The treaty establishing the Benelux Economic Union ( `` Benelux Economische Unie/Union Économique Benelux '' ) was signed on 3 February 1958 in The Hague and came into force on 1 November 1960 to promote the free movement of workers , capital , services , and goods in the region .
The treaty establishing the Benelux Economic Union ( `` Benelux Economische Unie/Union Économique Benelux '' ) was signed February 3 , 1958 and came into force in 1960 to promote the free movement of workers , capital , services , and goods in the region .