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Electrochemical Plant (ECP), Zelenogorsk

Operating · Russia · Enrichment plant

Rosatom's second-largest enrichment plant, in Siberia's Krasnoyarsk region, with a nominal capacity of about 8.7 million SWU a year per WISE and NTI. It was the first Russian plant to finish re-equipping with generation 9+ centrifuges, a programme begun in 2018-2019 and completed in 2025.

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Current state

StatusOperating
CountryRussia
LocationZelenogorsk, Krasnoyarsk region
OperatorJSC Production Association Electrochemical Plant, TVEL / Rosatom
OwnershipRosatom (Russian state corporation) via its Fuel Division (TVEL).
Facility typeEnrichment plant
TechnologyGas centrifuge
ProductsLEU
Capacity (tSWU/yr)8,700

Notes

Capacity 8,700 tSWU/yr per WISE and NTI (NTI dates it to 2011, with a plan to reach 12,000 by 2020 that is unconfirmed). WNA (Sept 2026, from Nuclear Fuel Report 2025) gives Rosatom's combined capacity across all four sites as 29,133 tSWU/yr in 2025 (about 43% of world capacity), so WISE's dated per-plant figures understate the current total. Rosatom does not publish per-site capacity. Start year of re-equipment differs: Rosatom says projects began in 2018; IPFM says installation began in 2019. Region set to 'asia' (Siberia).

Timeline

  • 2019 — Installation of new generation 9+ centrifuges began at the Zelenogorsk plant. (source)
  • 2025 — Rosatom completed the modernization of the Electrochemical Plant's enrichment facility. (source)

The timeline is append-only: corrections are added as new entries. Stated targets appear in the current-state table, never as milestones.

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Related facilities

See all 29 facilities in the Uranium Enrichment & HALEU Tracker →

Sources

  1. Uranium Enrichment Facilities (updated 2 May 2026) — WISE Uranium Project, checked 2026-10-11
  2. Electrochemical Plant (EKhZ) Production Association — Nuclear Threat Initiative, checked 2026-10-11
  3. Rosatom begins deployment of new-generation centrifuges at Seversk — International Panel on Fissile Materials, checked 2026-10-11
  4. Rosatom starts modernization of its third uranium enrichment plant — Rosatom (Atommedia) (primary), checked 2026-10-11
  5. Uranium Enrichment (updated 29 Sep 2026) — World Nuclear Association, checked 2026-10-11