- Mr. Thibaut Barrion, France (3/19-present)
- Dr. Salih Alan, Turkey (7/18-present)
- Mr. Soo-Ho Jo, Korea (1/19-3/19)
- Mr. Yan-Alan Le Dault, France (9/18-1/19)
- Dr. Vagner Candido de Sousa, Brazil (8/17-8/18)
- Mr. Masaaki Aramaki, Japan (11/17-2/18)
- Mr. Jose Augusto Dias, Brazil (9/16-8/17)
- Mr. Tarcisio Silva, Brazil (8/15-8/16)
- Ms. Vinciane Guillot, France (3/16-8/16)
- Dr. Carlos De Marqui Jr., Brazil (10/15-4/16)
- Dr. Dongxing Cao, China (8/14-8/15)