| Date | Name |
| 29/01/2015 | Mr Cheon Dae Woong |
| 27/06/2015 | Mr Ito Junichi |
| 31/03/2016 | Mr Brett Arthur |
| 28/06/2016 | Mr Bradley Jan Challburg |
| 28/12/2016 | Mr Dieter Streiner |
| 27/01/2017 | Mrs Pimpan Surintarangoul |
| 26/05/2017 | Mr Somsak Kaopratum |
| 17/02/2018 | Ms Ursula Hanusch |
| 12/05/2018 | Mr Trass Jaengkit |
| 30/01/2019 | Ms Parvine Assemani |
| 06/02/2019 | Ms Homchan Graf |
| 15/05/2019 | Mr Joohyung Kim |
| 03/10/2019 | Mr Qin Zheng |
| 09/10/2019 | Mr Suwit Jencharoenwong |
