Environmental Data

• Contributing to the mitigation of global warming by reducing energy consumption and CO2 emissions at our business sites through ongoing facility upgrades and operational improvements

The amount of greenhouse gas emissions from all our sites in Japan is converted to a CO2 equivalent weight as shown below.

The above greenhouse gas emissions amount (t-CO2) is calculated by taking the total of the WRI/WBCSD GHG Protocol Scope 1 and Scope 2 emission amounts.

[Conversion factor]
Purchased electricity: Uses each electric company's conversion factor for the Act on the Rational Use of Energy report
Liquefied petroleum gas: 6.527 tons of CO2/1,000 ㎥, town gas: 2.23 tons of CO2/1,000 ㎥,
heat: 0.057 tons of CO2/GJ, gasoline: 2.29 tons of CO2/kL,
light oil: 2.62 tons of CO2/kL, kerosene: 2.5 tons of CO2/kL

• Contributing to the creation of a circular economy by achieving net zero industrial waste emissions

Amount of Waste

The total amount of waste generated at our business sites is as follows. We promote effective utilization through heat recovery, recycling, and other means at all office and factory sites.

We set a goal for 5% or more reduction in the amount of waste, down to 527 tons or less from the 555 ton average of fiscal years 2012 to 2014. Our actual results from fiscal 2024 were 236 tons (-57%).

• Appropriate management of water resource usage at business sites

Water Consumption Amount

At each site, we use tap water for domestic use and to humidify the office in winter. At our Headquarters, we use ground water to water our plants in summer, and at our Headquarters and the ProDeS Center, we use ground water to melt snow. We use water for our every day needs at our company sites, not for industrial purposes.

For our total water consumption amount, we set a target to reduce it by 1% or more to an amount of 35,600㎥ or less compared to the reference year of 2018. In fiscal 2024, we achieved our target with a result of 32,000 ㎥ (a 10% reduction). Snowfall was heavier than in the previous fiscal year, resulting in increased use of groundwater (for snow melting).

Our water is used for every day purposes. We do not have any water that can be reused or recycled.

Water Drainage Amount

Tap water used for domestic uses drains into the sewer. Ground water used to melt snow drains into the rivers, and water used to water plants drains underground. We have been continuously monitoring and measuring water quality by using our own self management values in order to ensure the quality of water that drains from our main sites.

In fiscal 2024, the amount of groundwater used for snowmelt increased, resulting in an increase in the amount of water discharged into rivers.