In March 1979, a Tripartite agreement was reached, stipulating that ARBED would invest 23,2 billion francs by 1983 to modernise its factories.
Am Mäerz 1979 gouf an engem Tripartitesaccord festgehalen, datt d'Arbed géif 23,2 Milliarde Frang bis 1983 investéieren, fir seng Produktiounsmëttelen ze moderniséieren.