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Angarsk Electrolysis Chemical Combine (AECC)

Operating · Russia · Enrichment plant

Low-confidence record: sources are thin or conflict. Figures below are the best available public statements, not confirmed facts.

Rosatom's smallest enrichment plant, in Siberia's Irkutsk region, listed at a nominal 2.6 million SWU a year and host since 2007 of the Russia-led International Uranium Enrichment Centre. Rosatom has named it the next site for generation 9+ centrifuge re-equipment after Seversk; no start date has been announced.

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Current state

StatusOperating
CountryRussia
LocationAngarsk, Irkutsk region
OperatorJSC Angarsk Electrolysis Chemical Combine, TVEL / Rosatom
OwnershipRosatom (Russian state corporation) via its Fuel Division (TVEL). International Uranium Enrichment Centre on site was founded by Russia (90%) and Kazakhstan (10%) in 2007.
Facility typeEnrichment plant
TechnologyGas centrifuge
ProductsLEU
Capacity (tSWU/yr)2,600

Notes

Capacity 2,600 tSWU/yr is the 2007 figure (WNN) repeated by WISE; 2007 plans to reach ~4,200 tSWU and ~10,000 tSWU by 2015 are not confirmed as realized. 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.

Timeline

  • 2007-05-10 — Russia and Kazakhstan signed the agreement creating the International Uranium Enrichment Centre at Angarsk. (source)
  • 2025-12-02 — Rosatom named Angarsk as the next enrichment plant to be re-equipped with generation 9+ centrifuges. (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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Sources

  1. Enrichment capacity at Angarsk to be boosted — World Nuclear News, checked 2026-10-11
  2. Rosatom starts modernization of its third uranium enrichment plant — Rosatom (Atommedia) (primary), checked 2026-10-11
  3. Uranium Enrichment Facilities (updated 2 May 2026) — WISE Uranium Project, checked 2026-10-11
  4. Uranium Enrichment (updated 29 Sep 2026) — World Nuclear Association, checked 2026-10-11