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: 5.98 tons of CO2/1,000 ㎥ (fixed), town gas: 2.23 tons of CO2/1,000 ㎥ (fixed),
heat: 0.057 tons of CO2/GJ (fixed), gasoline: 2.32 tons of CO2/kL (fixed),
light oil: 2.58 tons of CO2/kL (fixed), kerosene: 2.49 tons of CO2/kL (fixed)

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

Amount of Waste

The amount of waste for all our sites in Japan is shown below. We promote the effective utilization of waste through heat recovery and recycling at all of our offices and factories.

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 2023 were 291 tons (-48%).

• 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 2023, the amount of groundwater used to melt snow fell significantly due to reduced winter snowfall. As a result, we were able to achieve our target, with our actual consumption result at 27,000 ㎥ (25% reduction).

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 2023, the amount of groundwater used to melt snow fell due to reduced winter snowfall. As a result, less water drained into rivers.