Airport workers stage protest over labour conditions 3 published : 10 Mar 2021 at 23:13 3 Airport workers protest over labour conditions at the Labour Ministry in Bangkok, Wednesday. (Photo: Thomson Reuters Foundation/Handout by Puwadon Onlamoon/International Transport Workers' Federation) Hundreds of airport workers held a demonstration in Bangkok on Wednesday to dispute changes to their contracts that they say strips them of basic labour rights and has led to forced resignations and arbitrary dismissals. The protest involved at least 200 workers for AoT Aviation Security (AoT Avsec), a joint venture set up last year between state-owned Airports of Thailand (AoT) and three security firms, with unions saying conditions had worsened during the pandemic.