Also, ThyssenKrupp is one of the world's largest steel...

Also, ThyssenKrupp is one of the world's largest steel producers, and have demonstrated an interest in recycling the carbon emitted in steel production and turning it into fuel! (which is exactly what NCF does)

https://www.thyssenkrupp.com/en/carbon2chem/

The project involves partners from the chemical, energy and steel industries, creating an entirely new collaboration between key national industries.

The chemical, steel and electricity industries employ more than half a million people in Germany and generate total sales of around €264 billion.

Germany is the biggest steel producer in the EU and the seventh biggest worldwide. As a basic industry, the steel sector is of great importance for value chains in Germany. The many innovations from this branch of industry and its close integration with other sectors contribute to the success of e.g. the automotive and machinery industries.

Surely this has got to be the very same large steel manufacturer out of Europe that NCF are working with? Time will tell.