Material Flows and Investments in Environmental Protection

The figure below shows inputs, including raw materials and energy, and outputs that are products and emissions released into the environment.

The Group is working to minimize its impact on the environment by means of waste reduction and resource savings through promoting more efficient use of raw materials, energy, and water. We have also been advancing CO2 emissions reduction through our carbon neutral efforts. In fiscal 2021, we managed to avoid the effects of the spread of COVID-19, and production in the semiconductor-related field as well as in other business fields became more active, resulting in major growth across many items, including raw material input and product sales volume. In addition, the SB Kawasumi Group has been subject to environmental management since fiscal 2021, and data has been included in the current calculations. On the other hand, the switch to electricity from renewable energy sources and the active promotion of solar power generation on the company's premises since fiscal 2021 have kept greenhouse gas (CO2) emissions low relative to the increase in our production activities. Through the ongoing activities of our Group, we are contributing to the response to aspects of climate change such as warming by working to effect reductions in outputs that affect the environment, with respect to increases in input.

Material Flows
  • *1 The ratio of renewable raw materials to total raw materials used is about 3.0% at the current point in time, but we will make efforts from the development stage onward in order to increase the ratio of renewable raw materials use.
  • *2,3,4 and 6 See the glossary. SOx, NOx, and soot and dust are calculated using the company’s own formula based on exhaust gas readings and fuel usage amount, among other variables. Since methods of calculating emissions of soot and dust differ among countries, this figure is compiled solely for business sites in Japan at present. COD is calculated based on the measured concentration and drainage volume. Data on overseas COD covers sites that measure COD within drainage. Data for overseas sites are stated separately because the types of oxidant (potassium dichromate is mainly used overseas) used for measurement differ from those used in Japan.
  • *5 Drainage volume is determined by calculating drainage into sewages based on the breakdown of total usage. Drainage into public water areas is calculated using readings from flow meters installed at business sites; while water usage volume is used for business sites without flow meters.
  • *7 The volume of hazardous waste found in our total waste volume came to 6,247 t (based on the definitions used by each country). The volume of hazardous waste is not subject to assurance.
  • * The volume of products shipped and value of products sold are not subject to assurance.

Investments for Environmental Protection

Our Group has compiled data annually on the amounts of investments in environmental protection of all Group companies in Japan since fiscal 2000. SB Kawasumi Laboratories' investments have also been included in the tally since fiscal 2021. In fiscal 2021, a total of 303 million yen of this type of investment were made. Since fiscal 2020, we have been engaged in a full-fledged effort to adopt solar power generation based on our commitment to carbon neutrality, and we continued to phase it in at each of our business sites in fiscal 2021. Further expansion is planned for fiscal 2022. We will continue to promote aggressive investment to reduce CO2 emissions.

Amount of Investments in Environmental Protection in Fiscal 2021
  • * Data covers the time period and business sites in Japan listed on "Editorial Policy".

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