STL Nuclear is a South African pioneer in TRISO nuclear fuel development and high-temperature gas-cooled reactor (HTGR) design.

We specialize in the research, development, and supply of TRISO fuel systems and next-generation nuclear fuel for advanced reactors. Our engineering team also focuses on the design and optimization of HTGR's, known for their efficiency, passive safety features, and suitability for industrial process heat.

STL Nuclear collaborates with government agencies, energy utilities, academic institutions and the private sector to support the transition to safer, more efficient nuclear power.

• At STL, safety, reliability, and innovation drive every solution we deliver.
• Design and consult on TRISO-based nuclear fuel.
• Design and manufacture fuel equipment for TRISO particles.
• Design and consult on High-Temperature Gas-cooled Reactors (HTGR).
• Conduct and support advanced nuclear energy R&D.


STL Nuclear (Pty) Ltd

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STL Nuclear (Pty) Ltd

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Teams

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