Corporate Social Responsibility Information

Efficient Use of Water Resources

Reduction of Water Consumption in Business Activities

Around the world, there is a growing sense of crisis over water shortages. It is expected that this problem will become more and more urgent as the demand for water rises with population increase and economic growth in developing countries.
Previously, the Sumitomo Forestry Group had gauged water consumption at its plants inside and outside Japan, but in fiscal 2012, the Group began examining the consumption and the associated sources at bases where actual water usage is measurable, such as at buildings owned by the Sumitomo Forestry Group. In fiscal 2015, Sumitomo Forestry conducted sample survey of water used at home construction sites and found the volume of water used per 1m2 of floor area is approximately 0.0887 m3.
In contrast, plants in Japan primarily manufacture processed wood products, such as interior materials for housing, and thus do not use large amounts of water. Nevertheless, in order to use water resources as effectively as possible, the Group employs water-saving initiatives at each plant.
The Sumitomo Forestry Group is operating its businesses in water-stressed areas and plans to start measuring its water use in such areas. The Company is also working to build partnerships with other organizations as it believes cooperation will be essential in conserving water sources.

Water Consumed by Group Companies in Japan*1 (FY2015)symbol for third party assurance
Unit: m3
Domestic Offices Domestic Manufacturers
FY 2013 FY 2014 FY 2015 FY 2013 FY 2014 FY 2015
City water 62,323 64,064 170,117 32,358 22,492 17,612
Ground water 2,547 2,970 3,438 323 201 124
Industrial water 128,329*2 109,500*2 120,306*2 186,977 173,468 166,444
Total 193,199 176,534 293,861 219,658 196,161 184,180
  • *1. Covers sites where actual water usage is measurable, such as at buildings owned by the Sumitomo Forestry Group.
  • *2. Used by Kawanokita Development Co., Ltd. at a golf course it manages for watering the turf and otherwise maintaining the course, as well as Tsukuba Research Institute for experiments.

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Efforts at Sumitomo Forestry Crest Co., Ltd.

Sumitomo Forestry Crest Co., Ltd.’s Imari (former No.2 Kyushu) Plant manufactures synthetic resin adhesives and other products. It primarily promotes three measures for reducing water usage. First, it uses industrial water to cool manufacturing equipment. Then, it reuses the water to dilute plant effluent. In fiscal 2014, the volume of industrial water used decreased by 6% compared with the previous fiscal year.

Measuring the COD of effluent

Measuring the COD of effluent

Measures Used at the Sumitomo Forestry Crest Co., Ltd.’s
Imari Plant for Saving Water
  1. 1. Collect some of the water used for washing equipment, and reuse it as a raw material.
  2. 2. Improve the proportion of rainwater used, such as by upgrading the pumps used for collecting rainwater.
  3. 3. Maintain water-quality control by measuring COD*1 and treat wastewater using only the minimum amount of water necessary.
  • *1. Chemical Oxygen Demand (COD): An indication of the amount of oxygen required to oxidize an organic compound in water; one of the most important indicators of water quality.

CSR Report 2016