The sedition charge was related to his participation in the September 19 protest.
The second charge was related to his role in the installing of the 2020 coup memorial plaque in Sanam Luang on September 20. This case was filed by the Fine Arts Department.
Panupong was arrested on Saturday in Bangkok’s Ramkhamhaeng area and was then taken to Huamark Police Station.
The protest leader has denied both charges and police have objected to him being granted bail. Officers said Panupong faces other, more serious charges and may flee if he is granted temporary release.