Slide 1: Second Quarter 2026 Earnings Call
Second Quarter 2026 Earnings Call AUGUST 11, 2026
Slide 2: Disclaimer
Disclaimer This presentation (this “Presentation”) has been prepared by Terrestrial Energy Inc. (the “Company”) solely for informational purposes. This Presentation is intended to provide a general overview of the Company and its business. This Presentation should not be construed as a prospectus or
Slide 3: 2Q Highlights
2 0 2 6 2Q Highlights Terrestrial Energy Inc. Proprietary Information - All Intellectual Property Rights Reserved. 3
Slide 4: Three-Pillar Framework of Business Plan Execution: 2Q 2026 Progress
Three-Pillar Framework of Business Plan Execution: 2Q 2026 Progress Engineering & Commercial Pipeline Regulation Supply Chain for IMSR Plant • NRC Issues Safety Evaluation • Westinghouse supplying • Ground and research leases Report (12 May) Approving uranium tetrafluoride at signed for 77 acres at
Slide 5: 2Q 2026 and Recent Milestone Recap
2Q 2026 and Recent Milestone Recap 2Q 2026 2Q 2026 JULY 2026 NRC accepts final submission of NRC approves IMSR PIE Signed Engineering Services the IMSR Postulated Initiating methodology Topical Report Agreement with Zachry Group Events methodology (PIE) and issues Safety Evaluation supporting IMSR P
Slide 6: Capital-light business model taps four revenue streams
Cumulative Gross Margin Segment Description % of Revenue revenue $M % Site selection, site and use-specific Pre-construction services engineering studies for construction and licensing planning preparation $98 23% 4% Terrestrial Energy’s Construction services & Supply of services and components as s
Slide 7: IMSR Plant's Operating Advantages Serve Both Industrial Heat and Electricity Markets
IMSR Plant’s Operating Advantages Serve Both $1.6T Industrial Heat and Electricity Markets current SAM Total Serviceable Addressable Firm & Low-Cost High Temperature Market (SAM) for IMSR Plants is IMSR Plants have high-temperature thermal output, creating Industrials require clean firm low-cost the
Slide 8: IMSR Fuel Salt Supply: One New Plant, Not Three
IMSR Fuel Salt Supply: One New Plant, Not Three The IMSR Fuel Salt production avoids step 3, physical-form fabrication, and starts with LEU from commercial plants that today supply LWR fuel ALL SOLID FUEL REACTORS (LWR and GEN IV) — THREE STEPS, THREE PLANTS 1 Isotopic Form 2 Chemical Form 3 Physica
Slide 9: IMSR uses readily available and inexpensive low-enriched uranium (LEU) in its fuel
IMSR uses readily available and inexpensive low-enriched uranium (LEU) in its fuel Low-Enriched Uranium High-Assay Low-Enriched Uranium LEU1 HALEU (15-20) Uranium-235 <5% U-235 15-20% U-235 enrichment level $2,700 / kgU2 Cost $32,600 / kgU2 Terrestrial Energy IMSR (Gen IV), Gen II/III/III+ Most othe
Slide 10: IMSR Plant designed for fast delivery of energy solutions to industry
End-user heat / power (industry / grid electric power) IMSR Plant is designed C for fast delivery of energy solutions to IMSR Non-nuclear Thermal and Electric Facility (TEF) B industry A Dual IMSR Nuclear Separation of nuclear from thermal Facility and electrical systems allows: • Allows end-user fl
Slide 11: IMSR Plant addresses the weaknesses and limitations of LWR and other Gen IV technology
Terrestrial Energy’s IMSR Plant addresses the weaknesses and limitations of LWR Gen IV Sodium Fast Reactor Terrestrial Energy IMSR Gen IV High Temperature Gas technology with best- Gen IV Molten Salt Reactor (MSR) Reactor (HTGR) (SFR) in-class Gen IV Best-in-class SMR capital efficiency: Lower capit
Slide 12: IMSR Technology Fundamentals Drive Down the LCOE – Illustrative
IMSR Technology Fundamentals Drive Down the LCOE – Illustrative Inherent safety uses the natural Low pressure systems are more properties of the system itself and not complex robust and less complex than active mechanisms using control rods, pumps, high-pressure systems valves, and actuators $142 –
Slide 13: Compelling demand tailwinds
Compelling demand tailwinds AI data center growth, grid reliability, and energy security are driving secular changes and unprecedented demand for clean firm power and SMR innovation Most capital-efficient SMR Proprietary Gen IV IMSR technology incorporating tested and demonstrated DOE molten salt te
Slide 14: Strengthening the Team: New Leadership Additions
Strengthening the Team: New Leadership Additions Pamela Cowan Kathy McCarthy EVP, Engineering, appointed July 2026 Board of Directors, appointed July 2026 • 30+ years in nuclear industry; executive roles at • Career in major projects and nuclear technology Westinghouse spanning Americas operating pl
Slide 15: 2Q Financial Highlights
2 0 2 6 2Q Financial Highlights Terrestrial Energy Inc. Proprietary Information - All Intellectual Property Rights Reserved. 15
Slide 16: 2Q 2026 Financial Results
2Q 2026 Financial Results 1 2 3 4 $9.4M Net Loss for $6.4M Cash Burn $283.4M Cash, Cash 105.9M Issued and 2Q2026, $1.1M for 2Q2026, $1.5M Equivalents and Outstanding Shares Decrease vs. 1Q Decrease vs. 1Q Investments as of June 2026 2026 30, 2026 The decrease is attributable to: $14.8M of cash used
Slide 17: June 30, 2026 Capitalization Summary
June 30, 2026 Capitalization Summary (shares in millions) % of Total Common shares 82.7 78% Exchangeable shares 23.2 22% Total shares issued and outstanding 105.9 100% 1 Long term incentive program, net 13.0 12% Private warrants July 2028 10.7 10% Public warrants October 2030 11.5 11% Private warran
Slide 18: Glossary
Glossary Term Definition Base load The minimum amount of electric power delivered or required over a given time period at a steady rate. Core-unit The term to denote the vessel that contains the primary components of the IMSR, the reactor core, heat exchangers, pumps, etc. DOE and LPO The United Sta