Ann: Hazer Signs MOU with Primetals Technologies, page-146

I need some help here MJ because I am still very new at this and still learning.

Perhaps if you answer these questions, I might have a better understanding:

Will the use of hydrogen make coking coal obsolete for the production of steel?

If that is right, what are the implications for BHP? 

I keep seeing a video on twitter called "think coal" that claims that "without coal, you can't have steel."

This link seems to contradict that claim from what I can tell.

https://leard.frontlineaction.org/coking-coal-steel-production-alternatives/

Would it be more correct to say that it is not economical to produce steel without coal?

Is it also correct to say that the Hazer Process will make it economical and In an environmentally friendly way?

Cheers Mega