At Siam Refractory, we believe true sustainability begins with bold innovation. In partnership with Rondo Energy, we are redefining how the world stores and uses clean heat.

Together, we are developing advanced Thermal Media—high-performance refractory bricks that can store heat at over 1,000°C, powered entirely by renewable energy such as solar and wind. These specially engineered bricks are the heart of Heat Battery systems, a breakthrough solution to decarbonize heavy industry.

From Earth to Energy :

Our refractory bricks—made from natural clay and shaped for optimal thermal performance—can retain heat for days, releasing it on demand through AI-controlled airflow systems.

Real Impact and Global Vision

• 2.4 GWh annual storage capacity at launch, scaling to 90 GWh
• 12 million tons CO₂ reduction per year potential. Equivalent to taking 4 million cars off the road