En række interesserede parter har påstået, at EU-erhvervsgrenens skade skyldtes dens engagement i produktion af byggematerialer (f.eks. sandwichpaneler, trapezformede plades mv.) i de efterfølgende led enten direkte eller gennem forretningsmæssigt forbundne virksomheder i grupperne.
It has been alleged by some interested parties that the injury to the Union industry was caused from its engagement in the downstream business of producing construction materials (e.g. sandwich panels, trapezoidal sheets etc.) either directly or through related companies within the groups.