Rabbi Hoppenstein hails from Springs. He manages a heavy duty machinery engineering firm while still learning and teaching in the Yeshivah Gedolah of Johannesburg where he received Semichah (Rabbinic ordination) thirty years ago. He has a big heart for looking out for the less fortunate in the community and became aware of the urgent need for private hospital care. In 2020 he spearheaded the formation of the SOSA Medical Project and devotes much of his expertise and time to the project.