Rokkasho Enrichment Plant
Rokkasho Enrichment Plant is a enrichment facility operated by Japan Nuclear Fuel Limited in Japan. Its capacity is not publicly disclosed.
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.
Facility
| Stage | Enrichment |
|---|---|
| Operator | Japan Nuclear Fuel Limited |
| Country | Japan |
| Capacity | not disclosed |
| Figure applies to | — |
| Note on the figure | Japan and Brazil together are reported as 355 tSWU/yr in 2025; a per-plant split is not given. |
| Status | operating |
| Commissioned | not stated |
| Coordinates | 40.9500, 141.3800 |
Position in the chain
No disclosed capacity, so its share of world enrichment capacity cannot be stated.
Japan Nuclear Fuel Limited also operates:
- Rokkasho Reprocessing Plant (reprocessing)
Other enrichment facilities
| Facility | Capacity | Status |
|---|---|---|
| Novouralsk, Zelenogorsk, Angarsk and Seversk | 29,133tSWU/yr | operating |
| CNNC enrichment plants | 13,789tSWU/yr | operating |
| Georges Besse II, Tricastin | 7,500tSWU/yr | operating |
| Urenco Almelo | not disclosed | operating |
| Urenco Gronau | not disclosed | operating |
| Urenco Capenhurst | not disclosed | operating |
| Urenco USA, National Enrichment Facility | not disclosed | operating |
| Project IKE, Oak Ridge | not disclosed | planned |
Sources
- World Nuclear Association, Uranium Enrichment · retrieved 2026-09-06