Companies / org-ien
Instituto de Engenharia Nuclear (IEN/CNEN)
Brazilian CNEN institute identified as responsible for implementation, commissioning and operation of the planned UCRI critical unit at its Argonauta facility.
- Roles
- Research, Operator
- Organization type
- research_institution
- Country
- Brazil
- Aliases
- —
- Listing status
- Not applicable
- Exchange / ticker
- —
- Ownership / control
- unknown
- Website
- —
- Confidence
- medium
- Last verified
- 2026-10-13
Linked designs
- No designs tracked here.
Tracked deployment projects
1 linked project records: 1 licensing. These include proposals and historical cancelled or suspended plans; the count is not reactors built. Stages are the last recorded classifications, not proof of current activity. A recorded operator/host field does not by itself establish who will operate a reactor. A project without a recorded regulatory action is not necessarily without permission.
- UCRI critical unit for the Brazilian microreactor programme at IEN — Licensing · Brazil
Recorded link: operator/host field · project record checked 2026-10-13 · 1 recorded project action · sources
Ownership & relationships
- No dated parent/JV relationships recorded beyond ownership notes.
Milestones
- None recorded in this release.
Organization-level unresolved information
- None noted for this organization; linked projects may still have open evidence.
Sources
- IEN: Brazilian microreactor programme and critical-unit responsibilities (government_primary, published 11 Nov 2025, accessed 2026-10-13)