Working towards a Recycling-based Society - The 3Rs of Water

The Organization for Economic Co-operation and Development (OECD) has reported that over 40% of the global population is projected to be living in river basins under severe water stress by the year 2050. The Kubota Group is involved in initiatives such as the effective utilization of water resources by promoting wastewater recycling.

Water Consumption in the Business Sites

In RY2016, water consumption was 4.86 million m3, a decrease of 3.4% compared to the previous reporting year. Additionally, water consumption per unit of sales improved by 0.2% compared to the previous reporting year. The decrease in water consumption is mainly due to the reduction of production volume at cast iron production sites in Japan and at overseas production sites for formed and fabricated materials. We are continuously promoting recycling of waste water and saving of water use.

Trends in Total Water Consumption and Consumption per Unit of Sales

Graph:Water Consumption in the Business Sites

* Water consumption per unit of consolidated net sales.

Water Consumption by Region (RY2016 results)

Graph:Water Consumption by Region (RY2016 results)

Waste Consumption by Business (RY2016 results)

Graph:Waste consumption by business (RY2016 results)

Water Consumption by Type (RY2016 results)

Graph:Water Consumption by Type (RY2016 results) Japan

Graph:Water Consumption by Type (RY2016 results) Overseas

Water Stress Survey Conducted for All Production Sites

Demand for fresh water is expected to rise sharply worldwide, due to population increase and economic growth. Meanwhile, however, supply of freshwater is likely to become increasingly unstable due to the impact of global warming, etc. Thus, there is a growing interest in "water risks," such as water shortage, flood, and torrential rain, as a factor that may have serious impact on business activities.

In order to identify the risks related to the use of water resources and find effective responses to such water risks, the Kubota Group conducted a survey concerning water stress*1 for all of its production sites.

The results of the survey on water stress of a total of 52 sites in 15 countries using WRI Aqueduct*2 and WBCSD Global Water Tool(Version2015 1.3.5)*3 are as follows:

Results of the Survey on Water Stress of Production Sites

Region/country Water stress level / number of sites
High High-Middle Middle Middle-Low Low
Asia Japan 1 9*4 9 2 0
China 0 3 1 0 0
Indonesia 0 2*4 0 0 0
Thailand 0 0 4 1 0
Saudi Arabia 1*4 0 0 0 0
Europe Russia 0 1 0 0 0
Norway 0 0 0 0 1
Denmark 0 0 0 0 1
Netherland 0 0 0 1 0
Germany 0 0 1 1 0
France 0 1 0 0 1
Italy 0 1 0 0 0
United Kingdom 0 0 1 0 0
North America Canada 0 0 0 0 1
United States 6 0 2 0 0
Total 8 17 18 5 4

Water Consumption by Water Stress Level (RY2016 results)

Graph:Water consumption by water stress level (RY2016 results)

The results of the survey showed that about half of the production sites (25 sites in total) are located in areas with water stress of the high to middle level, of which the sites in the coastal area of Osaka Bay (Japan), Saudi Arabia, and the Midwest area of the United States (eight sites in total) are located in areas with extremely high water stress. The amount of water consumption in these areas with extremely high water stress account for approx. 2% of total water consumption.

The Kubota Group has been involved in initiatives such as the effective utilization of water resources by promoting wastewater recycling. As a result of these initiatives, the Group achieved in RY2016 approx. 150,000 m3 reduction (compared to RY2014) in water consumption at production sites. Based on the results of this survey on water stress, Kubota will continue to promote the initiatives to ensure 3Rs of water.

*1 Water stress refers to the state where the annual water availability per capita is less than 1700 t and people feel inconvenience in their daily life (according to the World
Resources Institute (WRI)).

*2 A tool developed and released by the World Resources Institute (WRI) to assess water risk information

*3 A tool developed and released by the World Business Council for Sustainable Development (WBCSD) to assess water risk information

*4 For the sites with no data by river basin, assessment results by country are employed.

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