A few days after the 2021 Myanmar coup d'état, while other activists in the country were still deliberating, he organized the first ever protest against the junta. Following that first protest in Mandalay, anti-regime rallies blossomed across the country.[2][6][7]
On 19 April 2021, authorities issued an arrest warrant and charged San with defamation of the state under section 505 (a) of the penal code. They announced a 10 million kyat (U.S. $7,000) reward for information leading to his arrest.[5]
On 10 June 2021, he received the Park Jong-cheol Human Rights Award.[8]
He is also a member of Anti-junta Forces Coordination Committee-Mandalay[9] that is a member organization of NUCC.[10]