Delegates from 18 countries take part in ceremony Representatives from 18 countries congratulated on the launch of the Global Hydrogen Industrial Association Alliance (GHIAA), which took place in Seoul on May 25. The followings are the remarks from 11 representatives who physically visited the event or virtually took part. ED. Joe Kremzer, GM Representatives from 18 countries congratulated on the launch of the Global Hydrogen Industrial Association Alliance (GHIAA), which took place on May 25.