Rokkasho Enrichment Plant
Rokkasho Enrichment Plant is a enrichment facility operated by Japan Nuclear Fuel Limited in Japan. It has a capacity of 150 tSWU/yr as of 2026, about 0% of world enrichment capacity.
Japan's only enrichment plant, on the Rokkasho site alongside the long-delayed reprocessing facility. Capacity is small relative to the Japanese fleet, which imports most of its enrichment services.
| Stage | Enrichment |
|---|---|
| Operator | Japan Nuclear Fuel Limited |
| Country | Japan |
| Capacity | 150tSWU/yr |
| Figure applies to | 2026 |
| Note on the figure | IPFM, June 2026, with the plant restarting after years shipping almost nothing. JNFL targets up to 450 tSWU/yr by 2029. |
| Status | operating |
| Commissioned | not stated |
| Coordinates | 40.9500, 141.3800 |
This facility is about 0% of world enrichment capacity (68,076 tSWU/yr, 2025).
Japan Nuclear Fuel Limited also operates:
- J-MOX, Rokkasho (fabrication)
- Rokkasho LLW Disposal Center (repository)
- Rokkasho Reprocessing Plant (reprocessing)
Other enrichment facilities
At the market indicator. 150 tSWU/yr of nameplate capacity, valued at US$ 200.00 per SWU spot, comes to roughly US$ 30 million a year, or US$ 27 million at the long-term indicator. Treat both as scale, not revenue: most volume moves under contracts signed years earlier at prices neither figure reflects, and nothing here is netted against the cost of producing it. The indicators, and forty years of history behind them, are on fuel market prices.
Sources
- World Nuclear Association, Uranium Enrichment · retrieved 2026-09-06
How these sources are used, including the corrections applied on top of them and what is deliberately left blank · download the underlying data