Prof. Ho was also listed in the “Stanford University’s list of the world’s top 2% of scientists” among the nearly seven million scholars in the world, from a study released by Stanford University in 2019 and 2020, according to the information provided by Scopus (covering total citation number, H-index, etc.). Based on publications, he was ranked 233 (career-long) and 49 (2019) among the 32198 scientists in the field of Physical Chemistry (one of 176 sub-areas).