The complainants allege that "illegal dispatch" workers, i.e. precarious workers in disguised employment relationships, in Hyundai Motors' Corporation (HMC) Ulsan, Asan and Jeonju plants, Hynix/Magnachip, Kiryung Electronics and KM&I, are effectively denied legal protection under the Trade Union and Labour Relations Adjustment Act (TULRAA) and are left unprotected vis-à-vis: (1) recurring acts of anti-union discrimination, notably dismissals, aimed at thwarting their efforts to establish a union; (2) the consistent refusal of the employer to bargain as a result of which none of the unions representing those workers have succeeded in negotiating a collective bargaining agreement; (3) dismissals, imprisonment and compensation suits claiming exorbitant sums, for "obstruction of business" in case of industrial action; (4) physical assaults, court injunctions and imprisonment for "obstruction of business" aimed at preventing dismissed trade union leaders from re-entering the premises of the company to stage rallies or exercise representation functions