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Hitachi

Hitachi High-Technologies GLOBAL

Recycling of resources

Independent Assurance

In order to enhance the credibility of this report, FY2017 figures marked with have received independent assurance from KPMG AZSA Sustainability Co., Ltd. in accordance with the International Standard on Assurance Engagements (ISAE) 3000 and ISAE 3410.

Reduction in the volume of waste generated / Higher rate of reuse of resources

At Hitachi High-Tech Group companies, efforts are made to reduce the volume of waste that is generated in their business activities as well as to promote recycling of resources by maximizing recycling of generated waste.
In FY 2017, activities seeking to reduce the volume of waste generated per unit by 37.3% (base : FY 2005) realized a reduction of 39.5%, meeting the target.

Changes in Volume of Waste Generated and Final Disposal Ratio in Japan

  • * Reporting boundary: Manufacturing sites of the Hitachi High-Technologies and group manufacturing companies in Japan

Changes in Volume of Waste Recycled and Rate of Reuse of Resources in Japan

  • * Reporting boundary: Manufacturing sites of the Hitachi High-Technologies and group manufacturing companies in Japan

Amount of Waste Generated (Outside Japan)

As to the volume of waste generated at overseas subsidiaries, since FY2017 we have only been tracking hazardous wastes that are regulated in the country concerned. Going forward, we will consider activities to reduce those wastes.

  • * Reporting boundary: Overseas subsidiaries (in FY2017, this included only group manufacturing companies overseas)
*1
Influence by the target range increase
*2
From FY2017, data collation is for hazardous waste from manufacturing sites only. Until FY2016, data collation had been for waste generated by manufacturing and non-manufacturing sites.

Promoting the Recycling of Used Packaging Materials


Polyethylene garbage bags

As part of our efforts to achieve a recycling-based society, our Naka Division is actively engaged in the recycling of waste within Japan. Vinyl used in the packaging of components delivered to us is used to manufacture polyethylene garbage bags and plastic folders made entirely from this recycled material, which are then used by the Naka Division. Seeing vinyl materials separated from other waste in the workplace come back to be used again in a different form makes the concept of recycling more tangible for staff, thereby helping to increase the environmental awareness of each and every employee. Going forward, we will continue to strive to reduce waste by expanding the scope of items subject to recycling and promoting the reuse and recycling of materials used to package components.

Effective Utilization of Water Resources

Hitachi High-Tech Group companies are not operating in water-stressed environments, yet they are taking measures for effective utilization of water resources. These measures include recirculation of cooling water and reduction of the volume of water used through initiatives including the achievement of higher productivity and upgrading to water-saving equipment. In FY2017, activities aimed at improving water use efficiency at all bases in Japan were conducted with the target of "45.5% Reduction of Water Usage per Unit (Base Year FY2005)," and the result of 45.0% did not achieve the target. The reason that the target was not met was water leaks and related phenomena that accompanied equipment malfunctions. In the future, we will make every effort to conduct periodic water risk evaluations in order to avoid this kind of risk.

Changes in Water Consumption in Japan

  • * Reporting boundary: Manufacturing sites of the Hitachi High-Technologies and group manufacturing companies in Japan

Water consumption in Japan by source

(m3)

Water consumption in Japan by source
Source FY 2015 FY 2016 FY 2017
Waterworks Bureau for portable water 49,132 64,775 64,713
Waterworks Bureau for industrial water 254,586 273,126 306,152
Groundwater 17,399 17,804 41,641
Total 321,117 355,705 412,506
  • * Reporting boundary:
    FY2015－Naka Area, Kasado Area, Hitachi High-Tech Fine Systems Corp.
    FY2016－Naka Area, Kasado Area, Hitachi High-Tech Fine Systems Corp., Hitachi High-Tech Manufacturing & Service Corp.
    FY2017－Naka Area, Kasado Area, Hitachi High-Tech Fine Systems Corp., Hitachi High-Tech Manufacturing & Service Corp., Hitachi High-Tech Science Corp. Oyama Works

Water discharge volume in Japan by destination

(m3)

Water discharge volume in Japan by destination
Destination FY 2015 FY 2016 FY 2017
Off-site water treatment  70,141 95,034 98,118
Rivers 180,552 234,179 282,681
Ocean 17,399 17,076 14,489
Subsurface 53,025 8,290 10,876
Product content (consumption) － 398 294
Total 321,117 354,977 406,458
  • * Reporting boundary:
    FY2015－Naka Area, Kasado Area, Hitachi High-Tech Fine Systems Corp.
    FY2016－Naka Area, Kasado Area, Hitachi High-Tech Fine Systems Corp., Hitachi High-Tech Manufacturing & Service Corp.
    FY2017－Naka Area, Kasado Area, Hitachi High-Tech Fine Systems Corp., Hitachi High-Tech Manufacturing & Service Corp., Hitachi High-Tech Science Corp. Oyama Works

Changes in Water Consumption (Outside Japan)

  • * Reporting boundary: Overseas subsidiaries (in FY2017, Hitachi High-Technologies Ireland and H.H.T.A. Semiconductor Equipment Israel are excluded)
  • * From FY2017, water consumption at sales sites where water consumption cannot be ascertained is being estimated from numbers of employees and water consumption at sales sites where water consumption has been ascertained

Changes in Quantity of Raw Material Inputs

  • * Reporting boundary: Manufacturing sites of the Hitachi High-Technologies and group manufacturing companies in Japan

Breakdown of raw material inputs

(t)

Breakdown of raw material inputs
Material FY 2015 FY 2016 FY 2017
Iron (including steel plate)  171.4 175.0 327.0
Stainless steel 517.4 619.2 790.1
Aluminium 1,272.0 1,819.5 1,724.9
Copper 165.4 129.0 76.0
Lead 0.0 0.0 1.0
Total 2,126.2 2,742.7 2,919.0

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