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Efficient Use of Water Resources

In response to a global increase in concerns regarding water problems, Toshiba Group is promoting sustainable water resource management. In FY2015, we enhanced analysis and management of production sites located in high-water-risk regions and sites that need large amounts of water. To analyze data on high-water-risk regions, we used Aqueduct, a water risk assessment tool developed by the World Resources Institute (WRI), and we considered water problems from various perspectives, including the risk of pollution by wastewater and level of interest in water issues among area residents, in addition to the physical amounts of water resources in individual river basins.

Each of our business and production sites has incorporated reducing the amount of water received into its annual plan in order to develop specific strategies and conduct follow-up surveys on an ongoing basis. We are promoting wide-ranging initiatives, including recycling wastewater generated in factories and introducing systems for using rainwater.

Results of FY2015

The total amount of water received in FY2015 was 40.86 million m³, an increase of approximately 1.2 million m³ compared to the previous fiscal year. However, the amount of water received per unit production was 78% of the total for FY2010, exceeding the initial target by 12 percentage points.

Future initiatives

Under the Fifth Environmental Action Plan, Toshiba Group aims to reduce the amount of water received per unit production by 13% compared to the FY2010 level in FY2016. We will continue to promote the reuse and recycling of water in the electronic device segment, which accounts for 78% of the water received by Toshiba Group.

Amount of water received and that per unit production
[Image] Amount of water received and that per unit production

Breakdown of the amount of water received (FY2015)
[Image] Breakdown of the amount of water received

Amount of water recycled (FY2015)
[Image] Amount of water recycled

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Case Study: Waste management and local communication that support semiconductor production

Japan Semiconductor Corporation Oita Operations

Japan Semiconductor Corporation Oita Operations manufactures mixed signal ICs and other semiconductors. During production, the plant uses many chemicals, all of which are appropriately treated in order to discharge wastewater that meets the various applicable standards. In addition, the plant uses wastewater to breed Japanese freshwater snails, which fireflies feed on, and has worked with local community organizations, local government organizations, and companies in the vicinity to release the snails in the upstream of the Kitabana River, thereby successfully breeding fireflies. (2014: Several fireflies ⇒ 2015: 1,200 fireflies observed)

For these activities, the plant was awarded the Ministry of the Environment Award at the FY2015 Model Environmental Initiative Award Celebration held by the Ministry of the Environment. The plant will continue to promote local communication while expanding its ecosystem preservation activities.

[Image] Working with a local community association to confirm the release of freshwater snails (feed for fireflies)
Working with a local community association
to confirm the release of freshwater snails
(feed for fireflies)

[Image] Raising employees' environmental awareness by creating artwork with aluminum cans (firefly motif )
Raising employees' environmental awareness
by creating artwork with aluminum cans
(firefly motif )

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Case Study: Initiative for water resource management at Oita Operations

Oita Operations, Toshiba Corp.

To meet its need for large amounts of water necessary to manufacture semiconductors, Oita Operations promotes comprehensive, strategic water resource management.

Reinforcing the transport tubes connecting multiple pure-water production systems has enabled efficient resource management, greatly reducing industrial water consumption. In addition, separately collecting relatively clean wastewater has increased the amount of water recycled. Wastewater treated and discharged into the river is monitored continuously based on independent standards stricter than legal requirements. In collaboration with the local community, Oita Operations is also developing activities for cleaning areas along the river and ecosystem conservation activities.

[Image] Wastewater treatment facility designed to discharge wastewater cleaner than the river water
Wastewater treatment facility designed to discharge wastewater cleaner than the river water

[Image] River survey conducted along the Kitahana River to restore firefly habitats
River survey conducted along the Kitahana River to restore firefly habitats

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Case Study: Initiatives for protecting the water environment in Singapore

Toshiba Asia Pacific Pte. Ltd. and others

In Singapore, which imports most of its water supply due to limited water resources, increasing water self-sufficiency is an important national issue. At Singapore-based Toshiba Asia Pacific Pte. Ltd., employees attended a lecture on protecting the water environment. The lecture was planned jointly by the company and five local affiliated companies as part of its Global Environmental Action event; the lecture was given by Waterways Watch Society, an NPO, and was followed by a cleaning campaign targeting the Singapore and Kallang Rivers, both of which are major freshwater sources for the country. This event helped raise employees' environmental awareness by encouraging them to join forces to use water resources effectively.

[Image] Participants in the Global Environmental Action event held by the Singaporean subsidiary
Participants in the Global Environmental Action event held by the Singaporean subsidiary

[Image] Cleaning of the Singapore and Kallang Rivers
Cleaning of the Singapore and Kallang Rivers

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Case Study: Initiatives for water saving at overseas business and production sites

Toshiba JSW Turbine and Generator Private Limited

Toshiba JSW Turbine and Generator Private Limited, which was established in India in 2008, constructed a comprehensive water recycling system, thereby reducing wastewater to zero. Production wastewater is recycled for use as industrial water in manufacturing processes, while living sewage is recycled for use as water for planting. Also, by storing rainwater and using it as water for planting, the company strives to reduce the amount of precious water received.

[Image] Production wastewater treatment facility
Production wastewater treatment facility

[Image] Rainwater reservoir
Rainwater reservoir

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