Provisional Translation

Medium-Term Implementation Plan for Spent Nuclear Fuel Reprocessing
The Nuclear Reprocessing Organization of Japan (NuRO) shall carry out its operations according to the MediumTerm Implementation Plan for Spent Nuclear Fuel Reprocessing (hereinafter referred to as "Medium-TermImplementation Plan") formulated in accordance with the Spent Nuclear Fuel Reprocessing Implementation Act(hereinafter referred to as "the Act"). NuRO shall proceed with carrying out the Medium-Term Implementation Plansteadily and efficiently by giving top priority to ensuring the safety of reprocessing and other related matters.
1) Timing, Location, and the Quantity of Spent Nuclear Fuel for Reprocessing
NuRO entrusts1 the reprocessing services to Japan Nuclear Fuel Limited (hereinafter referred to as “JNFL”) 2
and implements it at JNFL's Rokkasho Reprocessing Plant.
With regard to the quantity of spent fuel reprocessed, based on the principle of not possessing plutonium
without specific purposes, and taking into account the intent of "The Basic Principles on Japan's Utilization ofPlutonium" (determined by the Japan Atomic Energy Commission)3 , the plan shall be as follows:
FY
Quantity of spent nuclear fuel for reprocessing(tU)(Reference)
Estimated plutonium recovered (tPut)

2021

2022

2023

0070000.6(Reference) Forecast of the quantity of spent fuel reprocessed (estimated quantity of plutonium recovered)in FY2024 and FY2025:･FY2024: 170tU (1.4tPut)･FY2025: 140tU (1.1tPut)
2) Timing, Location, and the Quantity of Plutonium for MOX Fuel Fabrication
NuRO will entrust MOX (uranium and plutonium mixed-oxide) fuel fabrication services to JNFL4 and will
implement it at JNFL's Rokkasho MOX Fuel Fabrication Plant.
With regard to the quantity of plutonium for MOX fuel fabrication, based on the principle of not possessing
plutonium without specific purposes, and taking into account the intent of "The Basic Principles on Japan's
Utilization of Plutonium", the plan shall be as follows:

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4Approval obtained from the Minister of Economy, Trade and Industry in October 2016 in accordance with Article 42 of the Act.
Refers to reprocessing operator stipulated in Article 44 of the "Act on the Regulation of Nuclear Source Material, Nuclear Fuel
Material and Reactors" (hereinafter referred to as "Reactor Regulation Act").
Decision by the Japan Atomic Energy Commission on July 31, 2018.
Refers to a processor stipulated in Article 13 of the Nuclear Reactor Regulation Act.

1

FYQuantity of plutonium for MOX fuelfabrication*2(tPut)

2021

2022

2023

000(Reference) Forecast of the quantity of plutonium for MOX fuel fabrication in FY2024 and FY2025･FY2024: 0tPut･FY2025: 0.6tPut*1*1 The figure for FY2025 is the estimated quantity of plutonium recovered from 70tU of spent fuelreprocessed in FY2023. The actual amount for each fiscal year will be properly reflected in the MediumTerm Implementation Plan when the exact amount is determined by both of the electric powercompanies and JNFL taking into account the number of MOX fuel assemblies fabricated.
*2 Plutonium recovered from commissioning tests at the Rokkasho reprocessing plant will be reflected inthe Medium-Term Implementation Plan together with the specifics of *1.
3) Regarding the Implementation of Other Activities related to Reprocessing
NuRO will properly store and manage radioactive waste separated by reprocessing and radioactive waste
generated by operation, including waste generated in the future, at JNFL's Rokkasho Reprocessing Plant until
they are delivered for final disposal.
NuRO will properly continue to store and manage radioactive waste returned from overseas at JNFL's Waste
Storage Management Facility until it is delivered for final disposal for a period of 30 to 50 years, which is thenecessary period of time for cooling the waste. Also, NuRO will appropriately store and manage waste to be
returned from overseas in the future at Waste Storage Management Facility until it is delivered for final disposal.
With regard to decommissioning the plants and facilities described in the above paragraphs 1), 2) and 3), NuRO
will commence after their operation is terminated, based on the decommissioning implementation policy
prepared and published by JNFL in accordance with the Nuclear Reactor Regulation Act.
End2