SingTel has appointed Mark Chong as group chief technology officer (CTO) and Arthur Lang as CEO International, effective April 1, 2017. Chong succeeds Tay Soo Meng, who will take on an advisory role with the company. Chong has been with the company for over 20 years. Currently, Chong serves as CEO International of SingTel. Lang served as group CFO of CapitaLand prior to this where he oversaw financial reporting, treasury, tax, risk management, etc. Besides, Lang also worked with Morgan Stanley previously where he was COO of the Asia-Pacific investment banking division.