Medlemmerne af GVSt's medlemssammenslutninger er virksomheder efter EKSF-Traktaten, da de opfylder betingelserne i EKSF-Traktatens artikel 80 — dvs. udøver produktionsvirksomhed inden for kulsektoren.
The members of the associations affiliated to the GVSt are undertakings within the meaning of the ECSC Treaty as they satisfy the conditions of Article 80 of that Treacy inasmuch as they are engaged in production in the coal industry.