Recycling of Resources
Basic Approach
Hitachi High-Tech Group is aspiring to create a resource efficient society, as part of our efforts for a 50% or greater improvement in efficiency of resource use compared to the base year, by FY2050 and our final goal of zero emissions (less than 0.5% of volume of waste generated) through reduction based on environmentally conscious design for in-house products, recycling with carefully sorted collection, and reuse of unused goods.
Independent Assurance
In order to enhance the credibility of this report, FY2022 figures marked with 
have received independent assurance from SOCOTEC Certification Japan Co., Ltd. in accordance with the International Standard on Assurance Engagements (ISAE) 3000 and ISO14064-3.
Initiatives
Reduction in the Volume of Waste Generated / Higher Rate of Reuse of Resources
At our 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 FY2022 activities seeking to improve the volume of waste generated per unit by 35.1% (base year: FY2010) realized an improvement of 38.9%, meeting the target. We use a proprietary Hitachi High-Tech Group tool to centrally manage the volumes generated and exported of hazardous waste for each category of waste and ensure strict compliance with relevant laws and regulations and proper disposal within the Group.
Performance Data
Changes in Volume of Waste Generated in Japan –Improvement Rate per Unit
* Reporting boundary: Hitachi High-Tech (excluding branches), group manufacturing companies (excluding Hitachi High-Tech Kyushu and Tokyo Solution Laboratory), and service companies in Japan
* Energy usage improvement rate per unit: The rate of improvement over the base {(1 - base units of the relevant site for the relevant fiscal year/base units of the relevant site for the base year) × environmental impact at the relevant site for the base year calculated by group companies in Japan}
* Figures up to FY2018 are on a 2005 fiscal year basis, and from FY2019 on a 2010 fiscal year basis.
Changes in Volume of Waste Generated and Final Disposal Ratio in Japan
* Reporting boundary: Since FY2022, Hitachi High-Tech (excluding branches), Group manufacturing companies in Japan (excluding Hitachi High-Tech Kyushu and Tokyo Solution Lab), and service companies.
* Figures include waste, including valuable resources, generated from manufacturing activities
Changes in Volume of Waste Recycled and Rate of Reuse of Resources in Japan
* Reporting boundary: Since FY2022, Hitachi High-Tech (excluding branches), Group manufacturing companies in Japan (excluding Hitachi High-Tech Kyushu and Tokyo Solution Lab), and service companies.
Changes in 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 (Figures only include overseas manufacturing group companies from FY2017. Hitachi High-Tech Analytical Science was newly included in the boundary from FY2018)
Promoting the Recycling of Used Packaging Materials
As part of our efforts to achieve a recycling-based society, our Naka Area 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 Area. 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.