Form 56 - 1 Home » Form 56-1 Thai version Only Publication Date Download Form 56-1: 2020 29 March 2021 Form 56-1: 2019 31 March 2020 Form 56-1: 2018 1 April 2019 Form 56-1: 2017 31 March 2018 Form 56-1: 2016 31 March 2017 Form 56-1: 2015 28 October 2016
