Advanced Info Service Public Company Limited announced the resignation of Somprasong Boonyachai; Prasan Chuaphanich; Anek Pana-apichon; and Hui Weng Cheong as the director. The company appointed 4 directors to replace the directors who resigned, effective on October 21, 2021 that are Sarath Ratanavadi; Yupapin Wangviwat; Smith Banomyong; and Arthur Lang Tao Yih.