I’m not sure why you want to find such companies, but if the reason is that you’re planning to do stock investments, then in that case what you want to read is the annual report.
Most companies these days do report their GHG emissions in the annual report. But that’s not the important information you want right now. You want their future plans. Steelmaking currently doesn’t use hydrogen. What you want is not companies who manufacture steel using only hydrogen (since there are none, I think), but companies whose plans to manufacture steel using hydrogen are the fastest and most believable.
The HYBRIT project by SSAB in my understanding is the fastest and most believable plan today to create steel in massive scale using hydrogen. So I’d say SSAB is the company you want to invest into.
Even if you aren’t planning to make stock investments, reading the annual reports just for the GHG emission information could be useful.
