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Private company

MoltexFLEX, Ltd.

Logo: moltexflex.com3

British nuclear energy company (e. 2022)

MoltexFLEX is a British nuclear energy company developing small modular molten salt reactors. Their reactor designs, termed "FLEX reactors", are stable salt reactors, and feature a hybrid approach whereby fuel assemblies similar to current light water reactors containing the liquid salt fuel mixture are submerged in a pool of liquid salt coolant.2 Wikipedia text CC BY-SA 4.0

Last updated Oct 21, 2026.

Overview

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MoltexFLEX is a British nuclear energy company developing small modular molten salt reactors. Their reactor designs, termed "FLEX reactors", are stable salt reactors, and feature a hybrid approach whereby fuel assemblies similar to current light water reactors containing the liquid salt fuel mixture are submerged in a pool of liquid salt coolant.2

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    Company websiteMoltexFLEX, Ltd. logo