[1][2] Following his September 2024 appointment to the Paetongtarn Cabinet, serial petitioner Ruangkrai Leekitwattana filed a complaint with the Election Commission of Thailand against Prime Minister Paetongtarn Shinawatra for appointing Surapong, alleging he was linked to corruption.

[3] Leekitwattana cited Surapong's participation in the Kanchanaburi Provincial Administrative Organisation (PAO) election in 2020, where a person was convicted of vote buying—reportedly on Piyachote's behalf.

[3] In 2012, the Election Commission dismissed a previous vote buying complaint against Surapong.

[4] Surapong is overseeing the planning for congestion pricing in Bangkok.

He has defended the ministry's proposals to ensure the pricing plan is accountable and does not benefit businesses or investors.