Skip to main content
Pioneering the Thorium Energy Revolution

All Roads Lead to
Thorium Atomics

A modular high-temperature reactor platform delivering ~100 MWe firm power and 750°C industrial heat from a single 220 MWth core, with an embedded medical-isotope option. Built for energy sovereignty and American re-industrialization.

01
~100 MWe
Firm Power Output
02
750°C
Industrial Process Heat
03
Ac-225
Medical Isotope Dividend
~100 MWe Firm Power750°C Process HeatEnergy SovereigntyZero HALEU DependencyAc-225 Targeted Alpha TherapyDomestic Thorium FuelTRISO Inherent Safety~100 MWe Firm Power750°C Process HeatEnergy SovereigntyZero HALEU DependencyAc-225 Targeted Alpha TherapyDomestic Thorium FuelTRISO Inherent Safety
“We’ve just made a fifty-quadrillion-dollar discovery.”
— Glenn T. Seaborg, to John Gofman, upon discovering thorium’s conversion to fissile uranium-233, 1942. Nobel Prize in Chemistry, 1951. Chairman, U.S. Atomic Energy Commission, 1961–1971.
The Thesis
Three Revenue Pillars.
One Core.
One 220 MWth core. Three revenue pillars. The Tesseract TGR delivers ~100 MWe of firm, dispatchable electricity via combined cycle — the highest-margin baseload power on the market. The same core supplies 750°C process heat directly to industry. And every hour of operation banks a long-dated isotope option in Ac-225.

Firm Dispatchable Power

~100 MWe via combined cycle from a single 220 MWth core. Clean, firm, baseload electricity that runs 24/7 regardless of weather — the highest-margin power product on the grid. No intermittency. No storage required.

Industrial Process Heat

Steel, cement, ammonia, hydrogen, chemicals. The backbone of industrial civilization requires continuous heat above 400°C. No scalable clean solution exists today. The Tesseract TGR delivers 750°C helium directly to industry.

The Thorium Dividend

Most reactors produce spent fuel treated as a liability. Ours accumulates Thorium-229, the precursor to Actinium-225, a radioisotope being studied for targeted cancer therapy. The physics are embedded. The option compounds with every hour of operation.

Strategic Context
We Invented This.
We Walked Away.
In the 1960s, Oak Ridge National Laboratory operated the Molten Salt Reactor Experiment, proving the viability of the thorium fuel cycle under Nobel laureate Glenn Seaborg and Alvin Weinberg. The technology was a triumph of American ingenuity, abandoned not for technical failure but for policy shifts toward plutonium-based cycles.

The Mobilization Gap

While the U.S. rested on its declassified research, China made thorium a national imperative. In 2024, Beijing successfully operated the world’s first thorium-to-uranium conversion reactor. They have secured a 60,000-year supply of thorium and are aggressively scaling commercial deployment with 100% domestically-produced components.

The United States does not have a knowledge gap. We have a strategic mobilization gap. Zero operating thorium reactors. No domestic thorium fuel fabrication. Continued reliance on foreign enrichment for 97% of our uranium supply.

This is not a competition over electricity. China already has plenty of that.

The Platform
Tesseract™ TGR
A high-temperature gas-cooled reactor delivering firm power, industrial heat, and a long-dated isotope option — from a single core.
TGR Core

Built for Power. Designed for Sovereignty.

The Tesseract TGR is a 220 MWth pebble-bed reactor cooled by helium and fueled by TRISO, the most robust fuel form in nuclear engineering. Each fuel particle is its own microscopic containment vessel, rated to 1,600°C+.

Via combined cycle, the platform converts to ~100 MWe of firm, dispatchable electricity. It simultaneously delivers 750°C outlet temperature for direct industrial heat to steel mills, chemical plants, hydrogen production facilities, and data center campuses.

Electric Power
~100 MWe
Thermal Power
220 MWth
Outlet Temperature
750°C
Coolant
Helium
Fuel
TRISO Pebble Bed
Design Life
60 Years
HALEU Required
No
Inherent Safety
Safety Enforced by Physics
No active systems required. Passive safety demonstrated at commercial scale. China’s HTR-PM validated the pebble-bed HTGR architecture at 200 MWth in 2023.

Negative Temperature Coefficient

As temperature rises, reactivity drops. The physics won’t allow runaway.

TRISO Micro-Containment

Every fuel particle is its own containment vessel. SiC barrier rated to 1,600°C+.

Passive Heat Removal

Natural conduction and radiation. No pumps. No operator action. No external power.

He

Helium Coolant

Chemically inert. Single phase. No hydrogen pathway. No zirconium-steam risk.

The Unsolved Problem
The Clean Energy Gap
No One Has Solved
Everyone is focused on electricity. The industrial processes that build and sustain an economy have no clean heat source above 400°C.
< 150°C
✓ Heat pumps, solar thermal
150 – 400°C
~ Partial electrification
400 – 1,000°C
✗ No scalable clean solution
Tesseract™ TGR
750°C · Purpose Built
The Thorium Dividend
Spent Fuel as a Strategic Asset
The thorium fuel cycle produces something no other reactor can. A pathway to Actinium-225, a radioisotope under active clinical study for targeted cancer therapy.
Th–232
Thorium absorbs neutrons in the reactor core, breeding fissile uranium.
neutron capture + β decay
U–233
Fissile fuel produced inside TRISO. Powers the reactor. Begins a long decay chain.
alpha decay · 159,200 yr half-life
Th–229
The strategic asset. Accumulates automatically in spent fuel at zero cost.
alpha decay → Ra-225 → beta decay
Ac–225
Alpha-emitting radioisotope under study for targeted cancer therapy. Travels only a few cell diameters. Spares surrounding tissue.

Physics-Linked Upside

Ac-225 accumulation is a non-extractive byproduct of our primary heat cycle. It is not modeled in our base case. We treat it as embedded optionality, unlocked only with a permitted processing pathway and GMP-compliant supply chain.

Global supply of Ac-225 is severely constrained relative to projected clinical demand. A fleet of thorium reactors accumulates Th-229 inventory over decades of normal operation, creating a long-dated call option that compounds with time.

Our base case does not depend on isotopes. The upside is structural, not speculative.
Why Thorium Atomics
Structural Advantages
That Can’t Be Bolted On
01

No HALEU Dependency

Most advanced reactor designs require High-Assay Low-Enriched Uranium, a supply chain that does not yet exist at commercial scale. We launch on standard LEU available from domestic suppliers today.

02

Highest Outlet Temperature

750°C enables direct industrial heat delivery. Conventional reactors operate at 300°C. Sodium-cooled designs reach ~500°C. The gap between 500 and 750 is where heavy industry operates.

03

Domestic Fuel Sovereignty

Thorium is 3–4x more abundant than uranium with massive, untapped American reserves. As our fuel cycle matures, dependence on foreign enrichment supply chains approaches zero.

04

Isotope Optionality

The thorium fuel cycle is the only pathway that produces Th-229 as a natural byproduct, the parent isotope for Ac-225. This requires purpose-built physics, not a retrofit.

05

Time-Based Moat

Th-229 accumulates over decades of reactor operation. Even if a competitor started today on thorium, they would be decades behind in stockpile accumulation. Time is the barrier.

Leadership
Nuclear Engineering.
Capital Markets. Execution.
Decades of reactor operations experience combined with capital markets expertise and execution capability.
Young Hwang

Young Hwang

CEO & Founder

Ex-RBC Capital Markets. Built and scaled energy fintech. Capital markets experience and strategic vision for the thorium economy.

David Kerr

David Kerr

Chairman

Founder, Algonquin Power. Scaled a multi-billion dollar energy platform. Deep governance and strategic advisory experience.

Dr. Jack Vecchiarelli

Dr. Jack Vecchiarelli

Chief Scientific & Regulatory

Ex-OPG VP. 30+ years reactor engineering, safety case development, and regulatory engagement across multiple jurisdictions.

Craig Sellers

Craig Sellers

Head of Engineering

Ex-OPG Chief Nuclear Engineer. Reactor design, core physics, and modernization program leadership.

Dr. David Deak

Dr. David Deak

Advisor

President, Marbex. Ex-Tesla, ex-CTO Lithium Americas. Battery materials & energy supply chain.

Paul Hardy

Paul Hardy

Founder, EVP & Director

Strategic advisor. Investor relations and financing narrative development across growth-stage energy.

Soo-Whan Kim

Soo-Whan Kim

CFO

Public-company finance. SPAC structuring and capital markets execution in growth-stage energy companies.

Prit Singh

Prit Singh

Director

Founder, Thesis Capital. Capital markets advisory with 200+ investor roadshows.

Mark Hoffman

Mark Hoffman

Advisor

Westinghouse safety advisor for AP1000. Senior Reactor Operator, Braidwood & AP1000. 19 years at Exelon, thermal-hydraulics and accident analysis.

Dr. Kenneth Ricci

Dr. Kenneth Ricci

Reactor Physics Advisor

PhD Physics, Stanford. Thorium breeder reactor modeling and Monte Carlo neutronics. Published in Nuclear Technology. Fusion neutron source development at Adelphi Technology.

Dr. Tarak Woddi

Dr. Tarak Woddi

Reactor Physics Advisor

PhD Nuclear Engineering, Texas A&M. Licensed CANDU reactor operator. Thorium breeder reactor design and fuel cycle modeling. PRA across 11 nuclear power plants.

Thorium Atomics Intelligence
Heimdall/Fission Brief

Daily intelligence on the global nuclear industry covering policy, capital, technology, and geopolitics. From the team building North America’s thorium future.

Intelligence from Inside the Reactor Room

Most nuclear newsletters are written by journalists. Fission Brief is produced by Thorium Atomics, the only company in North America actively developing thorium fuel cycle technology. Our team understands fuel cycle economics at the engineering level. Every brief carries the perspective of operators, not observers.

What You Get
01

Policy & Regulation

NRC rulings, DOE funding announcements, Congressional legislation, and federal policy shifts that move markets.

02

Deal Flow & Capital

Funding rounds, M&A activity, SPAC transactions, public market movements, and institutional capital flows into nuclear.

03

Technology Signals

SMR milestones, fuel cycle breakthroughs, reactor deployment timelines, and engineering developments across the sector.

04

Thorium Watch

China’s TMSR progress, uranium supply chain vulnerabilities, thorium fuel cycle developments, and strategic implications.

Heimdall Products
Launching

Fission Brief

Daily intelligence digest delivered weekday mornings at 6:30 AM ET.

Coming Soon

Deep Watch

Long-form analysis on critical themes shaping the nuclear industry.

Coming Soon

Heimdall Alert

Real-time breaking news notifications for market-moving events.

Coming Soon

Heimdall Data

Analytics dashboard tracking nuclear sector capital flows and policy signals.

See Everything.
Miss Nothing.

Join the insiders who read Fission Brief before the market opens.

All Roads Lead to
Thorium Atomics

Government. Industry. Capital. Laboratories.

Thorium Atomics Inc.
800 S. Gay Street, Suite 700
Knoxville, TN 37929