San was announced as the ambassador oh his hometown 'Namhae' on the 15th April 2021.

Here are just some of the instances where San has donated to different charities and organisations.

ARTICLE: Choi Jong-Cheol, the director of the Namhae County Disabled Sports Association, famous as the father of Choi San, tells his story of loving Namhae and his family – Namhae TV (7th May 2021)

San's performances resulted in him and Ateez going viral, as mentioned by his fellow Ateez members.