Well - I would suggest writing to ZG directly - to ask what catalyst Norront now favors…
However, I have heard that he is not responsive to questions which involve trade secrets. Which stands to reason – after all they do plan to go to market with a commercial product. From: Teslaalset I watched his presentation via YouTube, but it was not mentioned there (including the questions part). Check Zeiner-Gundersen’s presentation at ICCF-21. Not sure but it could have come out in later questioning. "In fact, it is now becoming evident what Sindre Zeiner-Gundersen may have meant when he said that they are no longer using the Shell catalyst (iron oxide) of Holmlid but have made an improvement." ➢ What is the source of this statement?