply Chain