Companies / org-terrestrial
Terrestrial Energy
Developer of Integral Molten Salt Reactor (IMSR) small modular plants. Publicly listed on Nasdaq as IMSR after October 2025 business combination with HCM II. No deployment projects are tracked in this SMRMap release yet.
- Roles
- Reactor developer, Vendor
- Organization type
- vendor
- Country
- United States
- Aliases
- Terrestrial Energy Inc., IMSR
- Listing status
- Publicly listed
- Exchange / ticker
- Nasdaq:IMSR · source Terrestrial Energy begins trading on Nasdaq (IMSR) · verified 2026-10-01
- Ownership / control
- public_shareholders
Began Nasdaq trading as IMSR on 2025-10-29 following HCM II combination completed 2025-10-28. - Confidence
- high
- Last verified
- 2026-10-01
Linked designs
- IMSR (Integral Molten Salt Reactor) — Molten salt reactor (MSR) · SMR
Tracked deployment projects
- No projects tracked here.
Ownership & relationships
- No dated parent/JV relationships recorded beyond ownership notes.
Milestones
- 2025-10-29 — Began trading on Nasdaq as IMSR (warrants IMSRW).
Unresolved information
- No site-specific deployment project yet curated into this release.
Sources
- Terrestrial Energy begins trading on Nasdaq (IMSR) (company_primary, accessed 2026-10-01)
- Terrestrial Energy Form 8-K — IMSR listing (company_primary, accessed 2026-10-01)
- IAEA Advanced Reactors Information System (ARIS) (iaea_or_nea, accessed 2026-10-01)