September 26, 2018

(First section of the TSE, Securities ID Code: 1983)

Technical collaboration agreementfor decommissioning work of nuclear power plant
We, Toshiba Plant Systems & Services Corporation (TPSC), have agreed to sign a technical collaborationagreement, with Siempelkamp NIS Ingenieurgesellschaft mbH, (NIS), a German-based company, in thearea of decommissioning work of Japanese commercial nuclear power plants currently in dismantlingprocess. NIS is a leading technology company in the dismantling area and has numerous projectexperiences in the U.S and Europe.
The purpose of this technical collaboration agreement is to introduce into Japanese market thesegmentation technology of reactor pressure vessel (RPV) and reactor vessel internal (RVI), one of theprocesses of decommissioning projects. By combining TPSC’s construction technology, developed throughconstruction and maintenance work of nuclear power plants in Japan, and NIS’ nuclear reactor dismantlingtechnology, this collaboration will enable to improve efficiency of dismantling work, shorten the work
period and ensure safety
Dismantling of RPV and RVI are one of the most important processes in the projects. These components
categorized as high radioactivity area, requires sophisticated segmentation technology as well as strict
waste management such as sealing into a container, transportation and storage. Furthermore, thedismantling of the components must be executed with strictness about reduction of radiation exposure andprevention of spreading contamination compared with other facilities and also with compliance to specificdetailed technical requirements by the authorities.
NIS owns, through its 25 years of experience in decommissioning business, broad technology fromdecommissioning project planning of nuclear power plants to development and manufacturing of speciallydesigned equipment for decommissioning. NIS has many experiences of dismantling of reactors mainly inGermany and the United States. In addition, NIS has built a firm relationship with its clients in Europe andthe United States through the company policy, “tailor-made solution offer”, in which NIS meet clients’various needs and solves each issue.
TPSC has conducted various kinds of works from design to on-site execution as a member of Toshibagroup in on-going decommissioning work of Fukushima Daiichi nuclear power plant of Tokyo ElectricPower Company Holdings, Inc. (Fukushima Daiichi). TPSC has experience in on-site work by utilizing
remotely controlled equipment (e.g. on-site investigation, decontamination, dismantling and removal).
TPSC believes that in addition to its construction technology, these advanced technology and construction
method developed through decommissioning work of Fukushima Daiichi will be highly beneficial for
dismantling of reactors of other domestic commercial nuclear power plants.
Through this collaboration, TPSC will strengthen further relationships with electric power utilities andToshiba Energy Systems & Solutions Corporation, and will work on R&D of technology and construction
method. TPSC will cooperate with other domestic and foreign companies and organizations that own
advanced expertise, and will continuously contribute to enhancing reliability of nuclear power business.