Environment

Conservation of Water Resources

Conservation of Water Resources

Basic Philosophy

The water resources crisis is becoming more and more serious around the world, and there are concerns about water shortages due to depletion and pollution and their impact on biodiversity. Protecting the sustainability of water resources, which are essential for maintaining ecosystems, is one of the most important issues for our Group.
Our Group has set the vision for 2040 of “implementing sustainable business operations in response to global water-related risks” and set the target of “maintaining water consumption intensity below FY2018 level,” as the milestone to be achieved in 2030.
Our Group is committed to protecting the environment far into the future by promoting the efficient use of water, a precious and limited resource. We will also promote sustainable and efficient use of water resources in our supply chain.

Trends in Volume of Water Usage

The volume of drinking water, well water, and river water used in FY 2021 totaled 1.46 million m3.
In Eco Vision 2030, which we began working on in FY2021, set a goal of "maintaining water usage per unit of production at or below the FY2018 level" by 2030. The basic unit of group companies was 3.752m3/million yen, and we have achieved our target by reducing it by 30.5% compared to FY2018.
We will continue to promote the efficient use of water.

Trends in Volume of Water Usage (Niterra Group)
(NTK CUTTING TOOLS CO., LTD, KAMIOKA CERAMIC CO., LTD., and NTK Technical Ceramics Korea Co., Ltd. are included until FY2022.)

Water Resources Conservation Initiatives

Introduction of a closed system

The Niterra Plant in India has introduced a closed system in accordance with the relevant law, and no wastewater is discharged outside the plant premises.

Plant Wastewater Recycle

The Ise Plant has a wastewater treatment facility, which recycles the wastewater discharged from the Plant for reuse.

Improvement of equipment and manufacturing conditions

Ongoing efforts are being made to save water use by improving equipment and manufacturing conditions.

Utilization of groundwater

At the Komaki Plant, groundwater is pumped up and used at the plant after iron, manganese and other elements are removed at the water treatment plant.

Groundwater is an important resource, but excessive groundwater pumping often causes land subsidence. At the Komaki Plant, we conduct groundwater management in accordance with Aichi Prefecture’s environmental regulation titled “Ordinance on Preservation of the Living Environment.”
Specifically, at the time of the installation of a pump facility, we set an upper limit for groundwater extraction below the regulatory limit and ensure that the amount of groundwater extraction does not exceed the set limit. Each year, we report the amount of groundwater extraction to the Owari Prefectural Office.

NGK SPARK PLUG CO., LTD.