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Water, Waste and Emissions

The conservation of the global environment is one of our most important management issues

Initiatives for reducing environmental footprint

Waste reduction

We strive to reduce the amount of waste generated in our business activities, and also conduct efforts to develop technology toward reusing and recycling.
In the Environmental Action Plan revised in 2018, we set a target basic unit (calculated by dividing the amount of waste generation excluding waste to be reused and recycled by net sales) at each business site, striving to reduce the amount of waste generation throughout the group.
Of the amount of waste in FY2018, 69% within Japan and 11% overseas were recycled and used either within or outside of our company.

Amount of waste generation

Waste, water, air and hazardous materials

※ The amounts from overseas sites have been added starting FY2017.
※The value for the amount within Japan in FY2017 disclosed last year has been revised.

Use of recycled raw materials

We work on the recycling of waste by using resources as effectively as possible. In this process, we establish separation and purification technologies in accordance with the materials, as well as make technological improvements and renew existing manufacturing equipment for each production process, and develop a network for collecting recycled raw materials.
In FY2018, the use of recycled raw materials exceeded its use of natural resources such as ore. Recycled materials accounted for 41.7% and 36.9% of the total raw materials used in domestic and overseas sites respectively.

Breakdown of usage by type of raw material (FY2018)

Breakdown of usage by type of raw material  (FY2018)

Primary raw materials Unused natural products such as ore
Secondary raw materials Unused products, parts, etc. manufactured or processed by another company
Recycled raw materials Used products that have become waste, by-products of another company, etc.

Water resource conservation

We strive to reduce and recycle water used in the business operations. Water-related risks that could have an impact on our business have not become apparent as of today. Water-related risks that could have an impact on our business have not become apparent as of today. We will advance efforts to evaluate water-related risks from multiple perspectives that include physical risks, such as the drying up of water resources and the lack of sufficient amounts of water, as well as regulatory risks related to the use of water. These efforts will also help us reduce the risks in our business.
The total water usage amount in FY2018 was 50,128 thousand m3, a reduction of 3.2% compared to FY2017. Furthermore, the circulated water usage through reusing and recycling was 8,815 thousand m3, an increase of 7.0%from FY2017.

Breakdown of water use (FY2018)

Breakdown of water use  (FY2018)

Prevent air and water pollution

Each manufacturing site of Mitsui Kinzoku Group monitors the following in accordance with laws, regulations and ordinances and voluntary standards: Sulfur oxide (SOx) emissions produced on the combustion of fossil fuels containing sulfur, nitrogen oxide (NOx) emissions from boilers, incinerators and other combustion equipment, and particulate matter, as well as water quality including BOD and COD which indicate the level of organic material in wastewater. We work on gathering and managing the monitoring results from each site, and sharing the initiatives and the technologies within the Group.

Emissions to the atmosphere (FY2018)

Emissions to the atmosphere (FY2018)

Emissions to the water (FY2018)

Emissions to the water (FY2018)

Reduction of hazardous chemical substances emissions

Each manufacturing site of the Group files the release and the transfer amount of chemical substances to the government under the Act on Confirmation, etc. of Release Amounts of Specific Chemical Substances in the Environment and Promotion of Improvements to the Management Thereof (Law concerning Pollutant Release and Transfer Register [PRTR] ).
We also respond to the guidelines for chemical substances contained in products, such as the RoHS Directive and the REACH regulations required by customers We aim to reduce the emission amount of environmental pollutants in accordance with our Environmental Action Plan, including our overseas sites.
We continuously strive to collect and replace chemical substances that may cause environmental pollution. Thus we focus to reduce or remove use of such chemical substances from our products.

Volume of chemical substances released and transferred

Volume of chemical substances released and transferred

Waste, water, air and hazardous materials

ESG Data Environment Waste, water, air and hazardous materials

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