Commission 4
President: Allison Kealy (Australia)
Vice President: Vassilis Gikas (Greece)
Sub-Commission 4.1
Chair: Laura Ruotsalainen (Finland)
Vice-Chair: Ruizhi Chen (China)
Sub-Commission 4.2
Chair: Suelynn Choy (Australia)
Vice Chair: Sunil Bisnath (Canada)
Sub-Commission 4.3
Chair: Michael Schmidt (Germany)
Vice-Chair: Ehsan Forootan (Wales)
Secretary: TBA
Sub-Commission 4.4
Chair: Pawel Wielgosz (Poland)
Vice-Chair: Jianghui Geng (China)
Secretary: Grzegorz Krzan (Poland)