“Many congratulations to SEC for organizing the Second Hydrogen Summit on 9-11 March 2021. This was an excellent conference on the production, uses and applications of green hydrogen as a clean source of energy to mitigate climate change in the world. It was very well organized and progressed smoothly. Scientific contents was up to date and of high quality, and was attended by large number of experts in the field, private, academics and official representations of a senior level.”