Step Function is founded by David Tew.

Step Function, LLC is leveraging the chemical potential in abundant ferrous iron rich natural minerals (eg: olivine) and industrial wastes (eg: metal slags and mine tailings) to produce hydrogen and methane from water and carbon dioxide. Step Function’s fuel production technology offers the potential for the synthesis of low-cost fuels at globally relevant scales – without the use of significant amounts of electricity, or any biomass. Furthermore, in industrial waste conversion applications, it will also potentially recover valuable critical minerals while rendering reactive mine wastes inert.

Learn more at https://www.step-function.com/about