South African Airways (SOC) Limited (In Business Rescue) and Others v National Union of Metalworkers of South Africa obo Members and Others (JA32/2020) [2020] ZALAC 34; [2020] 8 BLLR 756 (LAC); (2020) 41 ILJ 2113 (LAC); 2021 (2) SA 260 (LAC) (9 July 2020)